* [Qemu-devel] [PATCH 0/4] S/390 host and target support @ 2009-07-24 17:08 Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Ulrich Hecht 2009-10-06 23:22 ` [Qemu-devel] [PATCH 0/4] S/390 host and target support Alexander Graf 0 siblings, 2 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-24 17:08 UTC (permalink / raw) To: qemu-devel; +Cc: aliguori, riku.voipio Here's the host support again, and the s390x-linux-user target, which I think are both ready for prime time now. The target has received an inordinate number of fixes and new instructions and now passes several test suites (including openssl and gcc executable tests), can compile source code, run ssh, rpm, you name it. It also fares reasonably well at LTP, especially with the bundle of syscall fixes I'm going to post later. Performance has improved dramatically since last time, by a factor of six or so. I measured md5sum clocking about 4.8 times as many cycles on my Phenom with qemu-s390x as natively on our z10. The host part has not changed dramatically. A small fix, a small optimization, and a bit of formatting to comply with the coding style. S/390 on S/390 emulation works, too. :) CU Uli Ulrich Hecht (4): S/390 CPU emulation S/390 host/target build system support S/390 host support for TCG linux-user: S/390 64-bit (s390x) support Makefile.target | 9 + configure | 20 +- cpu-exec.c | 42 + disas.c | 3 + dyngen-exec.h | 2 +- linux-user/elfload.c | 18 + linux-user/main.c | 82 ++ linux-user/s390x/syscall.h | 25 + linux-user/s390x/syscall_nr.h | 348 ++++++ linux-user/s390x/target_signal.h | 26 + linux-user/s390x/termbits.h | 283 +++++ linux-user/signal.c | 314 +++++ linux-user/syscall.c | 18 +- linux-user/syscall_defs.h | 56 +- qemu-binfmt-conf.sh | 5 +- s390-dis.c | 4 +- s390x.ld | 194 +++ target-s390x/cpu.h | 131 ++ target-s390x/exec.h | 51 + target-s390x/helper.c | 81 ++ target-s390x/helpers.h | 128 ++ target-s390x/op_helper.c | 1719 ++++++++++++++++++++++++++ target-s390x/translate.c | 2479 ++++++++++++++++++++++++++++++++++++++ tcg/s390/tcg-target.c | 1145 ++++++++++++++++++ tcg/s390/tcg-target.h | 76 ++ 25 files changed, 7244 insertions(+), 15 deletions(-) create mode 100644 linux-user/s390x/syscall.h create mode 100644 linux-user/s390x/syscall_nr.h create mode 100644 linux-user/s390x/target_signal.h create mode 100644 linux-user/s390x/termbits.h create mode 100644 s390x.ld create mode 100644 target-s390x/cpu.h create mode 100644 target-s390x/exec.h create mode 100644 target-s390x/helper.c create mode 100644 target-s390x/helpers.h create mode 100644 target-s390x/op_helper.c create mode 100644 target-s390x/translate.c create mode 100644 tcg/s390/tcg-target.c create mode 100644 tcg/s390/tcg-target.h ^ permalink raw reply [flat|nested] 14+ messages in thread
* [Qemu-devel] [PATCH 1/4] S/390 CPU emulation 2009-07-24 17:08 [Qemu-devel] [PATCH 0/4] S/390 host and target support Ulrich Hecht @ 2009-07-24 17:08 ` Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 2/4] S/390 host/target build system support Ulrich Hecht 2009-07-25 17:05 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Blue Swirl 2009-10-06 23:22 ` [Qemu-devel] [PATCH 0/4] S/390 host and target support Alexander Graf 1 sibling, 2 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-24 17:08 UTC (permalink / raw) To: qemu-devel; +Cc: aliguori, riku.voipio Currently only does userspace with 64-bit addressing, but it's quite good at that. Signed-off-by: Ulrich Hecht <uli@suse.de> --- cpu-exec.c | 42 + disas.c | 3 + s390-dis.c | 4 +- target-s390x/cpu.h | 131 +++ target-s390x/exec.h | 51 + target-s390x/helper.c | 81 ++ target-s390x/helpers.h | 128 +++ target-s390x/op_helper.c | 1719 ++++++++++++++++++++++++++++++++ target-s390x/translate.c | 2479 ++++++++++++++++++++++++++++++++++++++++++++++ 9 files changed, 4636 insertions(+), 2 deletions(-) create mode 100644 target-s390x/cpu.h create mode 100644 target-s390x/exec.h create mode 100644 target-s390x/helper.c create mode 100644 target-s390x/helpers.h create mode 100644 target-s390x/op_helper.c create mode 100644 target-s390x/translate.c diff --git a/cpu-exec.c b/cpu-exec.c index 2385d56..855ea3e 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -249,6 +249,7 @@ int cpu_exec(CPUState *env1) #elif defined(TARGET_MIPS) #elif defined(TARGET_SH4) #elif defined(TARGET_CRIS) +#elif defined(TARGET_S390X) /* XXXXX */ #else #error unsupported target CPU @@ -712,6 +713,7 @@ int cpu_exec(CPUState *env1) #elif defined(TARGET_SH4) #elif defined(TARGET_ALPHA) #elif defined(TARGET_CRIS) +#elif defined(TARGET_S390X) /* XXXXX */ #else #error unsupported target CPU @@ -1234,6 +1236,46 @@ static inline int handle_cpu_signal(unsigned long pc, unsigned long address, return 1; } +#elif defined (TARGET_S390X) +static inline int handle_cpu_signal(unsigned long pc, unsigned long address, + int is_write, sigset_t *old_set, + void *puc) +{ + TranslationBlock *tb; + int ret; + + if (cpu_single_env) + env = cpu_single_env; /* XXX: find a correct solution for multithread */ +#if defined(DEBUG_SIGNAL) + printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", + pc, address, is_write, *(unsigned long *)old_set); +#endif + /* XXX: locking issue */ + if (is_write && page_unprotect(h2g(address), pc, puc)) { + return 1; + } + + /* see if it is an MMU fault */ + ret = cpu_s390x_handle_mmu_fault(env, address, is_write, MMU_USER_IDX, 0); + if (ret < 0) + return 0; /* not an MMU fault */ + if (ret == 0) + return 1; /* the MMU fault was handled without causing real CPU fault */ + + /* now we have a real cpu fault */ + tb = tb_find_pc(pc); + if (tb) { + /* the PC is inside the translated code. It means that we have + a virtual CPU fault */ + cpu_restore_state(tb, env, pc, puc); + } + /* we restore the process signal mask as the sigreturn should + do it (XXX: use sigsetjmp) */ + sigprocmask(SIG_SETMASK, old_set, NULL); + cpu_loop_exit(); + /* never comes here */ + return 1; +} #else #error unsupported target CPU #endif diff --git a/disas.c b/disas.c index af5a9ea..da5b1a5 100644 --- a/disas.c +++ b/disas.c @@ -195,6 +195,9 @@ void target_disas(FILE *out, target_ulong code, target_ulong size, int flags) #elif defined(TARGET_CRIS) disasm_info.mach = bfd_mach_cris_v32; print_insn = print_insn_crisv32; +#elif defined(TARGET_S390X) + disasm_info.mach = bfd_mach_s390_64; + print_insn = print_insn_s390; #elif defined(TARGET_MICROBLAZE) disasm_info.mach = bfd_arch_microblaze; print_insn = print_insn_microblaze; diff --git a/s390-dis.c b/s390-dis.c index 86dd84f..9a73a57 100644 --- a/s390-dis.c +++ b/s390-dis.c @@ -191,10 +191,10 @@ init_disasm (struct disassemble_info *info) // switch (info->mach) // { // case bfd_mach_s390_31: - current_arch_mask = 1 << S390_OPCODE_ESA; +// current_arch_mask = 1 << S390_OPCODE_ESA; // break; // case bfd_mach_s390_64: -// current_arch_mask = 1 << S390_OPCODE_ZARCH; + current_arch_mask = 1 << S390_OPCODE_ZARCH; // break; // default: // abort (); diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h new file mode 100644 index 0000000..3505df4 --- /dev/null +++ b/target-s390x/cpu.h @@ -0,0 +1,131 @@ +/* + * S/390 virtual CPU header + * + * Copyright (c) 2009 Ulrich Hecht + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ +#ifndef CPU_S390X_H +#define CPU_S390X_H + +#define TARGET_LONG_BITS 64 + +#define ELF_MACHINE EM_S390 + +#define CPUState struct CPUS390XState + +#include "cpu-defs.h" + +#include "softfloat.h" + +#define NB_MMU_MODES 2 // guess +#define MMU_USER_IDX 0 // guess + +typedef union FPReg { + struct { +#ifdef WORDS_BIGENDIAN + float32 e; + int32_t __pad; +#else + int32_t __pad; + float32 e; +#endif + }; + float64 d; + uint64_t i; +} FPReg; + +typedef struct CPUS390XState { + uint64_t regs[16]; /* GP registers */ + + uint32_t aregs[16]; /* access registers */ + + uint32_t fpc; /* floating-point control register */ + FPReg fregs[16]; /* FP registers */ + float_status fpu_status; /* passed to softfloat lib */ + + struct { + uint64_t mask; + uint64_t addr; + } psw; + + int cc; /* condition code (0-3) */ + + uint64_t __excp_addr; + + CPU_COMMON +} CPUS390XState; + +#if defined(CONFIG_USER_ONLY) +static inline void cpu_clone_regs(CPUState *env, target_ulong newsp) +{ + if (newsp) + env->regs[15] = newsp; + env->regs[0] = 0; +} +#endif + +CPUS390XState *cpu_s390x_init(const char *cpu_model); +void s390x_translate_init(void); +int cpu_s390x_exec(CPUS390XState *s); +void cpu_s390x_close(CPUS390XState *s); +void do_interrupt (CPUState *env); + +/* you can call this signal handler from your SIGBUS and SIGSEGV + signal handlers to inform the virtual CPU of exceptions. non zero + is returned if the signal was handled by the virtual CPU. */ +int cpu_s390x_signal_handler(int host_signum, void *pinfo, + void *puc); +int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw, + int mmu_idx, int is_softmuu); + +void cpu_lock(void); +void cpu_unlock(void); + +static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls) +{ + env->aregs[0] = newtls >> 32; + env->aregs[1] = newtls & 0xffffffffULL; +} + +#define TARGET_PAGE_BITS 12 // guess + +#define cpu_init cpu_s390x_init +#define cpu_exec cpu_s390x_exec +#define cpu_gen_code cpu_s390x_gen_code +#define cpu_signal_handler cpu_s390x_signal_handler +//#define cpu_list s390x_cpu_list + +#include "cpu-all.h" +#include "exec-all.h" + +#define EXCP_OPEX 1 /* operation exception (sigill) */ +#define EXCP_SVC 2 /* supervisor call (syscall) */ +#define EXCP_ADDR 5 /* addressing exception */ +#define EXCP_EXECUTE_SVC 0xff00000 /* supervisor call via execute insn */ + +static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock* tb) +{ + env->psw.addr = tb->pc; +} + +static inline void cpu_get_tb_cpu_state(CPUState* env, target_ulong *pc, + target_ulong *cs_base, int *flags) +{ + *pc = env->psw.addr; + *cs_base = 0; + *flags = env->psw.mask; // guess +} +#endif diff --git a/target-s390x/exec.h b/target-s390x/exec.h new file mode 100644 index 0000000..5198359 --- /dev/null +++ b/target-s390x/exec.h @@ -0,0 +1,51 @@ +/* + * S/390 execution defines + * + * Copyright (c) 2009 Ulrich Hecht + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ + +#include "dyngen-exec.h" + +register struct CPUS390XState *env asm(AREG0); + +#include "cpu.h" +#include "exec-all.h" + +static inline int cpu_has_work(CPUState *env) +{ + return env->interrupt_request & CPU_INTERRUPT_HARD; // guess +} + +static inline void regs_to_env(void) +{ +} + +static inline void env_to_regs(void) +{ +} + +static inline int cpu_halted(CPUState *env) +{ + if (!env->halted) { + return 0; + } + if (cpu_has_work(env)) { + env->halted = 0; + return 0; + } + return EXCP_HALTED; +} diff --git a/target-s390x/helper.c b/target-s390x/helper.c new file mode 100644 index 0000000..5407c62 --- /dev/null +++ b/target-s390x/helper.c @@ -0,0 +1,81 @@ +/* + * S/390 helpers + * + * Copyright (c) 2009 Ulrich Hecht + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "cpu.h" +#include "exec-all.h" +#include "gdbstub.h" +#include "qemu-common.h" + +CPUS390XState *cpu_s390x_init(const char *cpu_model) +{ + CPUS390XState *env; + static int inited = 0; + + env = qemu_mallocz(sizeof(CPUS390XState)); + cpu_exec_init(env); + if (!inited) { + inited = 1; + s390x_translate_init(); + } + + env->cpu_model_str = cpu_model; + cpu_reset(env); + qemu_init_vcpu(env); + return env; +} + +#if defined(CONFIG_USER_ONLY) + +void do_interrupt (CPUState *env) +{ + env->exception_index = -1; +} + +int cpu_s390x_handle_mmu_fault (CPUState *env, target_ulong address, int rw, + int mmu_idx, int is_softmmu) +{ + //fprintf(stderr,"%s: address 0x%lx rw %d mmu_idx %d is_softmmu %d\n", __FUNCTION__, address, rw, mmu_idx, is_softmmu); + env->exception_index = EXCP_ADDR; + env->__excp_addr = address; /* FIXME: find out how this works on a real machine */ + return 1; +} + +target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) +{ + return addr; +} + +#endif /* CONFIG_USER_ONLY */ + +void cpu_reset(CPUS390XState *env) +{ + if (qemu_loglevel_mask(CPU_LOG_RESET)) { + qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); + log_cpu_state(env, 0); + } + + memset(env, 0, offsetof(CPUS390XState, breakpoints)); + /* FIXME: reset vector? */ + tlb_flush(env, 1); +} diff --git a/target-s390x/helpers.h b/target-s390x/helpers.h new file mode 100644 index 0000000..0ba2086 --- /dev/null +++ b/target-s390x/helpers.h @@ -0,0 +1,128 @@ +#include "def-helper.h" + +DEF_HELPER_1(exception, void, i32) +DEF_HELPER_4(nc, i32, i32, i32, i32, i32) +DEF_HELPER_4(oc, i32, i32, i32, i32, i32) +DEF_HELPER_4(xc, i32, i32, i32, i32, i32) +DEF_HELPER_4(mvc, void, i32, i32, i32, i32) +DEF_HELPER_4(clc, i32, i32, i32, i32, i32) +DEF_HELPER_4(lmg, void, i32, i32, i32, s32) +DEF_HELPER_4(stmg, void, i32, i32, i32, s32) +DEF_HELPER_FLAGS_1(set_cc_s32, TCG_CALL_PURE|TCG_CALL_CONST, i32, s32) +DEF_HELPER_FLAGS_1(set_cc_s64, TCG_CALL_PURE|TCG_CALL_CONST, i32, s64) +DEF_HELPER_FLAGS_1(set_cc_comp_s32, TCG_CALL_PURE|TCG_CALL_CONST, i32, s32) +DEF_HELPER_FLAGS_1(set_cc_comp_s64, TCG_CALL_PURE|TCG_CALL_CONST, i32, s64) +DEF_HELPER_FLAGS_1(set_cc_nz_u32, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32) +DEF_HELPER_FLAGS_1(set_cc_nz_u64, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64) +DEF_HELPER_FLAGS_2(set_cc_icm, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32, i32) +DEF_HELPER_4(brc, void, i32, i32, i64, s32) +DEF_HELPER_3(brctg, void, i64, i64, s32) +DEF_HELPER_3(brct, void, i32, i64, s32) +DEF_HELPER_4(brcl, void, i32, i32, i64, s64) +DEF_HELPER_4(bcr, void, i32, i32, i64, i64) +DEF_HELPER_4(bc, void, i32, i32, i64, i64) +DEF_HELPER_FLAGS_2(cmp_u64, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64, i64) +DEF_HELPER_FLAGS_2(cmp_u32, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32, i32) +DEF_HELPER_FLAGS_2(cmp_s32, TCG_CALL_PURE|TCG_CALL_CONST, i32, s32, s32) +DEF_HELPER_FLAGS_2(cmp_s64, TCG_CALL_PURE|TCG_CALL_CONST, i32, s64, s64) +DEF_HELPER_3(clm, i32, i32, i32, i64) +DEF_HELPER_3(stcm, void, i32, i32, i64) +DEF_HELPER_2(mlg, void, i32, i64) +DEF_HELPER_2(dlg, void, i32, i64) +DEF_HELPER_FLAGS_3(set_cc_add64, TCG_CALL_PURE|TCG_CALL_CONST, i32, s64, s64, s64) +DEF_HELPER_FLAGS_3(set_cc_addu64, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64, i64, i64) +DEF_HELPER_FLAGS_3(set_cc_add32, TCG_CALL_PURE|TCG_CALL_CONST, i32, s32, s32, s32) +DEF_HELPER_FLAGS_3(set_cc_addu32, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32, i32, i32) +DEF_HELPER_FLAGS_3(set_cc_sub64, TCG_CALL_PURE|TCG_CALL_CONST, i32, s64, s64, s64) +DEF_HELPER_FLAGS_3(set_cc_subu64, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64, i64, i64) +DEF_HELPER_FLAGS_3(set_cc_sub32, TCG_CALL_PURE|TCG_CALL_CONST, i32, s32, s32, s32) +DEF_HELPER_FLAGS_3(set_cc_subu32, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32, i32, i32) +DEF_HELPER_3(srst, i32, i32, i32, i32) +DEF_HELPER_3(clst, i32, i32, i32, i32) +DEF_HELPER_3(mvst, i32, i32, i32, i32) +DEF_HELPER_3(csg, i32, i32, i64, i32) +DEF_HELPER_3(cdsg, i32, i32, i64, i32) +DEF_HELPER_3(cs, i32, i32, i64, i32) +DEF_HELPER_4(ex, i32, i32, i64, i64, i64) +DEF_HELPER_FLAGS_2(tm, TCG_CALL_PURE|TCG_CALL_CONST, i32, i32, i32) +DEF_HELPER_FLAGS_2(tmxx, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64, i32) +DEF_HELPER_2(abs_i32, i32, i32, s32) +DEF_HELPER_2(nabs_i32, i32, i32, s32) +DEF_HELPER_2(abs_i64, i32, i32, s64) +DEF_HELPER_2(nabs_i64, i32, i32, s64) +DEF_HELPER_3(stcmh, i32, i32, i64, i32) +DEF_HELPER_3(icmh, i32, i32, i64, i32) +DEF_HELPER_2(ipm, void, i32, i32) +DEF_HELPER_3(addc_u32, i32, i32, i32, i32) +DEF_HELPER_FLAGS_3(set_cc_addc_u64, TCG_CALL_PURE|TCG_CALL_CONST, i32, i64, i64, i64) +DEF_HELPER_3(stam, void, i32, i64, i32) +DEF_HELPER_3(mvcle, i32, i32, i64, i32) +DEF_HELPER_3(clcle, i32, i32, i64, i32) +DEF_HELPER_4(slb, i32, i32, i32, i32, i32) +DEF_HELPER_4(slbg, i32, i32, i32, i64, i64) +DEF_HELPER_2(cefbr, void, i32, s32) +DEF_HELPER_2(cdfbr, void, i32, s32) +DEF_HELPER_2(cxfbr, void, i32, s32) +DEF_HELPER_2(cegbr, void, i32, s64) +DEF_HELPER_2(cdgbr, void, i32, s64) +DEF_HELPER_2(cxgbr, void, i32, s64) +DEF_HELPER_2(adbr, i32, i32, i32) +DEF_HELPER_2(aebr, i32, i32, i32) +DEF_HELPER_2(sebr, i32, i32, i32) +DEF_HELPER_2(sdbr, i32, i32, i32) +DEF_HELPER_2(debr, void, i32, i32) +DEF_HELPER_2(dxbr, void, i32, i32) +DEF_HELPER_2(mdbr, void, i32, i32) +DEF_HELPER_2(mxbr, void, i32, i32) +DEF_HELPER_2(ldebr, void, i32, i32) +DEF_HELPER_2(ldxbr, void, i32, i32) +DEF_HELPER_2(lxdbr, void, i32, i32) +DEF_HELPER_2(ledbr, void, i32, i32) +DEF_HELPER_2(lexbr, void, i32, i32) +DEF_HELPER_2(lpebr, i32, i32, i32) +DEF_HELPER_2(lpdbr, i32, i32, i32) +DEF_HELPER_2(lpxbr, i32, i32, i32) +DEF_HELPER_2(ltebr, i32, i32, i32) +DEF_HELPER_2(ltdbr, i32, i32, i32) +DEF_HELPER_2(ltxbr, i32, i32, i32) +DEF_HELPER_2(lcebr, i32, i32, i32) +DEF_HELPER_2(lcdbr, i32, i32, i32) +DEF_HELPER_2(lcxbr, i32, i32, i32) +DEF_HELPER_2(ceb, i32, i32, i64) +DEF_HELPER_2(aeb, i32, i32, i64) +DEF_HELPER_2(deb, void, i32, i64) +DEF_HELPER_2(meeb, void, i32, i64) +DEF_HELPER_2(cdb, i32, i32, i64) +DEF_HELPER_2(adb, i32, i32, i64) +DEF_HELPER_2(seb, i32, i32, i64) +DEF_HELPER_2(sdb, i32, i32, i64) +DEF_HELPER_2(mdb, void, i32, i64) +DEF_HELPER_2(ddb, void, i32, i64) +DEF_HELPER_FLAGS_2(cebr, TCG_CALL_PURE, i32, i32, i32) +DEF_HELPER_FLAGS_2(cdbr, TCG_CALL_PURE, i32, i32, i32) +DEF_HELPER_FLAGS_2(cxbr, TCG_CALL_PURE, i32, i32, i32) +DEF_HELPER_3(cgebr, i32, i32, i32, i32) +DEF_HELPER_3(cgdbr, i32, i32, i32, i32) +DEF_HELPER_3(cgxbr, i32, i32, i32, i32) +DEF_HELPER_1(lzer, void, i32) +DEF_HELPER_1(lzdr, void, i32) +DEF_HELPER_1(lzxr, void, i32) +DEF_HELPER_3(cfebr, i32, i32, i32, i32) +DEF_HELPER_3(cfdbr, i32, i32, i32, i32) +DEF_HELPER_3(cfxbr, i32, i32, i32, i32) +DEF_HELPER_2(axbr, i32, i32, i32) +DEF_HELPER_2(sxbr, i32, i32, i32) +DEF_HELPER_2(meebr, void, i32, i32) +DEF_HELPER_2(ddbr, void, i32, i32) +DEF_HELPER_3(madb, void, i32, i64, i32) +DEF_HELPER_3(maebr, void, i32, i32, i32) +DEF_HELPER_3(madbr, void, i32, i32, i32) +DEF_HELPER_3(msdbr, void, i32, i32, i32) +DEF_HELPER_2(lxdb, void, i32, i64) +DEF_HELPER_FLAGS_2(tceb, TCG_CALL_PURE, i32, i32, i64) +DEF_HELPER_FLAGS_2(tcdb, TCG_CALL_PURE, i32, i32, i64) +DEF_HELPER_FLAGS_2(tcxb, TCG_CALL_PURE, i32, i32, i64) +DEF_HELPER_2(flogr, i32, i32, i64) +DEF_HELPER_2(sqdbr, void, i32, i32) + +#include "def-helper.h" diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c new file mode 100644 index 0000000..5de4d08 --- /dev/null +++ b/target-s390x/op_helper.c @@ -0,0 +1,1719 @@ +/* + * S/390 helper routines + * + * Copyright (c) 2009 Ulrich Hecht + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ + +#include "exec.h" +#include "helpers.h" +#include <string.h> + +//#define DEBUG_HELPER +#ifdef DEBUG_HELPER +#define HELPER_LOG(x...) qemu_log(x) +#else +#define HELPER_LOG(x...) +#endif + +/* raise an exception */ +void HELPER(exception)(uint32_t excp) +{ + HELPER_LOG("%s: exception %d\n", __FUNCTION__, excp); + env->exception_index = excp; + cpu_loop_exit(); +} + +/* and on array */ +uint32_t HELPER(nc)(uint32_t l, uint32_t b, uint32_t d1, uint32_t d2) +{ + uint64_t dest = env->regs[b >> 4] + d1; + uint64_t src = env->regs[b & 0xf] + d2; + int i; + unsigned char x; + uint32_t cc = 0; + HELPER_LOG("%s l %d b 0x%x d1 %d d2 %d\n", __FUNCTION__, l, b, d1, d2); + for (i = 0; i <= l; i++) { + x = ldub(dest + i) & ldub(src + i); + if (x) cc = 1; + stb(dest + i, x); + } + return cc; +} + +/* xor on array */ +uint32_t HELPER(xc)(uint32_t l, uint32_t b, uint32_t d1, uint32_t d2) +{ + uint64_t dest = env->regs[b >> 4] + d1; + uint64_t src = env->regs[b & 0xf] + d2; + int i; + unsigned char x; + uint32_t cc = 0; + HELPER_LOG("%s l %d b 0x%x d1 %d d2 %d\n", __FUNCTION__, l, b, d1, d2); + for (i = 0; i <= l; i++) { + x = ldub(dest + i) ^ ldub(src + i); + if (x) cc = 1; + stb(dest + i, x); + } + return cc; +} + +/* or on array */ +uint32_t HELPER(oc)(uint32_t l, uint32_t b, uint32_t d1, uint32_t d2) +{ + uint64_t dest = env->regs[b >> 4] + d1; + uint64_t src = env->regs[b & 0xf] + d2; + int i; + unsigned char x; + uint32_t cc = 0; + HELPER_LOG("%s l %d b 0x%x d1 %d d2 %d\n", __FUNCTION__, l, b, d1, d2); + for (i = 0; i <= l; i++) { + x = ldub(dest + i) | ldub(src + i); + if (x) cc = 1; + stb(dest + i, x); + } + return cc; +} + +/* memcopy */ +void HELPER(mvc)(uint32_t l, uint32_t b, uint32_t d1, uint32_t d2) +{ + uint64_t dest = env->regs[b >> 4] + d1; + uint64_t src = env->regs[b & 0xf] + d2; + int i; + HELPER_LOG("%s l %d b 0x%x d1 %d d2 %d\n", __FUNCTION__, l, b, d1, d2); + for (i = 0; i <= l; i++) { + stb(dest + i, ldub(src + i)); + } +} + +/* compare unsigned byte arrays */ +uint32_t HELPER(clc)(uint32_t l, uint32_t b, uint32_t d1, uint32_t d2) +{ + uint64_t s1 = env->regs[b >> 4] + d1; + uint64_t s2 = env->regs[b & 0xf] + d2; + int i; + unsigned char x,y; + uint32_t cc; + HELPER_LOG("%s l %d b 0x%x d1 %d d2 %d\n", __FUNCTION__, l, b, d1, d2); + for (i = 0; i <= l; i++) { + x = ldub(s1 + i); + y = ldub(s2 + i); + HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y); + if (x < y) { + cc = 1; + goto done; + } + else if (x > y) { + cc = 2; + goto done; + } + } + cc = 0; +done: + HELPER_LOG("\n"); + return cc; +} + +/* load multiple 64-bit registers from memory */ +void HELPER(lmg)(uint32_t r1, uint32_t r3, uint32_t b2, int d2) +{ + uint64_t src = env->regs[b2] + d2; + for (;;) { + env->regs[r1] = ldq(src); + src += 8; + if (r1 == r3) break; + r1 = (r1 + 1) & 15; + } +} + +/* store multiple 64-bit registers to memory */ +void HELPER(stmg)(uint32_t r1, uint32_t r3, uint32_t b2, int d2) +{ + uint64_t dest = env->regs[b2] + d2; + HELPER_LOG("%s: r1 %d r3 %d\n", __FUNCTION__, r1, r3); + for (;;) { + HELPER_LOG("storing r%d in 0x%lx\n", r1, dest); + stq(dest, env->regs[r1]); + dest += 8; + if (r1 == r3) break; + r1 = (r1 + 1) & 15; + } +} + +/* set condition code for signed 32-bit arithmetics */ +uint32_t HELPER(set_cc_s32)(int32_t v) +{ + if (v < 0) return 1; + else if (v > 0) return 2; + else return 0; +} + +/* set condition code for signed 64-bit arithmetics */ +uint32_t HELPER(set_cc_s64)(int64_t v) +{ + if (v < 0) return 1; + else if (v > 0) return 2; + else return 0; +} + +/* set condition code for signed 32-bit two's complement */ +uint32_t HELPER(set_cc_comp_s32)(int32_t v) +{ + if ((uint32_t)v == 0x80000000UL) return 3; + else if (v < 0) return 1; + else if (v > 0) return 2; + else return 0; +} + +/* set condition code for signed 64-bit two's complement */ +uint32_t HELPER(set_cc_comp_s64)(int64_t v) +{ + if ((uint64_t)v == 0x8000000000000000ULL) return 3; + else if (v < 0) return 1; + else if (v > 0) return 2; + else return 0; +} + +/* set negative/zero condition code for 32-bit logical op */ +uint32_t HELPER(set_cc_nz_u32)(uint32_t v) +{ + if (v) return 1; + else return 0; +} + +/* set negative/zero condition code for 64-bit logical op */ +uint32_t HELPER(set_cc_nz_u64)(uint64_t v) +{ + if (v) return 1; + else return 0; +} + +/* set condition code for insert character under mask insn */ +uint32_t HELPER(set_cc_icm)(uint32_t mask, uint32_t val) +{ + HELPER_LOG("%s: mask 0x%x val %d\n", __FUNCTION__, mask, val); + uint32_t cc; + if (!val || !mask) cc = 0; + else { + while (mask != 1) { + mask >>= 1; + val >>= 8; + } + if (val & 0x80) cc = 1; + else cc = 2; + } + return cc; +} + +/* relative conditional branch */ +void HELPER(brc)(uint32_t cc, uint32_t mask, uint64_t pc, int32_t offset) +{ + if ( mask & ( 1 << (3 - cc) ) ) { + env->psw.addr = pc + offset; + } + else { + env->psw.addr = pc + 4; + } +} + +/* branch relative on 64-bit count (condition is computed inline, this only + does the branch */ +void HELPER(brctg)(uint64_t flag, uint64_t pc, int32_t offset) +{ + if (flag) { + env->psw.addr = pc + offset; + } + else { + env->psw.addr = pc + 4; + } + HELPER_LOG("%s: pc 0x%lx flag %ld psw.addr 0x%lx\n", __FUNCTION__, pc, flag, + env->psw.addr); +} + +/* branch relative on 32-bit count (condition is computed inline, this only + does the branch */ +void HELPER(brct)(uint32_t flag, uint64_t pc, int32_t offset) +{ + if (flag) { + env->psw.addr = pc + offset; + } + else { + env->psw.addr = pc + 4; + } + HELPER_LOG("%s: pc 0x%lx flag %d psw.addr 0x%lx\n", __FUNCTION__, pc, flag, + env->psw.addr); +} + +/* relative conditional branch with long displacement */ +void HELPER(brcl)(uint32_t cc, uint32_t mask, uint64_t pc, int64_t offset) +{ + if ( mask & ( 1 << (3 - cc) ) ) { + env->psw.addr = pc + offset; + } + else { + env->psw.addr = pc + 6; + } + HELPER_LOG("%s: pc 0x%lx psw.addr 0x%lx\n", __FUNCTION__, pc, env->psw.addr); +} + +/* conditional branch to register (register content is passed as target) */ +void HELPER(bcr)(uint32_t cc, uint32_t mask, uint64_t target, uint64_t pc) +{ + if ( mask & ( 1 << (3 - cc) ) ) { + env->psw.addr = target; + } + else { + env->psw.addr = pc + 2; + } +} + +/* conditional branch to address (address is passed as target) */ +void HELPER(bc)(uint32_t cc, uint32_t mask, uint64_t target, uint64_t pc) +{ + if ( mask & ( 1 << (3 - cc) ) ) { + env->psw.addr = target; + } + else { + env->psw.addr = pc + 4; + } + HELPER_LOG("%s: pc 0x%lx psw.addr 0x%lx r2 0x%lx r5 0x%lx\n", __FUNCTION__, + pc, env->psw.addr, env->regs[2], env->regs[5]); +} + +/* 64-bit unsigned comparison */ +uint32_t HELPER(cmp_u64)(uint64_t o1, uint64_t o2) +{ + if (o1 < o2) return 1; + else if (o1 > o2) return 2; + else return 0; +} + +/* 32-bit unsigned comparison */ +uint32_t HELPER(cmp_u32)(uint32_t o1, uint32_t o2) +{ + HELPER_LOG("%s: o1 0x%x o2 0x%x\n", __FUNCTION__, o1, o2); + if (o1 < o2) return 1; + else if (o1 > o2) return 2; + else return 0; +} + +/* 64-bit signed comparison */ +uint32_t HELPER(cmp_s64)(int64_t o1, int64_t o2) +{ + HELPER_LOG("%s: o1 %ld o2 %ld\n", __FUNCTION__, o1, o2); + if (o1 < o2) return 1; + else if (o1 > o2) return 2; + else return 0; +} + +/* 32-bit signed comparison */ +uint32_t HELPER(cmp_s32)(int32_t o1, int32_t o2) +{ + if (o1 < o2) return 1; + else if (o1 > o2) return 2; + else return 0; +} + +/* compare logical under mask */ +uint32_t HELPER(clm)(uint32_t r1, uint32_t mask, uint64_t addr) +{ + uint8_t r,d; + uint32_t cc; + HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n",__FUNCTION__,r1,mask,addr); + cc = 0; + while (mask) { + if (mask & 8) { + d = ldub(addr); + r = (r1 & 0xff000000UL) >> 24; + HELPER_LOG("mask 0x%x %02x/%02x (0x%lx) ", mask, r, d, addr); + if (r < d) { + cc = 1; + break; + } + else if (r > d) { + cc = 2; + break; + } + addr++; + } + mask = (mask << 1) & 0xf; + r1 <<= 8; + } + HELPER_LOG("\n"); + return cc; +} + +/* store character under mask */ +void HELPER(stcm)(uint32_t r1, uint32_t mask, uint64_t addr) +{ + uint8_t r; + HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n",__FUNCTION__,r1,mask,addr); + while (mask) { + if (mask & 8) { + r = (r1 & 0xff000000UL) >> 24; + stb(addr, r); + HELPER_LOG("mask 0x%x %02x (0x%lx) ", mask, r, addr); + addr++; + } + mask = (mask << 1) & 0xf; + r1 <<= 8; + } + HELPER_LOG("\n"); +} + +/* 64/64 -> 128 unsigned multiplication */ +void HELPER(mlg)(uint32_t r1, uint64_t v2) +{ + __uint128_t res = (__uint128_t)env->regs[r1 + 1]; + res *= (__uint128_t)v2; + env->regs[r1] = (uint64_t)(res >> 64); + env->regs[r1 + 1] = (uint64_t)res; +} + +/* 128 -> 64/64 unsigned division */ +void HELPER(dlg)(uint32_t r1, uint64_t v2) +{ + __uint128_t dividend = (((__uint128_t)env->regs[r1]) << 64) | + (env->regs[r1+1]); + uint64_t divisor = v2; + __uint128_t quotient = dividend / divisor; + env->regs[r1+1] = quotient; + __uint128_t remainder = dividend % divisor; + env->regs[r1] = remainder; + HELPER_LOG("%s: dividend 0x%016lx%016lx divisor 0x%lx quotient 0x%lx rem 0x%lx\n", + __FUNCTION__, (uint64_t)(dividend >> 64), (uint64_t)dividend, divisor, (uint64_t)quotient, + (uint64_t)remainder); +} + +/* set condition code for 64-bit signed addition */ +uint32_t HELPER(set_cc_add64)(int64_t a1, int64_t a2, int64_t ar) +{ + if ((a1 > 0 && a2 > 0 && ar < 0) || (a1 < 0 && a2 < 0 && ar > 0)) { + return 3; /* overflow */ + } + else { + if (ar < 0) return 1; + else if (ar > 0) return 2; + else return 0; + } +} + +/* set condition code for 64-bit unsigned addition */ +uint32_t HELPER(set_cc_addu64)(uint64_t a1, uint64_t a2, uint64_t ar) +{ + if (ar == 0) { + if (a1) return 2; + else return 0; + } + else { + if (ar < a1 || ar < a2) { + return 3; + } + else { + return 1; + } + } +} + +/* set condition code for 32-bit signed addition */ +uint32_t HELPER(set_cc_add32)(int32_t a1, int32_t a2, int32_t ar) +{ + if ((a1 > 0 && a2 > 0 && ar < 0) || (a1 < 0 && a2 < 0 && ar > 0)) { + return 3; /* overflow */ + } + else { + if (ar < 0) return 1; + else if (ar > 0) return 2; + else return 0; + } +} + +/* set condition code for 32-bit unsigned addition */ +uint32_t HELPER(set_cc_addu32)(uint32_t a1, uint32_t a2, uint32_t ar) +{ + if (ar == 0) { + if (a1) return 2; + else return 0; + } + else { + if (ar < a1 || ar < a2) { + return 3; + } + else { + return 1; + } + } +} + +/* set condition code for 64-bit signed subtraction */ +uint32_t HELPER(set_cc_sub64)(int64_t s1, int64_t s2, int64_t sr) +{ + if ((s1 > 0 && s2 < 0 && sr < 0) || (s1 < 0 && s2 > 0 && sr > 0)) { + return 3; /* overflow */ + } + else { + if (sr < 0) return 1; + else if (sr > 0) return 2; + else return 0; + } +} + +/* set condition code for 32-bit signed subtraction */ +uint32_t HELPER(set_cc_sub32)(int32_t s1, int32_t s2, int32_t sr) +{ + if ((s1 > 0 && s2 < 0 && sr < 0) || (s1 < 0 && s2 > 0 && sr > 0)) { + return 3; /* overflow */ + } + else { + if (sr < 0) return 1; + else if (sr > 0) return 2; + else return 0; + } +} + +/* set condition code for 32-bit unsigned subtraction */ +uint32_t HELPER(set_cc_subu32)(uint32_t s1, uint32_t s2, uint32_t sr) +{ + if (sr == 0) return 2; + else { + if (s2 > s1) return 1; + else return 3; + } +} + +/* set condition code for 64-bit unsigned subtraction */ +uint32_t HELPER(set_cc_subu64)(uint64_t s1, uint64_t s2, uint64_t sr) +{ + if (sr == 0) return 2; + else { + if (s2 > s1) return 1; + else return 3; + } +} + +/* search string (c is byte to search, r2 is string, r1 end of string) */ +uint32_t HELPER(srst)(uint32_t c, uint32_t r1, uint32_t r2) +{ + HELPER_LOG("%s: c %d *r1 0x%lx *r2 0x%lx\n", __FUNCTION__, c, env->regs[r1], + env->regs[r2]); + uint64_t i; + uint32_t cc; + for (i = env->regs[r2]; i != env->regs[r1]; i++) { + if (ldub(i) == c) { + env->regs[r1] = i; + cc = 1; + return cc; + } + } + cc = 2; + return cc; +} + +/* unsigned string compare (c is string terminator) */ +uint32_t HELPER(clst)(uint32_t c, uint32_t r1, uint32_t r2) +{ + uint64_t s1 = env->regs[r1]; + uint64_t s2 = env->regs[r2]; + uint8_t v1, v2; + uint32_t cc; + c = c & 0xff; +#ifdef CONFIG_USER_ONLY + if (!c) { + HELPER_LOG("%s: comparing '%s' and '%s'\n", + __FUNCTION__, (char*)s1, (char*)s2); + } +#endif + for (;;) { + v1 = ldub(s1); + v2 = ldub(s2); + if (v1 == c || v2 == c) break; + if (v1 != v2) break; + s1++; s2++; + } + + if (v1 == v2) cc = 0; + else { + if (v1 < v2) cc = 1; + else cc = 2; + env->regs[r1] = s1; + env->regs[r2] = s2; + } + return cc; +} + +/* string copy (c is string terminator) */ +uint32_t HELPER(mvst)(uint32_t c, uint32_t r1, uint32_t r2) +{ + uint64_t dest = env->regs[r1]; + uint64_t src = env->regs[r2]; + uint8_t v; + c = c & 0xff; +#ifdef CONFIG_USER_ONLY + if (!c) { + HELPER_LOG("%s: copying '%s' to 0x%lx\n", __FUNCTION__, (char*)src, dest); + } +#endif + for (;;) { + v = ldub(src); + stb(dest, v); + if (v == c) break; + src++; dest++; + } + env->regs[r1] = dest; + return 1; +} + +/* compare and swap 64-bit */ +uint32_t HELPER(csg)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + /* FIXME: locking? */ + uint32_t cc; + uint64_t v2 = ldq(a2); + if (env->regs[r1] == v2) { + cc = 0; + stq(a2, env->regs[r3]); + } + else { + cc = 1; + env->regs[r1] = v2; + } + return cc; +} + +/* compare double and swap 64-bit */ +uint32_t HELPER(cdsg)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + /* FIXME: locking? */ + uint32_t cc; + __uint128_t v2 = (((__uint128_t)ldq(a2)) << 64) | (__uint128_t)ldq(a2 + 8); + __uint128_t v1 = (((__uint128_t)env->regs[r1]) << 64) | (__uint128_t)env->regs[r1 + 1]; + if (v1 == v2) { + cc = 0; + stq(a2, env->regs[r3]); + stq(a2 + 8, env->regs[r3 + 1]); + } + else { + cc = 1; + env->regs[r1] = v2 >> 64; + env->regs[r1 + 1] = v2 & 0xffffffffffffffffULL; + } + return cc; +} + +/* compare and swap 32-bit */ +uint32_t HELPER(cs)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + /* FIXME: locking? */ + uint32_t cc; + HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __FUNCTION__, r1, a2, r3); + uint32_t v2 = ldl(a2); + if (((uint32_t)env->regs[r1]) == v2) { + cc = 0; + stl(a2, (uint32_t)env->regs[r3]); + } + else { + cc = 1; + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2; + } + return cc; +} + +/* execute instruction + this instruction executes an insn modified with the contents of r1 + it does not change the executed instruction in memory + it does not change the program counter + in other words: tricky... + currently implemented by interpreting the cases it is most commonly used in + */ +uint32_t HELPER(ex)(uint32_t cc, uint64_t v1, uint64_t addr, uint64_t ret) +{ + uint16_t insn = lduw(addr); + HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __FUNCTION__, v1, addr, + insn); + if ((insn & 0xf0ff) == 0xd000) { + uint32_t l, insn2, b, d1, d2; + l = v1 & 0xff; + insn2 = ldl(addr + 2); + b = (((insn2 >> 28) & 0xf) << 4) | ((insn2 >> 12) & 0xf); + d1 = (insn2 >> 16) & 0xfff; + d2 = insn2 & 0xfff; + switch (insn & 0xf00) { + case 0x200: helper_mvc(l, b, d1, d2); return cc; break; + case 0x500: return helper_clc(l, b, d1, d2); break; + case 0x700: return helper_xc(l, b, d1, d2); break; + default: helper_exception(23); break; + } + } + else if ((insn & 0xff00) == 0x0a00) { /* supervisor call */ + HELPER_LOG("%s: svc %ld via execute\n", __FUNCTION__, (insn|v1) & 0xff); + env->psw.addr = ret; + helper_exception(EXCP_EXECUTE_SVC + ((insn | v1) & 0xff)); + } + else { + helper_exception(23); + } + return cc; +} + +/* set condition code for test under mask */ +uint32_t HELPER(tm)(uint32_t val, uint32_t mask) +{ + HELPER_LOG("%s: val 0x%x mask 0x%x\n", __FUNCTION__, val, mask); + uint16_t r = val & mask; + if (r == 0) return 0; + else if (r == mask) return 3; + else return 1; +} + +/* set condition code for test under mask */ +uint32_t HELPER(tmxx)(uint64_t val, uint32_t mask) +{ + uint16_t r = val & mask; + HELPER_LOG("%s: val 0x%lx mask 0x%x r 0x%x\n", __FUNCTION__, val, mask, r); + if (r == 0) return 0; + else if (r == mask) return 3; + else { + while (!(mask & 0x8000)) { + mask <<= 1; + val <<= 1; + } + if (val & 0x8000) return 2; + else return 1; + } +} + +/* absolute value 32-bit */ +uint32_t HELPER(abs_i32)(uint32_t reg, int32_t val) +{ + uint32_t cc; + if (val == 0x80000000UL) cc = 3; + else if (val) cc = 1; + else cc = 0; + + if (val < 0) { + env->regs[reg] = -val; + } + else { + env->regs[reg] = val; + } + return cc; +} + +/* negative absolute value 32-bit */ +uint32_t HELPER(nabs_i32)(uint32_t reg, int32_t val) +{ + uint32_t cc; + if (val) cc = 1; + else cc = 0; + + if (val < 0) { + env->regs[reg] = (env->regs[reg] & 0xffffffff00000000ULL) | val; + } + else { + env->regs[reg] = (env->regs[reg] & 0xffffffff00000000ULL) | ((uint32_t)-val); + } + return cc; +} + +/* absolute value 64-bit */ +uint32_t HELPER(abs_i64)(uint32_t reg, int64_t val) +{ + uint32_t cc; + if (val == 0x8000000000000000ULL) cc = 3; + else if (val) cc = 1; + else cc = 0; + + if (val < 0) { + env->regs[reg] = -val; + } + else { + env->regs[reg] = val; + } + return cc; +} + +/* negative absolute value 64-bit */ +uint32_t HELPER(nabs_i64)(uint32_t reg, int64_t val) +{ + uint32_t cc; + if (val) cc = 1; + else cc = 0; + + if (val < 0) { + env->regs[reg] = val; + } + else { + env->regs[reg] = -val; + } + return cc; +} + +/* add with carry 32-bit unsigned */ +uint32_t HELPER(addc_u32)(uint32_t cc, uint32_t r1, uint32_t v2) +{ + uint32_t res; + uint32_t v1 = env->regs[r1] & 0xffffffffUL; + res = v1 + v2; + if (cc & 2) res++; + + if (res == 0) { + if (v1) cc = 2; + else cc = 0; + } + else { + if (res < v1 || res < v2) + cc = 3; + else + cc = 1; + } + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | res; + return cc; +} + +/* CC for add with carry 64-bit unsigned (isn't this a duplicate of some other CC function?) */ +uint32_t HELPER(set_cc_addc_u64)(uint64_t v1, uint64_t v2, uint64_t res) +{ + uint32_t cc; + if (res == 0) { + if (v1) cc = 2; + else cc = 0; + } + else { + if (res < v1 || res < v2) { + cc = 3; + } + else { + cc = 1; + } + } + return cc; +} + +/* store character under mask high + operates on the upper half of r1 */ +uint32_t HELPER(stcmh)(uint32_t r1, uint64_t address, uint32_t mask) +{ + int pos = 56; /* top of the upper half of r1 */ + + while (mask) { + if (mask & 8) { + stb(address, (env->regs[r1] >> pos) & 0xff); + address++; + } + mask = (mask << 1) & 0xf; + pos -= 8; + } + return 0; +} + +/* insert character under mask high + same as icm, but operates on the upper half of r1 */ +uint32_t HELPER(icmh)(uint32_t r1, uint64_t address, uint32_t mask) +{ + int pos = 56; /* top of the upper half of r1 */ + uint64_t rmask = 0xff00000000000000ULL; + uint8_t val = 0; + int ccd = 0; + uint32_t cc; + + cc = 0; + + while (mask) { + if (mask & 8) { + env->regs[r1] &= ~rmask; + val = ldub(address); + if ((val & 0x80) && !ccd) cc = 1; + ccd = 1; + if (val && cc == 0) cc = 2; + env->regs[r1] |= (uint64_t)val << pos; + address++; + } + mask = (mask << 1) & 0xf; + pos -= 8; + rmask >>= 8; + } + return cc; +} + +/* insert psw mask and condition code into r1 */ +void HELPER(ipm)(uint32_t cc, uint32_t r1) +{ + uint64_t r = env->regs[r1]; + r &= 0xffffffff00ffffffULL; + r |= (cc << 28) | ( (env->psw.mask >> 40) & 0xf ); + env->regs[r1] = r; + HELPER_LOG("%s: cc %d psw.mask 0x%lx r1 0x%lx\n", __FUNCTION__, cc, env->psw.mask, r); +} + +/* store access registers r1 to r3 in memory at a2 */ +void HELPER(stam)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + int i; + for (i = r1; i != ((r3 + 1) & 15); i = (i + 1) & 15) { + stl(a2, env->aregs[i]); + a2 += 4; + } +} + +/* move long extended + another memcopy insn with more bells and whistles */ +uint32_t HELPER(mvcle)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + uint64_t destlen = env->regs[r1 + 1]; + uint64_t dest = env->regs[r1]; + uint64_t srclen = env->regs[r3 + 1]; + uint64_t src = env->regs[r3]; + uint8_t pad = a2 & 0xff; + uint8_t v; + uint32_t cc; + if (destlen == srclen) cc = 0; + else if (destlen < srclen) cc = 1; + else cc = 2; + if (srclen > destlen) srclen = destlen; + for(;destlen && srclen;src++,dest++,destlen--,srclen--) { + v = ldub(src); + stb(dest, v); + } + for(;destlen;dest++,destlen--) { + stb(dest, pad); + } + env->regs[r1 + 1] = destlen; + env->regs[r3 + 1] -= src - env->regs[r3]; /* can't use srclen here, + we trunc'ed it */ + env->regs[r1] = dest; + env->regs[r3] = src; + + return cc; +} + +/* compare logical long extended + memcompare insn with padding */ +uint32_t HELPER(clcle)(uint32_t r1, uint64_t a2, uint32_t r3) +{ + uint64_t destlen = env->regs[r1 + 1]; + uint64_t dest = env->regs[r1]; + uint64_t srclen = env->regs[r3 + 1]; + uint64_t src = env->regs[r3]; + uint8_t pad = a2 & 0xff; + uint8_t v1 = 0,v2 = 0; + uint32_t cc = 0; + if (!(destlen || srclen)) return cc; + if (srclen > destlen) srclen = destlen; + for(;destlen || srclen;src++,dest++,destlen--,srclen--) { + if (srclen) v1 = ldub(src); + else v1 = pad; + if (destlen) v2 = ldub(dest); + else v2 = pad; + if (v1 != v2) break; + } + + env->regs[r1 + 1] = destlen; + env->regs[r3 + 1] -= src - env->regs[r3]; /* can't use srclen here, + we trunc'ed it */ + env->regs[r1] = dest; + env->regs[r3] = src; + + if (v1 < v2) cc = 1; + else if (v1 > v2) cc = 2; + + return cc; +} + +/* subtract unsigned v2 from v1 with borrow */ +uint32_t HELPER(slb)(uint32_t cc, uint32_t r1, uint32_t v1, uint32_t v2) +{ + uint32_t res = v1 + (~v2) + (cc >> 1); + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | res; + if (cc & 2) { /* borrow */ + if (v1) return 1; + else return 0; + } + else { + if (v1) return 3; + else return 2; + } +} + +/* subtract unsigned v2 from v1 with borrow */ +uint32_t HELPER(slbg)(uint32_t cc, uint32_t r1, uint64_t v1, uint64_t v2) +{ + uint64_t res = v1 + (~v2) + (cc >> 1); + env->regs[r1] = res; + if (cc & 2) { /* borrow */ + if (v1) return 1; + else return 0; + } + else { + if (v1) return 3; + else return 2; + } +} + +/* union used for splitting/joining 128-bit floats to/from 64-bit FP regs */ +typedef union { + struct { +#ifdef WORDS_BIGENDIAN + uint64_t h; + uint64_t l; +#else + uint64_t l; + uint64_t h; +#endif + }; + float128 x; +} FP128; + +/* condition codes for binary FP ops */ +static uint32_t set_cc_f32(float32 v1, float32 v2) +{ + if (float32_is_nan(v1) || float32_is_nan(v2)) return 3; + else if (float32_eq(v1, v2, &env->fpu_status)) return 0; + else if (float32_lt(v1, v2, &env->fpu_status)) return 1; + else return 2; +} + +static uint32_t set_cc_f64(float64 v1, float64 v2) +{ + if (float64_is_nan(v1) || float64_is_nan(v2)) return 3; + else if (float64_eq(v1, v2, &env->fpu_status)) return 0; + else if (float64_lt(v1, v2, &env->fpu_status)) return 1; + else return 2; +} + +/* condition codes for unary FP ops */ +static uint32_t set_cc_nz_f32(float32 v) +{ + if (float32_is_nan(v)) return 3; + else if (float32_is_zero(v)) return 0; + else if (float32_is_neg(v)) return 1; + else return 2; +} + +static uint32_t set_cc_nz_f64(float64 v) +{ + if (float64_is_nan(v)) return 3; + else if (float64_is_zero(v)) return 0; + else if (float64_is_neg(v)) return 1; + else return 2; +} + +static uint32_t set_cc_nz_f128(float128 v) +{ + if (float128_is_nan(v)) return 3; + else if (float128_is_zero(v)) return 0; + else if (float128_is_neg(v)) return 1; + else return 2; +} + +/* convert 32-bit int to 64-bit float */ +void HELPER(cdfbr)(uint32_t f1, int32_t v2) +{ + HELPER_LOG("%s: converting %d to f%d\n", __FUNCTION__, v2, f1); + env->fregs[f1].d = int32_to_float64(v2, &env->fpu_status); +} + +/* convert 32-bit int to 128-bit float */ +void HELPER(cxfbr)(uint32_t f1, int32_t v2) +{ + FP128 v1; + v1.x = int32_to_float128(v2, &env->fpu_status); + env->fregs[f1].i = v1.h; + env->fregs[f1 + 2].i = v1.l; +} + +/* convert 64-bit int to 32-bit float */ +void HELPER(cegbr)(uint32_t f1, int64_t v2) +{ + HELPER_LOG("%s: converting %ld to f%d\n", __FUNCTION__, v2, f1); + env->fregs[f1].e = int64_to_float32(v2, &env->fpu_status); +} + +/* convert 64-bit int to 64-bit float */ +void HELPER(cdgbr)(uint32_t f1, int64_t v2) +{ + HELPER_LOG("%s: converting %ld to f%d\n", __FUNCTION__, v2, f1); + env->fregs[f1].d = int64_to_float64(v2, &env->fpu_status); +} + +/* convert 64-bit int to 128-bit float */ +void HELPER(cxgbr)(uint32_t f1, int64_t v2) +{ + FP128 x1; + x1.x = int64_to_float128(v2, &env->fpu_status); + HELPER_LOG("%s: converted %ld to 0x%lx and 0x%lx\n", __FUNCTION__, v2, x1.h, x1.l); + env->fregs[f1].i = x1.h; + env->fregs[f1 + 2].i = x1.l; +} + +/* convert 32-bit int to 32-bit float */ +void HELPER(cefbr)(uint32_t f1, int32_t v2) +{ + env->fregs[f1].e = int32_to_float32(v2, &env->fpu_status); + HELPER_LOG("%s: converting %d to 0x%d in f%d\n", __FUNCTION__, v2, env->fregs[f1].e, f1); +} + +/* 32-bit FP addition RR */ +uint32_t HELPER(aebr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = float32_add(env->fregs[f1].e, env->fregs[f2].e, &env->fpu_status); + HELPER_LOG("%s: adding 0x%d resulting in 0x%d in f%d\n", __FUNCTION__, env->fregs[f2].e, env->fregs[f1].e, f1); + return set_cc_nz_f32(env->fregs[f1].e); +} + +/* 64-bit FP addition RR */ +uint32_t HELPER(adbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_add(env->fregs[f1].d, env->fregs[f2].d, &env->fpu_status); + HELPER_LOG("%s: adding 0x%ld resulting in 0x%ld in f%d\n", __FUNCTION__, env->fregs[f2].d, env->fregs[f1].d, f1); + return set_cc_nz_f64(env->fregs[f1].d); +} + +/* 32-bit FP subtraction RR */ +uint32_t HELPER(sebr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = float32_sub(env->fregs[f1].e, env->fregs[f2].e, &env->fpu_status); + HELPER_LOG("%s: adding 0x%d resulting in 0x%d in f%d\n", __FUNCTION__, env->fregs[f2].e, env->fregs[f1].e, f1); + return set_cc_nz_f32(env->fregs[f1].e); +} + +/* 64-bit FP subtraction RR */ +uint32_t HELPER(sdbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_sub(env->fregs[f1].d, env->fregs[f2].d, &env->fpu_status); + HELPER_LOG("%s: subtracting 0x%ld resulting in 0x%ld in f%d\n", __FUNCTION__, env->fregs[f2].d, env->fregs[f1].d, f1); + return set_cc_nz_f64(env->fregs[f1].d); +} + +/* 32-bit FP division RR */ +void HELPER(debr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = float32_div(env->fregs[f1].e, env->fregs[f2].e, &env->fpu_status); +} + +/* 128-bit FP division RR */ +void HELPER(dxbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + FP128 res; + res.x = float128_div(v1.x, v2.x, &env->fpu_status); + env->fregs[f1].i = res.h; + env->fregs[f1 + 2].i = res.l; +} + +/* 64-bit FP multiplication RR */ +void HELPER(mdbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_mul(env->fregs[f1].d, env->fregs[f2].d, &env->fpu_status); +} + +/* 128-bit FP multiplication RR */ +void HELPER(mxbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + FP128 res; + res.x = float128_mul(v1.x, v2.x, &env->fpu_status); + //HELPER_LOG("%s: 0x%ld * 0x%ld = 0x%ld\n", __FUNCTION__, v1.x, v2.x, res.x); + env->fregs[f1].i = res.h; + env->fregs[f1 + 2].i = res.l; +} + +/* convert 32-bit float to 64-bit float */ +void HELPER(ldebr)(uint32_t r1, uint32_t r2) +{ + env->fregs[r1].d = float32_to_float64(env->fregs[r2].e, &env->fpu_status); +} + +/* convert 128-bit float to 64-bit float */ +void HELPER(ldxbr)(uint32_t f1, uint32_t f2) +{ + FP128 x2; + x2.h = env->fregs[f2].i; + x2.l = env->fregs[f2 + 2].i; + //HELPER_LOG("%s: converted %llf ", __FUNCTION__, x2.x); + env->fregs[f1].d = float128_to_float64(x2.x, &env->fpu_status); + HELPER_LOG("%s: to 0x%ld\n", __FUNCTION__, env->fregs[f1].d); +} + +/* convert 64-bit float to 128-bit float */ +void HELPER(lxdbr)(uint32_t f1, uint32_t f2) +{ + FP128 res; + res.x = float64_to_float128(env->fregs[f2].d, &env->fpu_status); + env->fregs[f1].i = res.h; + env->fregs[f1 + 2].i = res.l; +} + +/* convert 64-bit float to 32-bit float */ +void HELPER(ledbr)(uint32_t f1, uint32_t f2) +{ + float64 d2 = env->fregs[f2].d; + env->fregs[f1].e = float64_to_float32(d2, &env->fpu_status); +} + +/* convert 128-bit float to 32-bit float */ +void HELPER(lexbr)(uint32_t f1, uint32_t f2) +{ + FP128 x2; + x2.h = env->fregs[f2].i; + x2.l = env->fregs[f2 + 2].i; + //HELPER_LOG("%s: converted %llf ", __FUNCTION__, x2.x); + env->fregs[f1].e = float128_to_float32(x2.x, &env->fpu_status); + HELPER_LOG("%s: to 0x%d\n", __FUNCTION__, env->fregs[f1].e); +} + +/* absolute value of 32-bit float */ +uint32_t HELPER(lpebr)(uint32_t f1, uint32_t f2) +{ + float32 v1; + float32 v2 = env->fregs[f2].d; + if (float32_is_neg(v2)) { + v1 = float32_abs(v2); + } + else { + v1 = v2; + } + env->fregs[f1].d = v1; + return set_cc_nz_f32(v1); +} + +/* absolute value of 64-bit float */ +uint32_t HELPER(lpdbr)(uint32_t f1, uint32_t f2) +{ + float64 v1; + float64 v2 = env->fregs[f2].d; + if (float64_is_neg(v2)) { + v1 = float64_abs(v2); + } + else { + v1 = v2; + } + env->fregs[f1].d = v1; + return set_cc_nz_f64(v1); +} + +/* absolute value of 128-bit float */ +uint32_t HELPER(lpxbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + if (float128_is_neg(v2.x)) { + v1.x = float128_abs(v2.x); + } + else { + v1 = v2; + } + env->fregs[f1].i = v1.h; + env->fregs[f1 + 2].i = v1.l; + return set_cc_nz_f128(v1.x); +} + +/* load and test 64-bit float */ +uint32_t HELPER(ltdbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = env->fregs[f2].d; + return set_cc_nz_f64(env->fregs[f1].d); +} + +/* load and test 32-bit float */ +uint32_t HELPER(ltebr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = env->fregs[f2].e; + return set_cc_nz_f32(env->fregs[f1].e); +} + +/* load and test 128-bit float */ +uint32_t HELPER(ltxbr)(uint32_t f1, uint32_t f2) +{ + FP128 x; + x.h = env->fregs[f2].i; + x.l = env->fregs[f2 + 2].i; + env->fregs[f1].i = x.h; + env->fregs[f1 + 2].i = x.l; + return set_cc_nz_f128(x.x); +} + +/* negative absolute of 32-bit float */ +uint32_t HELPER(lcebr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = float32_sub(float32_zero, env->fregs[f2].e, &env->fpu_status); + return set_cc_nz_f32(env->fregs[f1].e); +} + +/* negative absolute of 64-bit float */ +uint32_t HELPER(lcdbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_sub(float64_zero, env->fregs[f2].d, &env->fpu_status); + return set_cc_nz_f64(env->fregs[f1].d); +} + +/* convert 64-bit float to 128-bit float */ +uint32_t HELPER(lcxbr)(uint32_t f1, uint32_t f2) +{ + FP128 x1, x2; + x2.h = env->fregs[f2].i; + x2.l = env->fregs[f2 + 2].i; + x1.x = float128_sub(float64_to_float128(float64_zero, &env->fpu_status), x2.x, &env->fpu_status); + env->fregs[f1].i = x1.h; + env->fregs[f1 + 2].i = x1.l; + return set_cc_nz_f128(x1.x); +} + +/* 32-bit FP compare RM */ +uint32_t HELPER(ceb)(uint32_t f1, uint64_t a2) +{ + float32 v1 = env->fregs[f1].e; + union { + float32 e; + uint32_t i; + } v2; + v2.i = ldl(a2); + HELPER_LOG("%s: comparing 0x%d from f%d and 0x%d\n", __FUNCTION__, v1, f1, v2.e); + return set_cc_f32(v1, v2.e); +} + +/* 32-bit FP addition RM */ +uint32_t HELPER(aeb)(uint32_t f1, uint64_t a2) +{ + float32 v1 = env->fregs[f1].e; + union { + float32 e; + uint32_t i; + } v2; + v2.i = ldl(a2); + HELPER_LOG("%s: adding 0x%d from f%d and 0x%d\n", __FUNCTION__, v1, f1, v2.e); + env->fregs[f1].e = float32_add(v1, v2.e, &env->fpu_status); + return set_cc_nz_f32(env->fregs[f1].e); +} + +/* 32-bit FP division RM */ +void HELPER(deb)(uint32_t f1, uint64_t a2) +{ + float32 v1 = env->fregs[f1].e; + union { + float32 e; + uint32_t i; + } v2; + v2.i = ldl(a2); + HELPER_LOG("%s: dividing 0x%d from f%d by 0x%d\n", __FUNCTION__, v1, f1, v2.e); + env->fregs[f1].e = float32_div(v1, v2.e, &env->fpu_status); +} + +/* 32-bit FP multiplication RM */ +void HELPER(meeb)(uint32_t f1, uint64_t a2) +{ + float32 v1 = env->fregs[f1].e; + union { + float32 e; + uint32_t i; + } v2; + v2.i = ldl(a2); + HELPER_LOG("%s: multiplying 0x%d from f%d and 0x%d\n", __FUNCTION__, v1, f1, v2.e); + env->fregs[f1].e = float32_mul(v1, v2.e, &env->fpu_status); +} + +/* 32-bit FP compare RR */ +uint32_t HELPER(cebr)(uint32_t f1, uint32_t f2) +{ + float32 v1 = env->fregs[f1].e; + float32 v2 = env->fregs[f2].e;; + HELPER_LOG("%s: comparing 0x%d from f%d and 0x%d\n", __FUNCTION__, v1, f1, v2); + return set_cc_f32(v1, v2); +} + +/* 64-bit FP compare RR */ +uint32_t HELPER(cdbr)(uint32_t f1, uint32_t f2) +{ + float64 v1 = env->fregs[f1].d; + float64 v2 = env->fregs[f2].d;; + HELPER_LOG("%s: comparing 0x%ld from f%d and 0x%ld\n", __FUNCTION__, v1, f1, v2); + return set_cc_f64(v1, v2); +} + +/* 128-bit FP compare RR */ +uint32_t HELPER(cxbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + //HELPER_LOG("%s: comparing %llf from f%d and %llf\n", __FUNCTION__, v1.x, f1, v2.x); + if (float128_is_nan(v1.x) || float128_is_nan(v2.x)) return 3; + else if (float128_eq(v1.x, v2.x, &env->fpu_status)) return 0; + else if (float128_lt(v1.x, v2.x, &env->fpu_status)) return 1; + else return 2; +} + +/* 64-bit FP compare RM */ +uint32_t HELPER(cdb)(uint32_t f1, uint64_t a2) +{ + float64 v1 = env->fregs[f1].d; + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + HELPER_LOG("%s: comparing 0x%ld from f%d and 0x%lx\n", __FUNCTION__, v1, f1, v2.d); + return set_cc_f64(v1, v2.d); +} + +/* 64-bit FP addition RM */ +uint32_t HELPER(adb)(uint32_t f1, uint64_t a2) +{ + float64 v1 = env->fregs[f1].d; + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + HELPER_LOG("%s: adding 0x%lx from f%d and 0x%lx\n", __FUNCTION__, v1, f1, v2.d); + env->fregs[f1].d = v1 = float64_add(v1, v2.d, &env->fpu_status); + return set_cc_nz_f64(v1); +} + +/* 32-bit FP subtraction RM */ +uint32_t HELPER(seb)(uint32_t f1, uint64_t a2) +{ + float32 v1 = env->fregs[f1].e; + union { + float32 e; + uint32_t i; + } v2; + v2.i = ldl(a2); + env->fregs[f1].e = v1 = float32_sub(v1, v2.e, &env->fpu_status); + return set_cc_nz_f32(v1); +} + +/* 64-bit FP subtraction RM */ +uint32_t HELPER(sdb)(uint32_t f1, uint64_t a2) +{ + float64 v1 = env->fregs[f1].d; + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + env->fregs[f1].d = v1 = float64_sub(v1, v2.d, &env->fpu_status); + return set_cc_nz_f64(v1); +} + +/* 64-bit FP multiplication RM */ +void HELPER(mdb)(uint32_t f1, uint64_t a2) +{ + float64 v1 = env->fregs[f1].d; + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + HELPER_LOG("%s: multiplying 0x%lx from f%d and 0x%ld\n", __FUNCTION__, v1, f1, v2.d); + env->fregs[f1].d = float64_mul(v1, v2.d, &env->fpu_status); +} + +/* 64-bit FP division RM */ +void HELPER(ddb)(uint32_t f1, uint64_t a2) +{ + float64 v1 = env->fregs[f1].d; + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + HELPER_LOG("%s: dividing 0x%lx from f%d by 0x%ld\n", __FUNCTION__, v1, f1, v2.d); + env->fregs[f1].d = float64_div(v1, v2.d, &env->fpu_status); +} + +static void set_round_mode(int m3) +{ + switch (m3) { + case 0: break; /* current mode */ + case 1: /* biased round no nearest */ + case 4: /* round to nearest */ + set_float_rounding_mode(float_round_nearest_even, &env->fpu_status); + break; + case 5: /* round to zero */ + set_float_rounding_mode(float_round_to_zero, &env->fpu_status); + break; + case 6: /* round to +inf */ + set_float_rounding_mode(float_round_up, &env->fpu_status); + break; + case 7: /* round to -inf */ + set_float_rounding_mode(float_round_down, &env->fpu_status); + break; + } +} + +/* convert 32-bit float to 64-bit int */ +uint32_t HELPER(cgebr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + float32 v2 = env->fregs[f2].e; + set_round_mode(m3); + env->regs[r1] = float32_to_int64(v2, &env->fpu_status); + return set_cc_nz_f32(v2); +} + +/* convert 64-bit float to 64-bit int */ +uint32_t HELPER(cgdbr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + float64 v2 = env->fregs[f2].d; + set_round_mode(m3); + env->regs[r1] = float64_to_int64(v2, &env->fpu_status); + return set_cc_nz_f64(v2); +} + +/* convert 128-bit float to 64-bit int */ +uint32_t HELPER(cgxbr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + set_round_mode(m3); + env->regs[r1] = float128_to_int64(v2.x, &env->fpu_status); + if (float128_is_nan(v2.x)) return 3; + else if (float128_is_zero(v2.x)) return 0; + else if (float128_is_neg(v2.x)) return 1; + else return 2; +} + +/* convert 32-bit float to 32-bit int */ +uint32_t HELPER(cfebr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + float32 v2 = env->fregs[f2].e; + set_round_mode(m3); + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | float32_to_int32(v2, &env->fpu_status); + return set_cc_nz_f32(v2); +} + +/* convert 64-bit float to 32-bit int */ +uint32_t HELPER(cfdbr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + float64 v2 = env->fregs[f2].d; + set_round_mode(m3); + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | float64_to_int32(v2, &env->fpu_status); + return set_cc_nz_f64(v2); +} + +/* convert 128-bit float to 32-bit int */ +uint32_t HELPER(cfxbr)(uint32_t r1, uint32_t f2, uint32_t m3) +{ + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | float128_to_int32(v2.x, &env->fpu_status); + return set_cc_nz_f128(v2.x); +} + +/* load 32-bit FP zero */ +void HELPER(lzer)(uint32_t f1) +{ + env->fregs[f1].e = float32_zero; +} + +/* load 64-bit FP zero */ +void HELPER(lzdr)(uint32_t f1) +{ + env->fregs[f1].d = float64_zero; +} + +/* load 128-bit FP zero */ +void HELPER(lzxr)(uint32_t f1) +{ + FP128 x; + x.x = float64_to_float128(float64_zero, &env->fpu_status); + env->fregs[f1].i = x.h; + env->fregs[f1 + 1].i = x.l; +} + +/* 128-bit FP subtraction RR */ +uint32_t HELPER(sxbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + FP128 res; + res.x = float128_sub(v1.x, v2.x, &env->fpu_status); + env->fregs[f1].i = res.h; + env->fregs[f1 + 2].i = res.l; + return set_cc_nz_f128(res.x); +} + +/* 128-bit FP addition RR */ +uint32_t HELPER(axbr)(uint32_t f1, uint32_t f2) +{ + FP128 v1; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + FP128 v2; + v2.h = env->fregs[f2].i; + v2.l = env->fregs[f2 + 2].i; + FP128 res; + res.x = float128_add(v1.x, v2.x, &env->fpu_status); + env->fregs[f1].i = res.h; + env->fregs[f1 + 2].i = res.l; + return set_cc_nz_f128(res.x); +} + +/* 32-bit FP multiplication RR */ +void HELPER(meebr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].e = float32_mul(env->fregs[f1].e, env->fregs[f2].e, &env->fpu_status); +} + +/* 64-bit FP division RR */ +void HELPER(ddbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_div(env->fregs[f1].d, env->fregs[f2].d, &env->fpu_status); +} + +/* 64-bit FP multiply and add RM */ +void HELPER(madb)(uint32_t f1, uint64_t a2, uint32_t f3) +{ + HELPER_LOG("%s: f1 %d a2 0x%lx f3 %d\n", __FUNCTION__, f1, a2, f3); + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + env->fregs[f1].d = float64_add(env->fregs[f1].d, float64_mul(v2.d, env->fregs[f3].d, &env->fpu_status), &env->fpu_status); +} + +/* 64-bit FP multiply and add RR */ +void HELPER(madbr)(uint32_t f1, uint32_t f3, uint32_t f2) +{ + HELPER_LOG("%s: f1 %d f2 %d f3 %d\n", __FUNCTION__, f1, f2, f3); + env->fregs[f1].d = float64_add(float64_mul(env->fregs[f2].d, env->fregs[f3].d, &env->fpu_status), env->fregs[f1].d, &env->fpu_status); +} + +/* 64-bit FP multiply and subtract RR */ +void HELPER(msdbr)(uint32_t f1, uint32_t f3, uint32_t f2) +{ + HELPER_LOG("%s: f1 %d f2 %d f3 %d\n", __FUNCTION__, f1, f2, f3); + env->fregs[f1].d = float64_sub(float64_mul(env->fregs[f2].d, env->fregs[f3].d, &env->fpu_status), env->fregs[f1].d, &env->fpu_status); +} + +/* 32-bit FP multiply and add RR */ +void HELPER(maebr)(uint32_t f1, uint32_t f3, uint32_t f2) +{ + env->fregs[f1].e = float32_add(env->fregs[f1].e, float32_mul(env->fregs[f2].e, env->fregs[f3].e, &env->fpu_status), &env->fpu_status); +} + +/* convert 64-bit float to 128-bit float */ +void HELPER(lxdb)(uint32_t f1, uint64_t a2) +{ + union { + float64 d; + uint64_t i; + } v2; + v2.i = ldq(a2); + FP128 v1; + v1.x = float64_to_float128(v2.d, &env->fpu_status); + env->fregs[f1].i = v1.h; + env->fregs[f1 + 2].i = v1.l; +} + +/* test data class 32-bit */ +uint32_t HELPER(tceb)(uint32_t f1, uint64_t m2) +{ + float32 v1 = env->fregs[f1].e; + int neg = float32_is_neg(v1); + uint32_t cc = 0; + HELPER_LOG("%s: v1 0x%lx m2 0x%lx neg %d\n", __FUNCTION__, v1, m2, neg); + if (float32_is_zero(v1) && (m2 & (1 << (11-neg)))) cc = 1; + else if (float32_is_infinity(v1) && (m2 & (1 << (5-neg)))) cc = 1; + else if (float32_is_nan(v1) && (m2 & (1 << (3-neg)))) cc = 1; + else if (float32_is_signaling_nan(v1) && (m2 & (1 << (1-neg)))) cc = 1; + else /* assume normalized number */ if (m2 & (1 << (9-neg))) cc = 1; + /* FIXME: denormalized? */ + return cc; +} + +/* test data class 64-bit */ +uint32_t HELPER(tcdb)(uint32_t f1, uint64_t m2) +{ + float64 v1 = env->fregs[f1].d; + int neg = float64_is_neg(v1); + uint32_t cc = 0; + HELPER_LOG("%s: v1 0x%lx m2 0x%lx neg %d\n", __FUNCTION__, v1, m2, neg); + if (float64_is_zero(v1) && (m2 & (1 << (11-neg)))) cc = 1; + else if (float64_is_infinity(v1) && (m2 & (1 << (5-neg)))) cc = 1; + else if (float64_is_nan(v1) && (m2 & (1 << (3-neg)))) cc = 1; + else if (float64_is_signaling_nan(v1) && (m2 & (1 << (1-neg)))) cc = 1; + else /* assume normalized number */ if (m2 & (1 << (9-neg))) cc = 1; + /* FIXME: denormalized? */ + return cc; +} + +/* test data class 128-bit */ +uint32_t HELPER(tcxb)(uint32_t f1, uint64_t m2) +{ + FP128 v1; + uint32_t cc = 0; + v1.h = env->fregs[f1].i; + v1.l = env->fregs[f1 + 2].i; + + int neg = float128_is_neg(v1.x); + if (float128_is_zero(v1.x) && (m2 & (1 << (11-neg)))) cc = 1; + else if (float128_is_infinity(v1.x) && (m2 & (1 << (5-neg)))) cc = 1; + else if (float128_is_nan(v1.x) && (m2 & (1 << (3-neg)))) cc = 1; + else if (float128_is_signaling_nan(v1.x) && (m2 & (1 << (1-neg)))) cc = 1; + else /* assume normalized number */ if (m2 & (1 << (9-neg))) cc = 1; + /* FIXME: denormalized? */ + return cc; +} + +/* find leftmost one */ +uint32_t HELPER(flogr)(uint32_t r1, uint64_t v2) +{ + uint64_t res = 0; + uint64_t ov2 = v2; + while (!(v2 & 0x8000000000000000ULL) && v2) { + v2 <<= 1; + res++; + } + if (!v2) { + env->regs[r1] = 64; + env->regs[r1 + 1] = 0; + return 0; + } + else { + env->regs[r1] = res; + env->regs[r1 + 1] = ov2 & ~(0x8000000000000000ULL >> res); + return 2; + } +} + +/* square root 64-bit RR */ +void HELPER(sqdbr)(uint32_t f1, uint32_t f2) +{ + env->fregs[f1].d = float64_sqrt(env->fregs[f2].d, &env->fpu_status); +} diff --git a/target-s390x/translate.c b/target-s390x/translate.c new file mode 100644 index 0000000..e477389 --- /dev/null +++ b/target-s390x/translate.c @@ -0,0 +1,2479 @@ +/* + * S/390 translation + * + * Copyright (c) 2009 Ulrich Hecht + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + */ +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <inttypes.h> + +#define S390X_DEBUG_DISAS +#ifdef S390X_DEBUG_DISAS +# define LOG_DISAS(...) qemu_log(__VA_ARGS__) +#else +# define LOG_DISAS(...) do { } while (0) +#endif + +#include "cpu.h" +#include "exec-all.h" +#include "disas.h" +#include "tcg-op.h" +#include "qemu-log.h" + +/* global register indexes */ +static TCGv_ptr cpu_env; + +#include "gen-icount.h" +#include "helpers.h" +#define GEN_HELPER 1 +#include "helpers.h" + +typedef struct DisasContext DisasContext; +struct DisasContext { + uint64_t pc; + int is_jmp; + CPUS390XState *env; +}; + +#define DISAS_EXCP 4 +#define DISAS_SVC 5 + +void cpu_dump_state(CPUState *env, FILE *f, + int (*cpu_fprintf)(FILE *f, const char *fmt, ...), + int flags) +{ + int i; + for (i = 0; i < 16; i++) { + cpu_fprintf(f, "R%02d=%016lx", i, env->regs[i]); + if ((i % 4) == 3) cpu_fprintf(f, "\n"); + else cpu_fprintf(f, " "); + } + for (i = 0; i < 16; i++) { + cpu_fprintf(f, "F%02d=%016lx", i, env->fregs[i]); + if ((i % 4) == 3) cpu_fprintf(f, "\n"); + else cpu_fprintf(f, " "); + } + cpu_fprintf(f, "PSW=mask %016lx addr %016lx cc %02x\n", env->psw.mask, env->psw.addr, env->cc); +} + +#define TCGREGS + +static TCGv global_cc; +#ifdef TCGREGS +/* registers stored in TCG variables enhance performance */ +static TCGv tcgregs[16]; +static TCGv tcgregs32[16]; +#endif +static TCGv cc; +static TCGv psw_addr; + +void s390x_translate_init(void) +{ + cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); + global_cc = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, cc), "global_cc"); +#ifdef TCGREGS + int i; + char rn[4]; + for (i = 0; i < 16; i++) { + sprintf(rn, "R%d", i); + tcgregs[i] = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUState, regs[i]), strdup(rn)); + sprintf(rn, "r%d", i); + tcgregs32[i] = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, regs[i]) +#ifdef WORDS_BIGENDIAN + + 4 +#endif + , strdup(rn)); + } +#endif + psw_addr = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUState, psw.addr), "psw_addr"); +} + +#ifdef TCGREGS +static inline void sync_reg64(int reg) +{ + tcg_gen_sync_i64(tcgregs[reg]); +} +static inline void sync_reg32(int reg) +{ + tcg_gen_sync_i32(tcgregs32[reg]); +} +#endif + +static TCGv load_reg(int reg) +{ + TCGv r = tcg_temp_new_i64(); +#ifdef TCGREGS + sync_reg32(reg); + tcg_gen_mov_i64(r, tcgregs[reg]); + return r; +#else + tcg_gen_ld_i64(r, cpu_env, offsetof(CPUState, regs[reg])); + return r; +#endif +} + +static TCGv load_freg(int reg) +{ + TCGv r = tcg_temp_new_i64(); + tcg_gen_ld_i64(r, cpu_env, offsetof(CPUState, fregs[reg].d)); + return r; +} + +static TCGv load_freg32(int reg) +{ + TCGv r = tcg_temp_new_i32(); + tcg_gen_ld_i32(r, cpu_env, offsetof(CPUState, fregs[reg].e)); + return r; +} + +static void load_reg32_var(TCGv r, int reg) +{ +#ifdef TCGREGS + sync_reg64(reg); + tcg_gen_mov_i32(r, tcgregs32[reg]); +#else +#ifdef WORDS_BIGENDIAN + tcg_gen_ld_i32(r, cpu_env, offsetof(CPUState, regs[reg]) + 4); +#else + tcg_gen_ld_i32(r, cpu_env, offsetof(CPUState, regs[reg])); +#endif +#endif +} + +static TCGv load_reg32(int reg) +{ + TCGv r = tcg_temp_new_i32(); + load_reg32_var(r, reg); + return r; +} + +static void store_reg(int reg, TCGv v) +{ +#ifdef TCGREGS + sync_reg32(reg); + tcg_gen_mov_i64(tcgregs[reg], v); +#else + tcg_gen_st_i64(v, cpu_env, offsetof(CPUState, regs[reg])); +#endif +} + +static void store_freg(int reg, TCGv v) +{ + tcg_gen_st_i64(v, cpu_env, offsetof(CPUState, fregs[reg].d)); +} + +static void store_reg32(int reg, TCGv v) +{ +#ifdef TCGREGS + sync_reg64(reg); + tcg_gen_mov_i32(tcgregs32[reg], v); +#else +#ifdef WORDS_BIGENDIAN + tcg_gen_st_i32(v, cpu_env, offsetof(CPUState, regs[reg]) + 4); +#else + tcg_gen_st_i32(v, cpu_env, offsetof(CPUState, regs[reg])); +#endif +#endif +} + +static void store_reg8(int reg, TCGv v) +{ +#ifdef TCGREGS + TCGv tmp = tcg_temp_new_i32(); + sync_reg64(reg); + tcg_gen_andi_i32(tmp, tcgregs32[reg], 0xffffff00UL); + tcg_gen_or_i32(tcgregs32[reg], tmp, v); + tcg_temp_free(tmp); +#else +#ifdef WORDS_BIGENDIAN + tcg_gen_st8_i32(v, cpu_env, offsetof(CPUState, regs[reg]) + 7); +#else + tcg_gen_st8_i32(v, cpu_env, offsetof(CPUState, regs[reg])); +#endif +#endif +} + +static void store_freg32(int reg, TCGv v) +{ + tcg_gen_st_i32(v, cpu_env, offsetof(CPUState, fregs[reg].e)); +} + +static void gen_illegal_opcode(DisasContext *s) +{ + TCGv tmp = tcg_temp_new_i64(); + tcg_gen_movi_i64(tmp, 42); + gen_helper_exception(tmp); + s->is_jmp = DISAS_EXCP; +} + +#define DEBUGINSN LOG_DISAS("insn: 0x%lx\n", insn); + +static TCGv get_address(int x2, int b2, int d2) +{ + TCGv tmp = 0,tmp2 = 0; + if (d2) tmp = tcg_const_i64(d2); + if (x2) { + if (d2) { + tmp2 = load_reg(x2); + tcg_gen_add_i64(tmp, tmp, tmp2); + tcg_temp_free(tmp2); + } + else { + tmp = load_reg(x2); + } + } + if (b2) { + if (d2 || x2) { + tmp2 = load_reg(b2); + tcg_gen_add_i64(tmp, tmp, tmp2); + tcg_temp_free(tmp2); + } + else { + tmp = load_reg(b2); + } + } + + if (!(d2 || x2 || b2)) tmp = tcg_const_i64(0); + + return tmp; +} + +static inline void set_cc_nz_u32(TCGv val) +{ + gen_helper_set_cc_nz_u32(cc, val); +} + +static inline void set_cc_nz_u64(TCGv val) +{ + gen_helper_set_cc_nz_u64(cc, val); +} + +static inline void set_cc_s32(TCGv val) +{ + gen_helper_set_cc_s32(cc, val); +} + +static inline void set_cc_s64(TCGv val) +{ + gen_helper_set_cc_s64(cc, val); +} + +static inline void cmp_s32(TCGv v1, TCGv v2) +{ + gen_helper_cmp_s32(cc, v1, v2); +} + +static inline void cmp_u32(TCGv v1, TCGv v2) +{ + gen_helper_cmp_u32(cc, v1, v2); +} + +/* this is a hysterical raisin */ +static inline void cmp_s32c(TCGv v1, int32_t v2) +{ + gen_helper_cmp_s32(cc, v1, tcg_const_i32(v2)); +} +static inline void cmp_u32c(TCGv v1, uint32_t v2) +{ + gen_helper_cmp_u32(cc, v1, tcg_const_i32(v2)); +} + + +static inline void cmp_s64(TCGv v1, TCGv v2) +{ + gen_helper_cmp_s64(cc, v1, v2); +} + +static inline void cmp_u64(TCGv v1, TCGv v2) +{ + gen_helper_cmp_u64(cc, v1, v2); +} + +/* see cmp_[su]32c() */ +static inline void cmp_s64c(TCGv v1, int64_t v2) +{ + gen_helper_cmp_s64(cc, v1, tcg_const_i64(v2)); +} +static inline void cmp_u64c(TCGv v1, uint64_t v2) +{ + gen_helper_cmp_u64(cc, v1, tcg_const_i64(v2)); +} + +static void gen_bcr(uint32_t mask, int tr, uint64_t offset) +{ + TCGv target; + if (mask == 0xf) { /* unconditional */ + target = load_reg(tr); + tcg_gen_mov_i64(psw_addr, target); + } + else { + gen_helper_bcr(cc, tcg_const_i32(mask), (target = load_reg(tr)), tcg_const_i64(offset)); + } + tcg_temp_free(target); +} + +static void gen_brc(uint32_t mask, uint64_t pc, int32_t offset) +{ + if (mask == 0xf) { /* unconditional */ + tcg_gen_movi_i64(psw_addr, pc + offset); + } + else { + gen_helper_brc(cc, tcg_const_i32(mask), tcg_const_i64(pc), tcg_const_i32(offset)); + } +} + +static void gen_set_cc_add64(TCGv v1, TCGv v2, TCGv vr) +{ + gen_helper_set_cc_add64(cc, v1, v2, vr); +} + +static void disas_e3(DisasContext* s, int op, int r1, int x2, int b2, int d2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + + LOG_DISAS("disas_e3: op 0x%x r1 %d x2 %d b2 %d d2 %d\n", op, r1, x2, b2, d2); + tmp = get_address(x2, b2, d2); + switch (op) { + case 0x2: /* LTG R1,D2(X2,B2) [RXY] */ + case 0x4: /* lg r1,d2(x2,b2) */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + store_reg(r1, tmp2); + if (op == 0x2) set_cc_s64(tmp2); + break; + case 0x12: /* LT R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + store_reg32(r1, tmp2); + set_cc_s32(tmp2); + break; + case 0xc: /* MSG R1,D2(X2,B2) [RXY] */ + case 0x1c: /* MSGF R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + if (op == 0xc) { + tcg_gen_qemu_ld64(tmp2, tmp, 1); + } + else { + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + tmp = load_reg(r1); + tcg_gen_mul_i64(tmp, tmp, tmp2); + store_reg(r1, tmp); + break; + case 0xd: /* DSG R1,D2(X2,B2) [RXY] */ + case 0x1d: /* DSGF R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + if (op == 0x1d) { + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + else { + tcg_gen_qemu_ld64(tmp2, tmp, 1); + } + tmp = load_reg(r1 + 1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_div_i64(tmp3, tmp, tmp2); + store_reg(r1 + 1, tmp3); + tcg_gen_rem_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + break; + case 0x8: /* AG R1,D2(X2,B2) [RXY] */ + case 0xa: /* ALG R1,D2(X2,B2) [RXY] */ + case 0x18: /* AGF R1,D2(X2,B2) [RXY] */ + case 0x1a: /* ALGF R1,D2(X2,B2) [RXY] */ + if (op == 0x1a) { + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tcg_gen_ext32u_i64(tmp2, tmp2); + } + else if (op == 0x18) { + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + else { + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + } + tmp = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_add_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + switch (op) { + case 0x8: case 0x18: gen_set_cc_add64(tmp, tmp2, tmp3); break; + case 0xa: case 0x1a: gen_helper_set_cc_addu64(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 0x9: /* SG R1,D2(X2,B2) [RXY] */ + case 0xb: /* SLG R1,D2(X2,B2) [RXY] */ + case 0x19: /* SGF R1,D2(X2,B2) [RXY] */ + case 0x1b: /* SLGF R1,D2(X2,B2) [RXY] */ + if (op == 0x19) { + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + else if (op == 0x1b) { + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tcg_gen_ext32u_i64(tmp2, tmp2); + } + else { + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + } + tmp = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_sub_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + switch (op) { + case 0x9: case 0x19: gen_helper_set_cc_sub64(cc, tmp, tmp2, tmp3); break; + case 0xb: case 0x1b: gen_helper_set_cc_subu64(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 0x14: /* LGF R1,D2(X2,B2) [RXY] */ + case 0x16: /* LLGF R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + switch (op) { + case 0x14: tcg_gen_ext32s_i64(tmp2, tmp2); break; + case 0x16: tcg_gen_ext32u_i64(tmp2, tmp2); break; + default: tcg_abort(); + } + store_reg(r1, tmp2); + break; + case 0x15: /* LGH R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld16s(tmp2, tmp, 1); + tcg_gen_ext16s_i64(tmp2, tmp2); + store_reg(r1, tmp2); + break; + case 0x17: /* LLGT R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tcg_gen_ext32u_i64(tmp2, tmp2); + tcg_gen_andi_i64(tmp2, tmp2, 0x7fffffffULL); + store_reg(r1, tmp2); + break; + case 0x1e: /* LRV R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tcg_gen_bswap32_i32(tmp2, tmp2); + store_reg(r1, tmp2); + break; + case 0x20: /* CG R1,D2(X2,B2) [RXY] */ + case 0x21: /* CLG R1,D2(X2,B2) */ + case 0x30: /* CGF R1,D2(X2,B2) [RXY] */ + case 0x31: /* CLGF R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + switch (op) { + case 0x20: + case 0x21: + tcg_gen_qemu_ld64(tmp2, tmp, 1); + break; + case 0x30: + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tcg_gen_ext32s_i64(tmp2, tmp2); + break; + case 0x31: + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tcg_gen_ext32u_i64(tmp2, tmp2); + break; + default: + tcg_abort(); + } + tmp = load_reg(r1); + switch (op) { + case 0x20: case 0x30: cmp_s64(tmp, tmp2); break; + case 0x21: case 0x31: cmp_u64(tmp, tmp2); break; + default: tcg_abort(); + } + break; + case 0x24: /* stg r1, d2(x2,b2) */ + tmp2 = load_reg(r1); + tcg_gen_qemu_st64(tmp2, tmp, 1); + break; + case 0x3e: /* STRV R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg32(r1); + tcg_gen_bswap32_i32(tmp2, tmp2); + tcg_gen_qemu_st32(tmp2, tmp, 1); + break; + case 0x50: /* STY R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg32(r1); + tcg_gen_qemu_st32(tmp2, tmp, 1); + break; + case 0x57: /* XY R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg32(r1); + tmp3 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp3, tmp, 1); + tcg_gen_xor_i32(tmp, tmp2, tmp3); + store_reg32(r1, tmp); + set_cc_nz_u32(tmp); + break; + case 0x58: /* LY R1,D2(X2,B2) [RXY] */ + tmp3 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp3, tmp, 1); + store_reg32(r1, tmp3); + break; + case 0x5a: /* AY R1,D2(X2,B2) [RXY] */ + case 0x5b: /* SY R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg32(r1); + tmp3 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp3, tmp, 1); + switch (op) { + case 0x5a: tcg_gen_add_i32(tmp, tmp2, tmp3); break; + case 0x5b: tcg_gen_sub_i32(tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + store_reg32(r1, tmp); + switch (op) { + case 0x5a: gen_helper_set_cc_add32(cc, tmp2, tmp3, tmp); break; + case 0x5b: gen_helper_set_cc_sub32(cc, tmp2, tmp3, tmp); break; + default: tcg_abort(); + } + break; + case 0x71: /* LAY R1,D2(X2,B2) [RXY] */ + store_reg(r1, tmp); + break; + case 0x72: /* STCY R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg32(r1); + tcg_gen_qemu_st8(tmp2, tmp, 1); + break; + case 0x73: /* ICY R1,D2(X2,B2) [RXY] */ + tmp3 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp3, tmp, 1); + store_reg8(r1, tmp3); + break; + case 0x76: /* LB R1,D2(X2,B2) [RXY] */ + case 0x77: /* LGB R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld8s(tmp2, tmp, 1); + switch (op) { + case 0x76: + tcg_gen_ext8s_i32(tmp2, tmp2); + store_reg32(r1, tmp2); + break; + case 0x77: + tcg_gen_ext8s_i64(tmp2, tmp2); + store_reg(r1, tmp2); + break; + default: tcg_abort(); + } + break; + case 0x78: /* LHY R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld16s(tmp2, tmp, 1); + tcg_gen_ext16s_i32(tmp2, tmp2); + store_reg32(r1, tmp2); + break; + case 0x80: /* NG R1,D2(X2,B2) [RXY] */ + case 0x81: /* OG R1,D2(X2,B2) [RXY] */ + case 0x82: /* XG R1,D2(X2,B2) [RXY] */ + tmp2 = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp3, tmp, 1); + switch (op) { + case 0x80: tcg_gen_and_i64(tmp, tmp2, tmp3); break; + case 0x81: tcg_gen_or_i64(tmp, tmp2, tmp3); break; + case 0x82: tcg_gen_xor_i64(tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + store_reg(r1, tmp); + set_cc_nz_u64(tmp); + break; + case 0x86: /* MLG R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + tmp = tcg_const_i32(r1); + gen_helper_mlg(tmp, tmp2); + break; + case 0x87: /* DLG R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + tmp = tcg_const_i32(r1); + gen_helper_dlg(tmp, tmp2); + break; + case 0x88: /* ALCG R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + tmp = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_shri_i64(tmp3, cc, 1); + tcg_gen_andi_i64(tmp3, tmp3, 1); + tcg_gen_add_i64(tmp3, tmp2, tmp3);; + tcg_gen_add_i64(tmp3, tmp, tmp3); + store_reg(r1, tmp3); + gen_helper_set_cc_addc_u64(cc, tmp, tmp2, tmp3); + break; + case 0x89: /* SLBG R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + tmp = load_reg(r1); + tmp3 = tcg_const_i32(r1); + gen_helper_slbg(cc, cc, tmp3, tmp, tmp2); + break; + case 0x90: /* LLGC R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + store_reg(r1, tmp2); + break; + case 0x91: /* LLGH R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld16u(tmp2, tmp, 1); + store_reg(r1, tmp2); + break; + case 0x94: /* LLC R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + store_reg32(r1, tmp2); + break; + case 0x95: /* LLH R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld16u(tmp2, tmp, 1); + store_reg32(r1, tmp2); + break; + case 0x98: /* ALC R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tmp = tcg_const_i32(r1); + gen_helper_addc_u32(cc, cc, tmp, tmp2); + break; + case 0x99: /* SLB R1,D2(X2,B2) [RXY] */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tmp = load_reg32(r1); + tmp3 = tcg_const_i32(r1); + gen_helper_slb(cc, cc, tmp3, tmp, tmp2); + break; + default: + LOG_DISAS("illegal e3 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_eb(DisasContext *s, int op, int r1, int r3, int b2, int d2) +{ + TCGv tmp = 0,tmp2 = 0,tmp3 = 0,tmp4 = 0; + int i; + + LOG_DISAS("disas_eb: op 0x%x r1 %d r3 %d b2 %d d2 0x%x\n", op, r1, r3, b2, d2); + switch (op) { + case 0xc: /* SRLG R1,R3,D2(B2) [RSY] */ + case 0xd: /* SLLG R1,R3,D2(B2) [RSY] */ + case 0xa: /* SRAG R1,R3,D2(B2) [RSY] */ + case 0x1c: /* RLLG R1,R3,D2(B2) [RSY] */ + if (b2) { + tmp = get_address(0, b2, d2); + tcg_gen_andi_i64(tmp, tmp, 0x3f); + } + else tmp = tcg_const_i32(d2 & 0x3f); + tmp2 = load_reg(r3); + tmp3 = tcg_temp_new_i64(); + switch (op) { + case 0xc: tcg_gen_shr_i64(tmp3, tmp2, tmp); break; + case 0xd: tcg_gen_shl_i64(tmp3, tmp2, tmp); break; + case 0xa: tcg_gen_sar_i64(tmp3, tmp2, tmp); break; + case 0x1c: tcg_gen_rotl_i64(tmp3, tmp2, tmp); break; + default: tcg_abort(); break; + } + store_reg(r1, tmp3); + if (op == 0xa) set_cc_s64(tmp3); + break; + case 0x1d: /* RLL R1,R3,D2(B2) [RSY] */ + if (b2) { + tmp = get_address(0, b2, d2); + tcg_gen_andi_i64(tmp, tmp, 0x3f); + } + else tmp = tcg_const_i32(d2 & 0x3f); + tmp2 = load_reg32(r3); + tmp3 = tcg_temp_new_i32(); + switch (op) { + case 0x1d: tcg_gen_rotl_i32(tmp3, tmp2, tmp); break; + default: tcg_abort(); break; + } + store_reg32(r1, tmp3); + break; + case 0x4: /* LMG R1,R3,D2(B2) [RSY] */ + case 0x24: /* stmg */ + /* Apparently, unrolling lmg/stmg of any size gains performance - + even for very long ones... */ + if (r3 > r1) { + tmp = get_address(0, b2, d2); + for (i = r1; i <= r3; i++) { + if (op == 0x4) { + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + store_reg(i, tmp2); + /* At least one register is usually read after an lmg + (br %rsomething), which is why freeing them is + detrimental to performance */ + } + else { + tmp2 = load_reg(i); + tcg_gen_qemu_st64(tmp2, tmp, 1); + /* R15 is usually read after an stmg; other registers + generally aren't and can be free'd */ + if (i != 15) tcg_temp_free(tmp2); + } + tcg_gen_addi_i64(tmp, tmp, 8); + } + tmp2 = 0; + } + else { + tmp = tcg_const_i32(r1); + tmp2 = tcg_const_i32(r3); + tmp3 = tcg_const_i32(b2); + tmp4 = tcg_const_i32(d2); + if (op == 0x4) gen_helper_lmg(tmp, tmp2, tmp3, tmp4); + else gen_helper_stmg(tmp, tmp2, tmp3, tmp4); + } + break; + case 0x2c: /* STCMH R1,M3,D2(B2) [RSY] */ + tmp2 = get_address(0, b2, d2); + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + gen_helper_stcmh(cc, tmp, tmp2, tmp3); + break; + case 0x30: /* CSG R1,R3,D2(B2) [RSY] */ + tmp2 = get_address(0, b2, d2); + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + gen_helper_csg(cc, tmp, tmp2, tmp3); + break; + case 0x3e: /* CDSG R1,R3,D2(B2) [RSY] */ + tmp2 = get_address(0, b2, d2); + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + gen_helper_cdsg(cc, tmp, tmp2, tmp3); + break; + case 0x51: /* TMY D1(B1),I2 [SIY] */ + tmp = get_address(0, b2, d2); /* SIY -> this is the destination */ + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + tmp = tcg_const_i32((r1 << 4) | r3); + gen_helper_tm(cc, tmp2, tmp); + break; + case 0x52: /* MVIY D1(B1),I2 [SIY] */ + tmp2 = tcg_const_i32((r1 << 4) | r3); + tmp = get_address(0, b2, d2); /* SIY -> this is the destination */ + tcg_gen_qemu_st8(tmp2, tmp, 1); + break; + case 0x55: /* CLIY D1(B1),I2 [SIY] */ + tmp3 = get_address(0, b2, d2); /* SIY -> this is the 1st operand */ + tmp = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp, tmp3, 1); + cmp_u32c(tmp, (r1 << 4) | r3); + break; + case 0x80: /* ICMH R1,M3,D2(B2) [RSY] */ + tmp2 = get_address(0, b2, d2); + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + gen_helper_icmh(cc, tmp, tmp2, tmp3); + break; + default: + LOG_DISAS("illegal eb operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); + if (tmp4) tcg_temp_free(tmp4); +} + +static void disas_ed(DisasContext *s, int op, int r1, int x2, int b2, int d2, int r1b) +{ + TCGv tmp, tmp2, tmp3 = 0; + tmp2 = get_address(x2, b2, d2); + tmp = tcg_const_i32(r1); + switch (op) { + case 0x5: /* LXDB R1,D2(X2,B2) [RXE] */ + gen_helper_lxdb(tmp, tmp2); + break; + case 0x9: /* CEB R1,D2(X2,B2) [RXE] */ + gen_helper_ceb(cc, tmp, tmp2); + break; + case 0xa: /* AEB R1,D2(X2,B2) [RXE] */ + gen_helper_aeb(cc, tmp, tmp2); + break; + case 0xb: /* SEB R1,D2(X2,B2) [RXE] */ + gen_helper_seb(cc, tmp, tmp2); + break; + case 0xd: /* DEB R1,D2(X2,B2) [RXE] */ + gen_helper_deb(tmp, tmp2); + break; + case 0x10: /* TCEB R1,D2(X2,B2) [RXE] */ + gen_helper_tceb(cc, tmp, tmp2); + break; + case 0x11: /* TCDB R1,D2(X2,B2) [RXE] */ + gen_helper_tcdb(cc, tmp, tmp2); + break; + case 0x12: /* TCXB R1,D2(X2,B2) [RXE] */ + gen_helper_tcxb(cc, tmp, tmp2); + break; + case 0x17: /* MEEB R1,D2(X2,B2) [RXE] */ + gen_helper_meeb(tmp, tmp2); + break; + case 0x19: /* CDB R1,D2(X2,B2) [RXE] */ + gen_helper_cdb(cc, tmp, tmp2); + break; + case 0x1a: /* ADB R1,D2(X2,B2) [RXE] */ + gen_helper_adb(cc, tmp, tmp2); + break; + case 0x1b: /* SDB R1,D2(X2,B2) [RXE] */ + gen_helper_sdb(cc, tmp, tmp2); + break; + case 0x1c: /* MDB R1,D2(X2,B2) [RXE] */ + gen_helper_mdb(tmp, tmp2); + break; + case 0x1d: /* DDB R1,D2(X2,B2) [RXE] */ + gen_helper_ddb(tmp, tmp2); + break; + case 0x1e: /* MADB R1,R3,D2(X2,B2) [RXF] */ + /* for RXF insns, r1 is R3 and r1b is R1 */ + tmp3 = tcg_const_i32(r1b); + gen_helper_madb(tmp3, tmp2, tmp); + break; + default: + LOG_DISAS("illegal ed operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + tcg_temp_free(tmp); + tcg_temp_free(tmp2); +} + +static void disas_a5(DisasContext *s, int op, int r1, int i2) +{ + TCGv tmp = 0,tmp2 = 0; + uint64_t vtmp; + LOG_DISAS("disas_a5: op 0x%x r1 %d i2 0x%x\n", op, r1, i2); + switch (op) { + case 0x0: /* IIHH R1,I2 [RI] */ + case 0x1: /* IIHL R1,I2 [RI] */ + tmp = load_reg(r1); + vtmp = i2; + switch (op) { + case 0x0: tcg_gen_andi_i64(tmp, tmp, 0x0000ffffffffffffULL); vtmp <<= 48; break; + case 0x1: tcg_gen_andi_i64(tmp, tmp, 0xffff0000ffffffffULL); vtmp <<= 32; break; + default: tcg_abort(); + } + tcg_gen_ori_i64(tmp, tmp, vtmp); + store_reg(r1, tmp); + break; + case 0x4: /* NIHH R1,I2 [RI] */ + case 0x8: /* OIHH R1,I2 [RI] */ + tmp = load_reg(r1); + switch (op) { + case 0x4: + tmp2 = tcg_const_i64( (((uint64_t)i2) << 48) | 0x0000ffffffffffffULL); + tcg_gen_and_i64(tmp, tmp, tmp2); + break; + case 0x8: + tmp2 = tcg_const_i64(((uint64_t)i2) << 48); + tcg_gen_or_i64(tmp, tmp, tmp2); + break; + default: tcg_abort(); + } + store_reg(r1, tmp); + tcg_gen_shri_i64(tmp2, tmp, 48); + tcg_gen_trunc_i64_i32(tmp2, tmp2); + set_cc_nz_u32(tmp2); + break; + case 0x5: /* NIHL R1,I2 [RI] */ + case 0x9: /* OIHL R1,I2 [RI] */ + tmp = load_reg(r1); + switch (op) { + case 0x5: + tmp2 = tcg_const_i64( (((uint64_t)i2) << 32) | 0xffff0000ffffffffULL); + tcg_gen_and_i64(tmp, tmp, tmp2); + break; + case 0x9: + tmp2 = tcg_const_i64(((uint64_t)i2) << 32); + tcg_gen_or_i64(tmp, tmp, tmp2); + break; + default: tcg_abort(); + } + store_reg(r1, tmp); + tcg_gen_shri_i64(tmp2, tmp, 32); + tcg_gen_trunc_i64_i32(tmp2, tmp2); + tcg_gen_andi_i32(tmp2, tmp2, 0xffff); + set_cc_nz_u32(tmp2); + break; + case 0x6: /* NILH R1,I2 [RI] */ + case 0xa: /* OILH R1,I2 [RI] */ + tmp = load_reg(r1); + switch (op) { + case 0x6: + tmp2 = tcg_const_i64( (((uint64_t)i2) << 16) | 0xffffffff0000ffffULL); + tcg_gen_and_i64(tmp, tmp, tmp2); + break; + case 0xa: + tmp2 = tcg_const_i64(((uint64_t)i2) << 16); + tcg_gen_or_i64(tmp, tmp, tmp2); + break; + default: tcg_abort(); + } + store_reg(r1, tmp); + tcg_gen_shri_i64(tmp2, tmp, 16); + tcg_gen_trunc_i64_i32(tmp2, tmp2); + tcg_gen_andi_i32(tmp2, tmp2, 0xffff); + set_cc_nz_u32(tmp2); + break; + case 0x7: /* NILL R1,I2 [RI] */ + case 0xb: /* OILL R1,I2 [RI] */ + tmp = load_reg(r1); + switch (op) { + case 0x7: + tmp2 = tcg_const_i64(i2 | 0xffffffffffff0000ULL); + tcg_gen_and_i64(tmp, tmp, tmp2); + break; + case 0xb: + tmp2 = tcg_const_i64(i2); + tcg_gen_or_i64(tmp, tmp, tmp2); + break; + default: tcg_abort(); break; + } + store_reg(r1, tmp); + tcg_gen_trunc_i64_i32(tmp, tmp); + tcg_gen_andi_i32(tmp, tmp, 0xffff); + set_cc_nz_u32(tmp); /* signedness should not matter here */ + break; + case 0xc: /* LLIHH R1,I2 [RI] */ + tmp = tcg_const_i64( ((uint64_t)i2) << 48 ); + store_reg(r1, tmp); + break; + case 0xd: /* LLIHL R1,I2 [RI] */ + tmp = tcg_const_i64( ((uint64_t)i2) << 32 ); + store_reg(r1, tmp); + break; + case 0xe: /* LLILH R1,I2 [RI] */ + tmp = tcg_const_i64( ((uint64_t)i2) << 16 ); + store_reg(r1, tmp); + break; + case 0xf: /* LLILL R1,I2 [RI] */ + tmp = tcg_const_i64(i2); + store_reg(r1, tmp); + break; + default: + LOG_DISAS("illegal a5 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); +} + +static void disas_a7(DisasContext *s, int op, int r1, int i2) +{ + TCGv tmp = 0,tmp2 = 0,tmp3 = 0; + LOG_DISAS("disas_a7: op 0x%x r1 %d i2 0x%x\n", op, r1, i2); + switch (op) { + case 0x0: /* TMLH or TMH R1,I2 [RI] */ + tmp = load_reg(r1); + tcg_gen_shri_i64(tmp, tmp, 16); + tmp2 = tcg_const_i32((uint16_t)i2); + gen_helper_tmxx(cc, tmp, tmp2); + break; + case 0x1: /* TMLL or TML R1,I2 [RI] */ + tmp = load_reg(r1); + tmp2 = tcg_const_i32((uint16_t)i2); + gen_helper_tmxx(cc, tmp, tmp2); + break; + case 0x2: /* TMHH R1,I2 [RI] */ + tmp = load_reg(r1); + tcg_gen_shri_i64(tmp, tmp, 48); + tmp2 = tcg_const_i32((uint16_t)i2); + gen_helper_tmxx(cc, tmp, tmp2); + break; + case 0x3: /* TMHL R1,I2 [RI] */ + tmp = load_reg(r1); + tcg_gen_shri_i64(tmp, tmp, 32); + tmp2 = tcg_const_i32((uint16_t)i2); + gen_helper_tmxx(cc, tmp, tmp2); + break; + case 0x4: /* brc m1, i2 */ + /* FIXME: optimize m1 == 0xf (unconditional) case */ + gen_brc(r1, s->pc, i2 * 2); + s->is_jmp = DISAS_JUMP; + break; + case 0x5: /* BRAS R1,I2 [RI] */ + tmp = tcg_const_i64(s->pc + 4); + store_reg(r1, tmp); + tmp = tcg_const_i64(s->pc + i2 * 2); + tcg_gen_st_i64(tmp, cpu_env, offsetof(CPUState, psw.addr)); + s->is_jmp = DISAS_JUMP; + break; + case 0x6: /* BRCT R1,I2 [RI] */ + tmp = load_reg32(r1); + tcg_gen_subi_i32(tmp, tmp, 1); + store_reg32(r1, tmp); + tmp2 = tcg_const_i64(s->pc); + tmp3 = tcg_const_i32(i2 * 2); + gen_helper_brct(tmp, tmp2, tmp3); + s->is_jmp = DISAS_JUMP; + break; + case 0x7: /* BRCTG R1,I2 [RI] */ + tmp = load_reg(r1); + tcg_gen_subi_i64(tmp, tmp, 1); + store_reg(r1, tmp); + tmp2 = tcg_const_i64(s->pc); + tmp3 = tcg_const_i32(i2 * 2); + gen_helper_brctg(tmp, tmp2, tmp3); + s->is_jmp = DISAS_JUMP; + break; + case 0x8: /* lhi r1, i2 */ + tmp = tcg_const_i32(i2); + store_reg32(r1, tmp); + break; + case 0x9: /* lghi r1, i2 */ + tmp = tcg_const_i64(i2); + store_reg(r1, tmp); + break; + case 0xa: /* AHI R1,I2 [RI] */ + tmp = load_reg32(r1); + tmp3 = tcg_temp_new_i32(); + tcg_gen_addi_i32(tmp3, tmp, i2); + store_reg32(r1, tmp3); + tmp2 = tcg_const_i32(i2); + gen_helper_set_cc_add32(cc, tmp, tmp2, tmp3); + break; + case 0xb: /* aghi r1, i2 */ + tmp = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_addi_i64(tmp3, tmp, i2); + store_reg(r1, tmp3); + tmp2 = tcg_const_i64(i2); + gen_set_cc_add64(tmp, tmp2, tmp3); + break; + case 0xc: /* MHI R1,I2 [RI] */ + tmp = load_reg32(r1); + tcg_gen_muli_i32(tmp, tmp, i2); + store_reg32(r1, tmp); + break; + case 0xd: /* MGHI R1,I2 [RI] */ + tmp = load_reg(r1); + tcg_gen_muli_i64(tmp, tmp, i2); + store_reg(r1, tmp); + break; + case 0xe: /* CHI R1,I2 [RI] */ + tmp = load_reg32(r1); + cmp_s32c(tmp, i2); + break; + case 0xf: /* CGHI R1,I2 [RI] */ + tmp = load_reg(r1); + cmp_s64c(tmp, i2); + break; + default: + LOG_DISAS("illegal a7 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_b2(DisasContext *s, int op, int r1, int r2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2); + switch (op) { + case 0x22: /* IPM R1 [RRE] */ + tmp = tcg_const_i32(r1); + gen_helper_ipm(cc, tmp); + break; + case 0x4e: /* SAR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, aregs[r1])); + break; + case 0x4f: /* EAR R1,R2 [RRE] */ + tmp = tcg_temp_new_i32(); + tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUState, aregs[r2])); + store_reg32(r1, tmp); + break; + case 0x52: /* MSR R1,R2 [RRE] */ + tmp = load_reg32(r1); + tmp2 = load_reg32(r2); + tcg_gen_mul_i32(tmp, tmp, tmp2); + store_reg32(r1, tmp); + break; + case 0x55: /* MVST R1,R2 [RRE] */ + tmp = load_reg32(0); + tmp2 = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r2); + gen_helper_mvst(cc, tmp, tmp2, tmp3); + break; + case 0x5d: /* CLST R1,R2 [RRE] */ + tmp = load_reg32(0); + tmp2 = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r2); + gen_helper_clst(cc, tmp, tmp2, tmp3); + break; + case 0x5e: /* SRST R1,R2 [RRE] */ + tmp = load_reg32(0); + tmp2 = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r2); + gen_helper_srst(cc, tmp, tmp2, tmp3); + break; + default: + LOG_DISAS("illegal b2 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_b3(DisasContext *s, int op, int m3, int r1, int r2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + LOG_DISAS("disas_b3: op 0x%x m3 0x%x r1 %d r2 %d\n", op, m3, r1, r2); +#define FP_HELPER(i) \ + tmp = tcg_const_i32(r1); \ + tmp2 = tcg_const_i32(r2); \ + gen_helper_ ## i (tmp, tmp2); +#define FP_HELPER_CC(i) \ + tmp = tcg_const_i32(r1); \ + tmp2 = tcg_const_i32(r2); \ + gen_helper_ ## i (cc, tmp, tmp2); + + switch (op) { + case 0x0: /* LPEBR R1,R2 [RRE] */ + FP_HELPER_CC(lpebr); break; + case 0x2: /* LTEBR R1,R2 [RRE] */ + FP_HELPER_CC(ltebr); break; + case 0x3: /* LCEBR R1,R2 [RRE] */ + FP_HELPER_CC(lcebr); break; + case 0x4: /* LDEBR R1,R2 [RRE] */ + FP_HELPER(ldebr); break; + case 0x5: /* LXDBR R1,R2 [RRE] */ + FP_HELPER(lxdbr); break; + case 0x9: /* CEBR R1,R2 [RRE] */ + FP_HELPER_CC(cebr); break; + case 0xa: /* AEBR R1,R2 [RRE] */ + FP_HELPER_CC(aebr); break; + case 0xb: /* SEBR R1,R2 [RRE] */ + FP_HELPER_CC(sebr); break; + case 0xd: /* DEBR R1,R2 [RRE] */ + FP_HELPER(debr); break; + case 0x10: /* LPDBR R1,R2 [RRE] */ + FP_HELPER_CC(lpdbr); break; + case 0x12: /* LTDBR R1,R2 [RRE] */ + FP_HELPER_CC(ltdbr); break; + case 0x13: /* LCDBR R1,R2 [RRE] */ + FP_HELPER_CC(lcdbr); break; + case 0x15: /* SQBDR R1,R2 [RRE] */ + FP_HELPER(sqdbr); break; + case 0x17: /* MEEBR R1,R2 [RRE] */ + FP_HELPER(meebr); break; + case 0x19: /* CDBR R1,R2 [RRE] */ + FP_HELPER_CC(cdbr); break; + case 0x1a: /* ADBR R1,R2 [RRE] */ + FP_HELPER_CC(adbr); break; + case 0x1b: /* SDBR R1,R2 [RRE] */ + FP_HELPER_CC(sdbr); break; + case 0x1c: /* MDBR R1,R2 [RRE] */ + FP_HELPER(mdbr); break; + case 0x1d: /* DDBR R1,R2 [RRE] */ + FP_HELPER(ddbr); break; + case 0xe: /* MAEBR R1,R3,R2 [RRF] */ + case 0x1e: /* MADBR R1,R3,R2 [RRF] */ + case 0x1f: /* MSDBR R1,R3,R2 [RRF] */ + /* for RRF insns, m3 is R1, r1 is R3, and r2 is R2 */ + tmp = tcg_const_i32(m3); + tmp2 = tcg_const_i32(r2); + tmp3 = tcg_const_i32(r1); + switch (op) { + case 0xe: gen_helper_maebr(tmp, tmp3, tmp2); break; + case 0x1e: gen_helper_madbr(tmp, tmp3, tmp2); break; + case 0x1f: gen_helper_msdbr(tmp, tmp3, tmp2); break; + default: tcg_abort(); + } + break; + case 0x40: /* LPXBR R1,R2 [RRE] */ + FP_HELPER_CC(lpxbr); break; + case 0x42: /* LTXBR R1,R2 [RRE] */ + FP_HELPER_CC(ltxbr); break; + case 0x43: /* LCXBR R1,R2 [RRE] */ + FP_HELPER_CC(lcxbr); break; + case 0x44: /* LEDBR R1,R2 [RRE] */ + FP_HELPER(ledbr); break; + case 0x45: /* LDXBR R1,R2 [RRE] */ + FP_HELPER(ldxbr); break; + case 0x46: /* LEXBR R1,R2 [RRE] */ + FP_HELPER(lexbr); break; + case 0x49: /* CXBR R1,R2 [RRE] */ + FP_HELPER_CC(cxbr); break; + case 0x4a: /* AXBR R1,R2 [RRE] */ + FP_HELPER_CC(axbr); break; + case 0x4b: /* SXBR R1,R2 [RRE] */ + FP_HELPER_CC(sxbr); break; + case 0x4c: /* MXBR R1,R2 [RRE] */ + FP_HELPER(mxbr); break; + case 0x4d: /* DXBR R1,R2 [RRE] */ + FP_HELPER(dxbr); break; + case 0x65: /* LXR R1,R2 [RRE] */ + tmp = load_freg(r2); + store_freg(r1, tmp); + tmp = load_freg(r2 + 2); + store_freg(r1 + 2, tmp); + break; + case 0x74: /* LZER R1 [RRE] */ + tmp = tcg_const_i32(r1); + gen_helper_lzer(tmp); + break; + case 0x75: /* LZDR R1 [RRE] */ + tmp = tcg_const_i32(r1); + gen_helper_lzdr(tmp); + break; + case 0x76: /* LZXR R1 [RRE] */ + tmp = tcg_const_i32(r1); + gen_helper_lzxr(tmp); + break; + case 0x84: /* SFPC R1 [RRE] */ + tmp = load_reg32(r1); + tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, fpc)); + break; + case 0x8c: /* EFPC R1 [RRE] */ + tmp = tcg_temp_new_i32(); + tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUState, fpc)); + store_reg32(r1, tmp); + break; + case 0x94: /* CEFBR R1,R2 [RRE] */ + case 0x95: /* CDFBR R1,R2 [RRE] */ + case 0x96: /* CXFBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = load_reg32(r2); + switch (op) { + case 0x94: gen_helper_cefbr(tmp, tmp2); break; + case 0x95: gen_helper_cdfbr(tmp, tmp2); break; + case 0x96: gen_helper_cxfbr(tmp, tmp2); break; + default: tcg_abort(); + } + break; + case 0x98: /* CFEBR R1,R2 [RRE] */ + case 0x99: /* CFDBR R1,R2 [RRE] */ + case 0x9a: /* CFXBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = tcg_const_i32(r2); + tmp3 = tcg_const_i32(m3); + switch (op) { + case 0x98: gen_helper_cfebr(cc, tmp, tmp2, tmp3); break; + case 0x99: gen_helper_cfdbr(cc, tmp, tmp2, tmp3); break; + case 0x9a: gen_helper_cfxbr(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 0xa4: /* CEGBR R1,R2 [RRE] */ + case 0xa5: /* CDGBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = load_reg(r2); + switch (op) { + case 0xa4: gen_helper_cegbr(tmp, tmp2); break; + case 0xa5: gen_helper_cdgbr(tmp, tmp2); break; + default: tcg_abort(); + } + break; + case 0xa6: /* CXGBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = load_reg(r2); + gen_helper_cxgbr(tmp, tmp2); + break; + case 0xa8: /* CGEBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = tcg_const_i32(r2); + tmp3 = tcg_const_i32(m3); + gen_helper_cgebr(cc, tmp, tmp2, tmp3); + break; + case 0xa9: /* CGDBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = tcg_const_i32(r2); + tmp3 = tcg_const_i32(m3); + gen_helper_cgdbr(cc, tmp, tmp2, tmp3); + break; + case 0xaa: /* CGXBR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = tcg_const_i32(r2); + tmp3 = tcg_const_i32(m3); + gen_helper_cgxbr(cc, tmp, tmp2, tmp3); + break; + default: + LOG_DISAS("illegal b3 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_b9(DisasContext *s, int op, int r1, int r2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + LOG_DISAS("disas_b9: op 0x%x r1 %d r2 %d\n", op, r1, r2); + switch (op) { + case 0: /* LPGR R1,R2 [RRE] */ + case 0x10: /* LPGFR R1,R2 [RRE] */ + if (op == 0) { + tmp2 = load_reg(r2); + } + else { + tmp2 = load_reg32(r2); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + tmp = tcg_const_i32(r1); + gen_helper_abs_i64(cc, tmp, tmp2); + break; + case 1: /* LNGR R1,R2 [RRE] */ + tmp2 = load_reg(r2); + tmp = tcg_const_i32(r1); + gen_helper_nabs_i64(cc, tmp, tmp2); + break; + case 2: /* LTGR R1,R2 [RRE] */ + tmp = load_reg(r2); + if (r1 != r2) store_reg(r1, tmp); + set_cc_s64(tmp); + break; + case 3: /* LCGR R1,R2 [RRE] */ + case 0x13: /* LCGFR R1,R2 [RRE] */ + if (op == 0x13) { + tmp = load_reg32(r2); + tcg_gen_ext32s_i64(tmp, tmp); + } + else { + tmp = load_reg(r2); + } + tcg_gen_neg_i64(tmp, tmp); + store_reg(r1, tmp); + gen_helper_set_cc_comp_s64(cc, tmp); + break; + case 4: /* LGR R1,R2 [RRE] */ + tmp = load_reg(r2); + store_reg(r1, tmp); + break; + case 0x6: /* LGBR R1,R2 [RRE] */ + tmp2 = load_reg(r2); + tcg_gen_ext8s_i64(tmp2, tmp2); + store_reg(r1, tmp2); + break; + case 8: /* AGR R1,R2 [RRE] */ + case 0xa: /* ALGR R1,R2 [RRE] */ + tmp = load_reg(r1); + tmp2 = load_reg(r2); + tmp3 = tcg_temp_new_i64(); + tcg_gen_add_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + switch (op) { + case 0x8: gen_set_cc_add64(tmp, tmp2, tmp3); break; + case 0xa: gen_helper_set_cc_addu64(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 9: /* SGR R1,R2 [RRE] */ + case 0xb: /* SLGR R1,R2 [RRE] */ + case 0x1b: /* SLGFR R1,R2 [RRE] */ + case 0x19: /* SGFR R1,R2 [RRE] */ + tmp = load_reg(r1); + switch (op) { + case 0x1b: case 0x19: + tmp2 = load_reg32(r2); + if (op == 0x19) tcg_gen_ext32s_i64(tmp2, tmp2); + else tcg_gen_ext32u_i64(tmp2, tmp2); + break; + default: + tmp2 = load_reg(r2); + break; + } + tmp3 = tcg_temp_new_i64(); + tcg_gen_sub_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + switch (op) { + case 9: case 0x19: gen_helper_set_cc_sub64(cc, tmp,tmp2,tmp3); break; + case 0xb: case 0x1b: gen_helper_set_cc_subu64(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 0xc: /* MSGR R1,R2 [RRE] */ + case 0x1c: /* MSGFR R1,R2 [RRE] */ + tmp = load_reg(r1); + tmp2 = load_reg(r2); + if (op == 0x1c) tcg_gen_ext32s_i64(tmp2, tmp2); + tcg_gen_mul_i64(tmp, tmp, tmp2); + store_reg(r1, tmp); + break; + case 0xd: /* DSGR R1,R2 [RRE] */ + case 0x1d: /* DSGFR R1,R2 [RRE] */ + tmp = load_reg(r1 + 1); + if (op == 0xd) { + tmp2 = load_reg(r2); + } + else { + tmp2 = load_reg32(r2); + tcg_gen_ext32s_i64(tmp2, tmp2); + } + tmp3 = tcg_temp_new_i64(); + tcg_gen_div_i64(tmp3, tmp, tmp2); + store_reg(r1 + 1, tmp3); + tcg_gen_rem_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + break; + case 0x14: /* LGFR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tmp2 = tcg_temp_new_i64(); + tcg_gen_ext32s_i64(tmp2, tmp); + store_reg(r1, tmp2); + break; + case 0x16: /* LLGFR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tcg_gen_ext32u_i64(tmp, tmp); + store_reg(r1, tmp); + break; + case 0x17: /* LLGTR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tcg_gen_andi_i32(tmp, tmp, 0x7fffffffUL); + tcg_gen_ext32u_i64(tmp, tmp); + store_reg(r1, tmp); + break; + case 0x18: /* AGFR R1,R2 [RRE] */ + case 0x1a: /* ALGFR R1,R2 [RRE] */ + tmp2 = load_reg32(r2); + switch (op) { + case 0x18: tcg_gen_ext32s_i64(tmp2, tmp2); break; + case 0x1a: tcg_gen_ext32u_i64(tmp2, tmp2); break; + default: tcg_abort(); + } + tmp = load_reg(r1); + tmp3 = tcg_temp_new_i64(); + tcg_gen_add_i64(tmp3, tmp, tmp2); + store_reg(r1, tmp3); + switch (op) { + case 0x18: gen_set_cc_add64(tmp, tmp2, tmp3); break; + case 0x1a: gen_helper_set_cc_addu64(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + break; + case 0x20: /* CGR R1,R2 [RRE] */ + case 0x30: /* CGFR R1,R2 [RRE] */ + tmp2 = load_reg(r2); + if (op == 0x30) tcg_gen_ext32s_i64(tmp2, tmp2); + tmp = load_reg(r1); + cmp_s64(tmp, tmp2); + break; + case 0x21: /* CLGR R1,R2 [RRE] */ + case 0x31: /* CLGFR R1,R2 [RRE] */ + tmp2 = load_reg(r2); + if (op == 0x31) tcg_gen_ext32u_i64(tmp2, tmp2); + tmp = load_reg(r1); + cmp_u64(tmp, tmp2); + break; + case 0x26: /* LBR R1,R2 [RRE] */ + tmp2 = load_reg32(r2); + tcg_gen_ext8s_i32(tmp2, tmp2); + store_reg32(r1, tmp2); + break; + case 0x27: /* LHR R1,R2 [RRE] */ + tmp2 = load_reg32(r2); + tcg_gen_ext16s_i32(tmp2, tmp2); + store_reg32(r1, tmp2); + break; + case 0x80: /* NGR R1,R2 [RRE] */ + case 0x81: /* OGR R1,R2 [RRE] */ + case 0x82: /* XGR R1,R2 [RRE] */ + tmp = load_reg(r1); + tmp2 = load_reg(r2); + switch (op) { + case 0x80: tcg_gen_and_i64(tmp, tmp, tmp2); break; + case 0x81: tcg_gen_or_i64(tmp, tmp, tmp2); break; + case 0x82: tcg_gen_xor_i64(tmp, tmp, tmp2); break; + default: tcg_abort(); + } + store_reg(r1, tmp); + set_cc_nz_u64(tmp); + break; + case 0x83: /* FLOGR R1,R2 [RRE] */ + tmp2 = load_reg(r2); + tmp = tcg_const_i32(r1); + gen_helper_flogr(cc, tmp, tmp2); + break; + case 0x84: /* LLGCR R1,R2 [RRE] */ + tmp = load_reg(r2); + tcg_gen_andi_i64(tmp, tmp, 0xff); + store_reg(r1, tmp); + break; + case 0x85: /* LLGHR R1,R2 [RRE] */ + tmp = load_reg(r2); + tcg_gen_andi_i64(tmp, tmp, 0xffff); + store_reg(r1, tmp); + break; + case 0x87: /* DLGR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = load_reg(r2); + gen_helper_dlg(tmp, tmp2); + break; + case 0x88: /* ALCGR R1,R2 [RRE] */ + tmp = load_reg(r1); + tmp2 = load_reg(r2); + tmp3 = tcg_temp_new_i64(); + tcg_gen_shri_i64(tmp3, cc, 1); + tcg_gen_andi_i64(tmp3, tmp3, 1); + tcg_gen_add_i64(tmp3, tmp2, tmp3); + tcg_gen_add_i64(tmp3, tmp, tmp3); + store_reg(r1, tmp3); + gen_helper_set_cc_addc_u64(cc, tmp, tmp2, tmp3); + break; + case 0x89: /* SLBGR R1,R2 [RRE] */ + tmp = load_reg(r1); + tmp2 = load_reg(r2); + tmp3 = tcg_const_i32(r1); + gen_helper_slbg(cc, cc, tmp3, tmp, tmp2); + break; + case 0x94: /* LLCR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tcg_gen_andi_i32(tmp, tmp, 0xff); + store_reg32(r1, tmp); + break; + case 0x95: /* LLHR R1,R2 [RRE] */ + tmp = load_reg32(r2); + tcg_gen_andi_i32(tmp, tmp, 0xffff); + store_reg32(r1, tmp); + break; + case 0x98: /* ALCR R1,R2 [RRE] */ + tmp = tcg_const_i32(r1); + tmp2 = load_reg32(r2); + gen_helper_addc_u32(cc, cc, tmp, tmp2); + break; + case 0x99: /* SLBR R1,R2 [RRE] */ + tmp = load_reg32(r1); + tmp2 = load_reg32(r2); + tmp3 = tcg_const_i32(r1); + gen_helper_slb(cc, cc, tmp3, tmp, tmp2); + break; + default: + LOG_DISAS("illegal b9 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_c0(DisasContext *s, int op, int r1, int i2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + LOG_DISAS("disas_c0: op 0x%x r1 %d i2 %d\n", op, r1, i2); + uint64_t target = s->pc + i2 * 2; + /* FIXME: huh? */ target &= 0xffffffff; + switch (op) { + case 0: /* larl r1, i2 */ + tmp = tcg_const_i64(target); + store_reg(r1, tmp); + break; + case 0x1: /* LGFI R1,I2 [RIL] */ + tmp = tcg_const_i64((int64_t)i2); + store_reg(r1, tmp); + break; + case 0x4: /* BRCL M1,I2 [RIL] */ + tmp = tcg_const_i32(r1); /* aka m1 */ + tmp2 = tcg_const_i64(s->pc); + tmp3 = tcg_const_i64(i2 * 2); + gen_helper_brcl(cc, tmp, tmp2, tmp3); + s->is_jmp = DISAS_JUMP; + break; + case 0x5: /* brasl r1, i2 */ + tmp = tcg_const_i64(s->pc + 6); + store_reg(r1, tmp); + tmp = tcg_const_i64(target); + tcg_gen_st_i64(tmp, cpu_env, offsetof(CPUState, psw.addr)); + s->is_jmp = DISAS_JUMP; + break; + case 0x7: /* XILF R1,I2 [RIL] */ + case 0xb: /* NILF R1,I2 [RIL] */ + case 0xd: /* OILF R1,I2 [RIL] */ + tmp = load_reg32(r1); + switch (op) { + case 0x7: tcg_gen_xori_i32(tmp, tmp, (uint32_t)i2); break; + case 0xb: tcg_gen_andi_i32(tmp, tmp, (uint32_t)i2); break; + case 0xd: tcg_gen_ori_i32(tmp, tmp, (uint32_t)i2); break; + default: tcg_abort(); + } + store_reg32(r1, tmp); + tcg_gen_trunc_i64_i32(tmp, tmp); + set_cc_nz_u32(tmp); + break; + case 0x9: /* IILF R1,I2 [RIL] */ + tmp = tcg_const_i32((uint32_t)i2); + store_reg32(r1, tmp); + break; + case 0xa: /* NIHF R1,I2 [RIL] */ + tmp = load_reg(r1); + switch (op) { + case 0xa: tcg_gen_andi_i64(tmp, tmp, (((uint64_t)((uint32_t)i2)) << 32) | 0xffffffffULL); break; + default: tcg_abort(); + } + store_reg(r1, tmp); + tcg_gen_shr_i64(tmp, tmp, 32); + tcg_gen_trunc_i64_i32(tmp, tmp); + set_cc_nz_u32(tmp); + break; + case 0xe: /* LLIHF R1,I2 [RIL] */ + tmp = tcg_const_i64(((uint64_t)(uint32_t)i2) << 32); + store_reg(r1, tmp); + break; + case 0xf: /* LLILF R1,I2 [RIL] */ + tmp = tcg_const_i64((uint32_t)i2); + store_reg(r1, tmp); + break; + default: + LOG_DISAS("illegal c0 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static void disas_c2(DisasContext *s, int op, int r1, int i2) +{ + TCGv tmp = 0, tmp2 = 0, tmp3 = 0; + switch (op) { + case 0x4: /* SLGFI R1,I2 [RIL] */ + case 0xa: /* ALGFI R1,I2 [RIL] */ + tmp = load_reg(r1); + tmp2 = tcg_const_i64((uint64_t)(uint32_t)i2); + tmp3 = tcg_temp_new_i64(); + switch (op) { + case 0x4: + tcg_gen_sub_i64(tmp3, tmp, tmp2); + gen_helper_set_cc_subu64(cc, tmp, tmp2, tmp3); + break; + case 0xa: + tcg_gen_add_i64(tmp3, tmp, tmp2); + gen_helper_set_cc_addu64(cc, tmp, tmp2, tmp3); + break; + default: tcg_abort(); + } + store_reg(r1, tmp3); + break; + case 0x5: /* SLFI R1,I2 [RIL] */ + case 0xb: /* ALFI R1,I2 [RIL] */ + tmp = load_reg32(r1); + tmp2 = tcg_const_i32(i2); + tmp3 = tcg_temp_new_i32(); + switch (op) { + case 0x5: + tcg_gen_sub_i32(tmp3, tmp, tmp2); + gen_helper_set_cc_subu32(cc, tmp, tmp2, tmp3); + break; + case 0xb: + tcg_gen_add_i32(tmp3, tmp, tmp2); + gen_helper_set_cc_addu32(cc, tmp, tmp2, tmp3); + break; + default: tcg_abort(); + } + store_reg32(r1, tmp3); + break; + case 0xc: /* CGFI R1,I2 [RIL] */ + tmp = load_reg(r1); + cmp_s64c(tmp, (int64_t)i2); + break; + case 0xe: /* CLGFI R1,I2 [RIL] */ + tmp = load_reg(r1); + cmp_u64c(tmp, (uint64_t)(uint32_t)i2); + break; + case 0xd: /* CFI R1,I2 [RIL] */ + case 0xf: /* CLFI R1,I2 [RIL] */ + tmp = load_reg32(r1); + switch (op) { + case 0xd: cmp_s32c(tmp, i2); break; + case 0xf: cmp_u32c(tmp, i2); break; + default: tcg_abort(); + } + break; + default: + LOG_DISAS("illegal c2 operation 0x%x\n", op); + gen_illegal_opcode(s); + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static inline uint64_t ld_code2(uint64_t pc) { return (uint64_t)lduw_code(pc); } +static inline uint64_t ld_code4(uint64_t pc) { return (uint64_t)ldl_code(pc); } +static inline uint64_t ld_code6(uint64_t pc) +{ + uint64_t opc; + opc = (uint64_t)lduw_code(pc) << 32; + opc |= (uint64_t)(unsigned int)ldl_code(pc+2); + return opc; +} + +static void disas_s390_insn(CPUState *env, DisasContext *s) +{ + TCGv tmp = 0,tmp2 = 0,tmp3 = 0; + unsigned char opc; + uint64_t insn; + int op, r1, r2, r3, d1, d2, x2, b1, b2, i, i2, r1b; + TCGv vl, vd1, vd2, vb; + + opc = ldub_code(s->pc); + LOG_DISAS("opc 0x%x\n", opc); + +#define FETCH_DECODE_RR \ + insn = ld_code2(s->pc); \ + DEBUGINSN \ + r1 = (insn >> 4) & 0xf; \ + r2 = insn & 0xf; + +#define FETCH_DECODE_RX \ + insn = ld_code4(s->pc); \ + DEBUGINSN \ + r1 = (insn >> 20) & 0xf; \ + x2 = (insn >> 16) & 0xf; \ + b2 = (insn >> 12) & 0xf; \ + d2 = insn & 0xfff; \ + tmp = get_address(x2, b2, d2); + +#define FETCH_DECODE_RS \ + insn = ld_code4(s->pc); \ + DEBUGINSN \ + r1 = (insn >> 20) & 0xf; \ + r3 = (insn >> 16) & 0xf; /* aka m3 */ \ + b2 = (insn >> 12) & 0xf; \ + d2 = insn & 0xfff; + +#define FETCH_DECODE_SI \ + insn = ld_code4(s->pc); \ + i2 = (insn >> 16) & 0xff; \ + b1 = (insn >> 12) & 0xf; \ + d1 = insn & 0xfff; \ + tmp = get_address(0, b1, d1); + + switch (opc) { + case 0x7: /* BCR M1,R2 [RR] */ + FETCH_DECODE_RR + if (r2) { + gen_bcr(r1, r2, s->pc); + s->is_jmp = DISAS_JUMP; + } + else { + /* FIXME: "serialization and checkpoint-synchronization function"? */ + } + s->pc += 2; + break; + case 0xa: /* SVC I [RR] */ + insn = ld_code2(s->pc); + DEBUGINSN + i = insn & 0xff; + tmp = tcg_const_i64(s->pc); + tcg_gen_st_i64(tmp, cpu_env, offsetof(CPUState, psw.addr)); + s->is_jmp = DISAS_SVC; + s->pc += 2; + break; + case 0xd: /* BASR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = tcg_const_i64(s->pc + 2); + store_reg(r1, tmp); + if (r2) { + tmp2 = load_reg(r2); + tcg_gen_st_i64(tmp2, cpu_env, offsetof(CPUState, psw.addr)); + s->is_jmp = DISAS_JUMP; + } + s->pc += 2; + break; + case 0x10: /* LPR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp2 = load_reg32(r2); + tmp = tcg_const_i32(r1); + gen_helper_abs_i32(cc, tmp, tmp2); + s->pc += 2; + break; + case 0x11: /* LNR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp2 = load_reg32(r2); + tmp = tcg_const_i32(r1); + gen_helper_nabs_i32(cc, tmp, tmp2); + s->pc += 2; + break; + case 0x12: /* LTR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r2); + if (r1 != r2) store_reg32(r1, tmp); + set_cc_s32(tmp); + s->pc += 2; + break; + case 0x13: /* LCR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r2); + tcg_gen_neg_i32(tmp, tmp); + store_reg32(r1, tmp); + gen_helper_set_cc_comp_s32(cc, tmp); + s->pc += 2; + break; + case 0x14: /* NR R1,R2 [RR] */ + case 0x16: /* OR R1,R2 [RR] */ + case 0x17: /* XR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp2 = load_reg32(r2); + tmp = load_reg32(r1); + switch (opc) { + case 0x14: tcg_gen_and_i32(tmp, tmp, tmp2); break; + case 0x16: tcg_gen_or_i32(tmp, tmp, tmp2); break; + case 0x17: tcg_gen_xor_i32(tmp, tmp, tmp2); break; + default: tcg_abort(); + } + store_reg32(r1, tmp); + set_cc_nz_u32(tmp); + s->pc += 2; + break; + case 0x18: /* LR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r2); + store_reg32(r1, tmp); + s->pc += 2; + break; + case 0x15: /* CLR R1,R2 [RR] */ + case 0x19: /* CR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r1); + tmp2 = load_reg32(r2); + switch (opc) { + case 0x15: cmp_u32(tmp, tmp2); break; + case 0x19: cmp_s32(tmp, tmp2); break; + default: tcg_abort(); + } + s->pc += 2; + break; + case 0x1a: /* AR R1,R2 [RR] */ + case 0x1e: /* ALR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r1); + tmp2 = load_reg32(r2); + tmp3 = tcg_temp_new_i32(); + tcg_gen_add_i32(tmp3, tmp, tmp2); + store_reg32(r1, tmp3); + switch (opc) { + case 0x1a: gen_helper_set_cc_add32(cc, tmp, tmp2, tmp3); break; + case 0x1e: gen_helper_set_cc_addu32(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + s->pc += 2; + break; + case 0x1b: /* SR R1,R2 [RR] */ + case 0x1f: /* SLR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_reg32(r1); + tmp2 = load_reg32(r2); + tmp3 = tcg_temp_new_i32(); + tcg_gen_sub_i32(tmp3, tmp, tmp2); + store_reg32(r1, tmp3); + switch (opc) { + case 0x1b: gen_helper_set_cc_sub32(cc, tmp, tmp2, tmp3); break; + case 0x1f: gen_helper_set_cc_subu32(cc, tmp, tmp2, tmp3); break; + default: tcg_abort(); + } + s->pc += 2; + break; + case 0x28: /* LDR R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_freg(r2); + store_freg(r1, tmp); + s->pc += 2; + break; + case 0x38: /* LER R1,R2 [RR] */ + FETCH_DECODE_RR + tmp = load_freg32(r2); + store_freg32(r1, tmp); + s->pc += 2; + break; + case 0x40: /* STH R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_reg32(r1); + tcg_gen_qemu_st16(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x41: /* la */ + FETCH_DECODE_RX + store_reg(r1, tmp); /* FIXME: 31/24-bit addressing */ + s->pc += 4; + break; + case 0x42: /* STC R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_reg32(r1); + tcg_gen_qemu_st8(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x43: /* IC R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + store_reg8(r1, tmp2); + s->pc += 4; + break; + case 0x44: /* EX R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_reg(r1); + tmp3 = tcg_const_i64(s->pc + 4); + gen_helper_ex(cc, cc, tmp2, tmp, tmp3); + s->pc += 4; + break; + case 0x47: /* BC M1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + /* FIXME: optimize m1 == 0xf (unconditional) case */ + tmp2 = tcg_const_i32(r1); /* aka m1 */ + tmp3 = tcg_const_i64(s->pc); + gen_helper_bc(cc, tmp2, tmp, tmp3); + s->is_jmp = DISAS_JUMP; + s->pc += 4; + break; + case 0x48: /* LH R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld16s(tmp2, tmp, 1); + store_reg32(r1, tmp2); + s->pc += 4; + break; + case 0x49: /* CH R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld16s(tmp2, tmp, 1); + tmp = load_reg32(r1); + cmp_s32(tmp, tmp2); + s->pc += 4; + break; + case 0x4a: /* AH R1,D2(X2,B2) [RX] */ + case 0x4b: /* SH R1,D2(X2,B2) [RX] */ + case 0x4c: /* MH R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld16s(tmp2, tmp, 1); + tmp = load_reg32(r1); + tmp3 = tcg_temp_new_i32(); + switch (opc) { + case 0x4a: + tcg_gen_add_i32(tmp3, tmp, tmp2); + gen_helper_set_cc_add32(cc, tmp, tmp2, tmp3); + break; + case 0x4b: + tcg_gen_sub_i32(tmp3, tmp, tmp2); + gen_helper_set_cc_sub32(cc, tmp, tmp2, tmp3); + break; + case 0x4c: + tcg_gen_mul_i32(tmp3, tmp, tmp2); + break; + default: tcg_abort(); + } + store_reg32(r1, tmp3); + s->pc += 4; + break; + case 0x50: /* st r1, d2(x2, b2) */ + FETCH_DECODE_RX + tmp2 = load_reg32(r1); + tcg_gen_qemu_st32(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x55: /* CL R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tmp = load_reg32(r1); + cmp_u32(tmp, tmp2); + s->pc += 4; + break; + case 0x54: /* N R1,D2(X2,B2) [RX] */ + case 0x56: /* O R1,D2(X2,B2) [RX] */ + case 0x57: /* X R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + tmp = load_reg32(r1); + switch (opc) { + case 0x54: tcg_gen_and_i32(tmp, tmp, tmp2); break; + case 0x56: tcg_gen_or_i32(tmp, tmp, tmp2); break; + case 0x57: tcg_gen_xor_i32(tmp, tmp, tmp2); break; + default: tcg_abort(); + } + store_reg32(r1, tmp); + set_cc_nz_u32(tmp); + s->pc += 4; + break; + case 0x58: /* l r1, d2(x2, b2) */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + store_reg32(r1, tmp2); + s->pc += 4; + break; + case 0x59: /* C R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tmp = load_reg32(r1); + cmp_s32(tmp, tmp2); + s->pc += 4; + break; + case 0x5a: /* A R1,D2(X2,B2) [RX] */ + case 0x5b: /* S R1,D2(X2,B2) [RX] */ + case 0x5e: /* AL R1,D2(X2,B2) [RX] */ + case 0x5f: /* SL R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_reg32(r1); + tcg_gen_qemu_ld32s(tmp, tmp, 1); + tmp3 = tcg_temp_new_i32(); + switch (opc) { + case 0x5a: case 0x5e: tcg_gen_add_i32(tmp3, tmp2, tmp); break; + case 0x5b: case 0x5f: tcg_gen_sub_i32(tmp3, tmp2, tmp); break; + default: tcg_abort(); + } + store_reg32(r1, tmp3); + switch (opc) { + case 0x5a: gen_helper_set_cc_add32(cc, tmp2, tmp, tmp3); break; + case 0x5e: gen_helper_set_cc_addu32(cc, tmp2, tmp, tmp3); break; + case 0x5b: gen_helper_set_cc_sub32(cc, tmp2, tmp, tmp3); break; + case 0x5f: gen_helper_set_cc_subu32(cc, tmp2, tmp, tmp3); break; + default: tcg_abort(); + } + s->pc += 4; + break; + case 0x60: /* STD R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_freg(r1); + tcg_gen_qemu_st64(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x68: /* LD R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i64(); + tcg_gen_qemu_ld64(tmp2, tmp, 1); + store_freg(r1, tmp2); + s->pc += 4; + break; + case 0x70: /* STE R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = load_freg32(r1); + tcg_gen_qemu_st32(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x71: /* MS R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32s(tmp2, tmp, 1); + tmp = load_reg(r1); + tcg_gen_mul_i32(tmp, tmp, tmp2); + store_reg(r1, tmp); + s->pc += 4; + break; + case 0x78: /* LE R1,D2(X2,B2) [RX] */ + FETCH_DECODE_RX + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + store_freg32(r1, tmp2); + s->pc += 4; + break; + case 0x88: /* SRL R1,D2(B2) [RS] */ + case 0x89: /* SLL R1,D2(B2) [RS] */ + case 0x8a: /* SRA R1,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp = get_address(0, b2, d2); + tcg_gen_andi_i64(tmp, tmp, 0x3f); + tmp2 = load_reg32(r1); + switch (opc) { + case 0x88: tcg_gen_shr_i32(tmp2, tmp2, tmp); break; + case 0x89: tcg_gen_shl_i32(tmp2, tmp2, tmp); break; + case 0x8a: tcg_gen_sar_i32(tmp2, tmp2, tmp); break; + default: tcg_abort(); + } + store_reg32(r1, tmp2); + if (opc == 0x8a) set_cc_s32(tmp2); + s->pc += 4; + break; + case 0x91: /* TM D1(B1),I2 [SI] */ + FETCH_DECODE_SI + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + tmp = tcg_const_i32(i2); + gen_helper_tm(cc, tmp2, tmp); + s->pc += 4; + break; + case 0x92: /* MVI D1(B1),I2 [SI] */ + FETCH_DECODE_SI + tmp2 = tcg_const_i32(i2); + tcg_gen_qemu_st8(tmp2, tmp, 1); + s->pc += 4; + break; + case 0x94: /* NI D1(B1),I2 [SI] */ + case 0x96: /* OI D1(B1),I2 [SI] */ + case 0x97: /* XI D1(B1),I2 [SI] */ + FETCH_DECODE_SI + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + switch (opc) { + case 0x94: tcg_gen_andi_i32(tmp2, tmp2, i2); break; + case 0x96: tcg_gen_ori_i32(tmp2, tmp2, i2); break; + case 0x97: tcg_gen_xori_i32(tmp2, tmp2, i2); break; + default: tcg_abort(); + } + tcg_gen_qemu_st8(tmp2, tmp, 1); + set_cc_nz_u32(tmp2); + s->pc += 4; + break; + case 0x95: /* CLI D1(B1),I2 [SI] */ + FETCH_DECODE_SI + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + cmp_u32c(tmp2, i2); + s->pc += 4; + break; + case 0x9b: /* STAM R1,R3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp = tcg_const_i32(r1); + tmp2 = get_address(0, b2, d2); + tmp3 = tcg_const_i32(r3); + gen_helper_stam(tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xa5: + insn = ld_code4(s->pc); + r1 = (insn >> 20) & 0xf; + op = (insn >> 16) & 0xf; + i2 = insn & 0xffff; + disas_a5(s, op, r1, i2); + s->pc += 4; + break; + case 0xa7: + insn = ld_code4(s->pc); + r1 = (insn >> 20) & 0xf; + op = (insn >> 16) & 0xf; + i2 = (short)insn; + disas_a7(s, op, r1, i2); + s->pc += 4; + break; + case 0xa8: /* MVCLE R1,R3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + tmp2 = get_address(0, b2, d2); + gen_helper_mvcle(cc, tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xa9: /* CLCLE R1,R3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp = tcg_const_i32(r1); + tmp3 = tcg_const_i32(r3); + tmp2 = get_address(0, b2, d2); + gen_helper_clcle(cc, tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xb2: + insn = ld_code4(s->pc); + op = (insn >> 16) & 0xff; + switch (op) { + case 0x9c: /* STFPC D2(B2) [S] */ + d2 = insn & 0xfff; + b2 = (insn >> 12) & 0xf; + tmp = tcg_temp_new_i32(); + tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUState, fpc)); + tmp2 = get_address(0, b2, d2); + tcg_gen_qemu_st32(tmp, tmp2, 1); + break; + default: + r1 = (insn >> 4) & 0xf; + r2 = insn & 0xf; + disas_b2(s, op, r1, r2); + break; + } + s->pc += 4; + break; + case 0xb3: + insn = ld_code4(s->pc); + op = (insn >> 16) & 0xff; + r3 = (insn >> 12) & 0xf; /* aka m3 */ + r1 = (insn >> 4) & 0xf; + r2 = insn & 0xf; + disas_b3(s, op, r3, r1, r2); + s->pc += 4; + break; + case 0xb9: + insn = ld_code4(s->pc); + r1 = (insn >> 4) & 0xf; + r2 = insn & 0xf; + op = (insn >> 16) & 0xff; + disas_b9(s, op, r1, r2); + s->pc += 4; + break; + case 0xba: /* CS R1,R3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp = tcg_const_i32(r1); + tmp2 = get_address(0, b2, d2); + tmp3 = tcg_const_i32(r3); + gen_helper_cs(cc, tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xbd: /* CLM R1,M3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp3 = get_address(0, b2, d2); + tmp2 = tcg_const_i32(r3); /* aka m3 */ + tmp = load_reg32(r1); + gen_helper_clm(cc, tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xbe: /* STCM R1,M3,D2(B2) [RS] */ + FETCH_DECODE_RS + tmp3 = get_address(0, b2, d2); + tmp2 = tcg_const_i32(r3); /* aka m3 */ + tmp = load_reg32(r1); + gen_helper_stcm(tmp, tmp2, tmp3); + s->pc += 4; + break; + case 0xbf: /* ICM R1,M3,D2(B2) [RS] */ + FETCH_DECODE_RS + if (r3 == 15) { /* effectively a 32-bit load */ + tmp = get_address(0, b2, d2); + tmp2 = tcg_temp_new_i32(); + tcg_gen_qemu_ld32u(tmp2, tmp, 1); + store_reg32(r1, tmp2); + tmp = tcg_const_i32(r3); + gen_helper_set_cc_icm(cc, tmp, tmp2); + } + else if (r3) { + uint32_t mask = 0x00ffffffUL; + uint32_t shift = 24; + int m3 = r3; + tmp3 = load_reg32(r1); + tmp = get_address(0, b2, d2); + tmp2 = tcg_temp_new_i32(); + while (m3) { + if (m3 & 8) { + tcg_gen_qemu_ld8u(tmp2, tmp, 1); + if (shift) tcg_gen_shli_i32(tmp2, tmp2, shift); + tcg_gen_andi_i32(tmp3, tmp3, mask); + tcg_gen_or_i32(tmp3, tmp3, tmp2); + tcg_gen_addi_i64(tmp, tmp, 1); + } + m3 = (m3 << 1) & 0xf; + mask = (mask >> 8) | 0xff000000UL; + shift -= 8; + } + store_reg32(r1, tmp3); + tmp = tcg_const_i32(r3); + gen_helper_set_cc_icm(cc, tmp, tmp2); + } + else { + tmp = tcg_const_i32(0); + gen_helper_set_cc_icm(cc, tmp, tmp); /* i.e. env->cc = 0 */ + } + s->pc += 4; + break; + case 0xc0: + case 0xc2: + insn = ld_code6(s->pc); + r1 = (insn >> 36) & 0xf; + op = (insn >> 32) & 0xf; + i2 = (int)insn; + switch (opc) { + case 0xc0: disas_c0(s, op, r1, i2); break; + case 0xc2: disas_c2(s, op, r1, i2); break; + default: tcg_abort(); + } + s->pc += 6; + break; + case 0xd2: /* mvc d1(l, b1), d2(b2) */ + case 0xd4: /* NC D1(L,B1),D2(B2) [SS] */ + case 0xd5: /* CLC D1(L,B1),D2(B2) [SS] */ + case 0xd6: /* OC D1(L,B1),D2(B2) [SS] */ + case 0xd7: /* xc d1(l, b1), d2(b2) */ + insn = ld_code6(s->pc); + vl = tcg_const_i32((insn >> 32) & 0xff); + b1 = (insn >> 28) & 0xf; + vd1 = tcg_const_i32((insn >> 16) & 0xfff); + b2 = (insn >> 12) & 0xf; + vd2 = tcg_const_i32(insn & 0xfff); + vb = tcg_const_i32((b1 << 4) | b2); + switch (opc) { + case 0xd2: gen_helper_mvc(vl, vb, vd1, vd2); break; + case 0xd4: gen_helper_nc(cc, vl, vb, vd1, vd2); break; + case 0xd5: gen_helper_clc(cc, vl, vb, vd1, vd2); break; + case 0xd6: gen_helper_oc(cc, vl, vb, vd1, vd2); break; + case 0xd7: gen_helper_xc(cc, vl, vb, vd1, vd2); break; + default: tcg_abort(); break; + } + s->pc += 6; + break; + case 0xe3: + insn = ld_code6(s->pc); + DEBUGINSN + d2 = ( (int) ( (((insn >> 16) & 0xfff) | ((insn << 4) & 0xff000)) << 12 ) ) >> 12; + disas_e3(s, /* op */ insn & 0xff, /* r1 */ (insn >> 36) & 0xf, /* x2 */ (insn >> 32) & 0xf, /* b2 */ (insn >> 28) & 0xf, d2 ); + s->pc += 6; + break; + case 0xeb: + insn = ld_code6(s->pc); + DEBUGINSN + op = insn & 0xff; + r1 = (insn >> 36) & 0xf; + r3 = (insn >> 32) & 0xf; + b2 = (insn >> 28) & 0xf; + d2 = ( (int) ( (((insn >> 16) & 0xfff) | ((insn << 4) & 0xff000)) << 12 ) ) >> 12; + disas_eb(s, op, r1, r3, b2, d2); + s->pc += 6; + break; + case 0xed: + insn = ld_code6(s->pc); + DEBUGINSN + op = insn & 0xff; + r1 = (insn >> 36) & 0xf; + x2 = (insn >> 32) & 0xf; + b2 = (insn >> 28) & 0xf; + d2 = (short)((insn >> 16) & 0xfff); + r1b = (insn >> 12) & 0xf; + disas_ed(s, op, r1, x2, b2, d2, r1b); + s->pc += 6; + break; + default: + LOG_DISAS("unimplemented opcode 0x%x\n", opc); + gen_illegal_opcode(s); + s->pc += 6; + break; + } + if (tmp) tcg_temp_free(tmp); + if (tmp2) tcg_temp_free(tmp2); + if (tmp3) tcg_temp_free(tmp3); +} + +static always_inline void gen_intermediate_code_internal (CPUState *env, + TranslationBlock *tb, + int search_pc) +{ + DisasContext dc; + target_ulong pc_start; + uint64_t next_page_start; + uint16_t *gen_opc_end; + int j, lj = -1; + int num_insns, max_insns; + + pc_start = tb->pc; + + dc.pc = tb->pc; + dc.env = env; + dc.pc = pc_start; + dc.is_jmp = DISAS_NEXT; + + gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; + + next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + + num_insns = 0; + max_insns = tb->cflags & CF_COUNT_MASK; + if (max_insns == 0) + max_insns = CF_COUNT_MASK; + + gen_icount_start(); +#if 1 + cc = tcg_temp_local_new_i32(); + tcg_gen_mov_i32(cc, global_cc); +#else + cc = global_cc; +#endif + do { + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + if (lj < j) { + lj++; + while (lj < j) + gen_opc_instr_start[lj++] = 0; + } + gen_opc_pc[lj] = dc.pc; + gen_opc_instr_start[lj] = 1; + gen_opc_icount[lj] = num_insns; + } + if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) + gen_io_start(); +#if defined S390X_DEBUG_DISAS + LOG_DISAS("pc " TARGET_FMT_lx "\n", + dc.pc); +#endif + disas_s390_insn(env, &dc); + + num_insns++; + } while (!dc.is_jmp && gen_opc_ptr < gen_opc_end && dc.pc < next_page_start && num_insns < max_insns); + tcg_gen_mov_i32(global_cc, cc); + tcg_temp_free(cc); + + if (!dc.is_jmp) { + tcg_gen_st_i64(tcg_const_i64(dc.pc), cpu_env, offsetof(CPUState, psw.addr)); + } + + if (dc.is_jmp == DISAS_SVC) { + tcg_gen_st_i64(tcg_const_i64(dc.pc), cpu_env, offsetof(CPUState, psw.addr)); + TCGv tmp = tcg_const_i32(EXCP_SVC); + gen_helper_exception(tmp); + } + + if (tb->cflags & CF_LAST_IO) + gen_io_end(); + /* Generate the return instruction */ + tcg_gen_exit_tb(0); + gen_icount_end(tb, num_insns); + *gen_opc_ptr = INDEX_op_end; + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + lj++; + while (lj <= j) + gen_opc_instr_start[lj++] = 0; + } else { + tb->size = dc.pc - pc_start; + tb->icount = num_insns; + } +#if defined S390X_DEBUG_DISAS + log_cpu_state_mask(CPU_LOG_TB_CPU, env, 0); + if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { + qemu_log("IN: %s\n", lookup_symbol(pc_start)); + log_target_disas(pc_start, dc.pc - pc_start, 1); + qemu_log("\n"); + } +#endif +} + +void gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) +{ + gen_intermediate_code_internal(env, tb, 0); +} + +void gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) +{ + gen_intermediate_code_internal(env, tb, 1); +} + +void gen_pc_load(CPUState *env, TranslationBlock *tb, + unsigned long searched_pc, int pc_pos, void *puc) +{ + env->psw.addr = gen_opc_pc[pc_pos]; +} -- 1.6.2.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [Qemu-devel] [PATCH 2/4] S/390 host/target build system support 2009-07-24 17:08 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Ulrich Hecht @ 2009-07-24 17:08 ` Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG Ulrich Hecht [not found] ` <m3vdlirkqw.fsf@neno.mitica> 2009-07-25 17:05 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Blue Swirl 1 sibling, 2 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-24 17:08 UTC (permalink / raw) To: qemu-devel; +Cc: aliguori, riku.voipio changes to configure and makefiles for S/390 host and target support Signed-off-by: Ulrich Hecht <uli@suse.de> --- Makefile.target | 9 +++++++++ configure | 20 ++++++++++++++++---- 2 files changed, 25 insertions(+), 4 deletions(-) diff --git a/Makefile.target b/Makefile.target index f9cd42a..42aab86 100644 --- a/Makefile.target +++ b/Makefile.target @@ -84,6 +84,9 @@ CPPFLAGS+=-I$(SRC_PATH)/tcg -I$(SRC_PATH)/tcg/$(ARCH) ifeq ($(ARCH),sparc64) CPPFLAGS+=-I$(SRC_PATH)/tcg/sparc endif +ifeq ($(ARCH),s390x) +CPPFLAGS+=-I$(SRC_PATH)/tcg/s390 +endif ifdef CONFIG_SOFTFLOAT libobj-y += fpu/softfloat.o else @@ -211,6 +214,9 @@ endif ifeq ($(ARCH),s390) LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld endif +ifeq ($(ARCH),s390x) +LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld +endif ifeq ($(ARCH),sparc) # -static is used to avoid g1/g3 usage by the dynamic linker @@ -358,6 +364,9 @@ endif ifeq ($(ARCH),s390) LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld endif +ifeq ($(ARCH),s390x) +LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld +endif ifeq ($(ARCH),sparc) # -static is used to avoid g1/g3 usage by the dynamic linker diff --git a/configure b/configure index e9ed09d..09c8443 100755 --- a/configure +++ b/configure @@ -146,9 +146,12 @@ case "$cpu" in ppc64) cpu="ppc64" ;; - s390*) + s390) cpu="s390" ;; + s390x) + cpu="s390x" + ;; sparc|sun4[cdmuv]) cpu="sparc" ;; @@ -761,6 +764,7 @@ sh4eb-linux-user \ sparc-linux-user \ sparc64-linux-user \ sparc32plus-linux-user \ +s390x-linux-user \ " fi # the following are Darwin specific @@ -825,6 +829,7 @@ hostlongbits="32" if test "$cpu" = "x86_64" \ -o "$cpu" = "alpha" \ -o "$cpu" = "ia64" \ + -o "$cpu" = "s390x" \ -o "$cpu" = "sparc64" \ -o "$cpu" = "ppc64"; then hostlongbits="64" @@ -1516,7 +1521,7 @@ echo "EXESUF=$EXESUF" >> $config_host_mak echo "PTHREADLIBS=$PTHREADLIBS" >> $config_host_mak echo "CLOCKLIBS=$CLOCKLIBS" >> $config_host_mak case "$cpu" in - i386|x86_64|alpha|cris|hppa|ia64|m68k|microblaze|mips|mips64|ppc|ppc64|s390|sparc|sparc64) + i386|x86_64|alpha|cris|hppa|ia64|m68k|microblaze|mips|mips64|ppc|ppc64|s390|s390x|sparc|sparc64) ARCH=$cpu ;; armv4b|armv4l) @@ -1847,7 +1852,7 @@ config_h=$target_dir/config.h target_arch2=`echo $target | cut -d '-' -f 1` target_bigendian="no" case "$target_arch2" in - armeb|m68k|microblaze|mips|mipsn32|mips64|ppc|ppcemb|ppc64|ppc64abi32|sh4eb|sparc|sparc64|sparc32plus) + armeb|m68k|microblaze|mips|mipsn32|mips64|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus) target_bigendian=yes ;; esac @@ -2006,6 +2011,13 @@ case "$target_arch2" in echo "TARGET_ABI32=y" >> $config_mak target_phys_bits=64 ;; + s390x) + echo "TARGET_ARCH=s390x" >> $config_mak + echo "#define TARGET_ARCH \"s390x\"" >> $config_h + echo "#define TARGET_S390X 1" >> $config_h + target_nptl="yes" + target_phys_bits=64 + ;; *) echo "Unsupported target CPU" exit 1 @@ -2075,7 +2087,7 @@ fi echo "TARGET_XML_FILES=$list" >> $config_mak case "$target_arch2" in - arm|armeb|m68k|microblaze|mips|mipsel|mipsn32|mipsn32el|mips64|mips64el|ppc|ppc64|ppc64abi32|ppcemb|sparc|sparc64|sparc32plus) + arm|armeb|m68k|microblaze|mips|mipsel|mipsn32|mipsn32el|mips64|mips64el|ppc|ppc64|ppc64abi32|ppcemb|s390x|sparc|sparc64|sparc32plus) echo "CONFIG_SOFTFLOAT=y" >> $config_mak ;; esac -- 1.6.2.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [Qemu-devel] [PATCH 3/4] S/390 host support for TCG 2009-07-24 17:08 ` [Qemu-devel] [PATCH 2/4] S/390 host/target build system support Ulrich Hecht @ 2009-07-24 17:08 ` Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 4/4] linux-user: S/390 64-bit (s390x) support Ulrich Hecht ` (2 more replies) [not found] ` <m3vdlirkqw.fsf@neno.mitica> 1 sibling, 3 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-24 17:08 UTC (permalink / raw) To: qemu-devel; +Cc: aliguori, riku.voipio S/390 TCG code generator as posted before improvements since last time: - don't use R0 (often means "zero", not "register zero") - optimized add_i32 immediate - formatted for better compliance with the QEMU coding style Signed-off-by: Ulrich Hecht <uli@suse.de> --- dyngen-exec.h | 2 +- linux-user/syscall.c | 2 +- s390x.ld | 194 +++++++++ tcg/s390/tcg-target.c | 1145 +++++++++++++++++++++++++++++++++++++++++++++++++ tcg/s390/tcg-target.h | 76 ++++ 5 files changed, 1417 insertions(+), 2 deletions(-) create mode 100644 s390x.ld create mode 100644 tcg/s390/tcg-target.c create mode 100644 tcg/s390/tcg-target.h diff --git a/dyngen-exec.h b/dyngen-exec.h index c007763..606ee11 100644 --- a/dyngen-exec.h +++ b/dyngen-exec.h @@ -119,7 +119,7 @@ extern int printf(const char *, ...); /* The return address may point to the start of the next instruction. Subtracting one gets us the call instruction itself. */ -#if defined(__s390__) +#if defined(__s390__) && !defined(__s390x__) # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1)) #elif defined(__arm__) /* Thumb return addresses have the low bit set, so we need to subtract two. diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7b57323..4c1961f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -181,7 +181,7 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ #define __NR_sys_inotify_add_watch __NR_inotify_add_watch #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch -#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) +#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || defined(__s390x__) #define __NR__llseek __NR_lseek #endif diff --git a/s390x.ld b/s390x.ld new file mode 100644 index 0000000..7d1f2b7 --- /dev/null +++ b/s390x.ld @@ -0,0 +1,194 @@ +/* Default linker script, for normal executables */ +OUTPUT_FORMAT("elf64-s390", "elf64-s390", + "elf64-s390") +OUTPUT_ARCH(s390:64-bit) +ENTRY(_start) +SEARCH_DIR("/usr/s390x-suse-linux/lib64"); SEARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/s390x-suse-linux/lib"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + PROVIDE (__executable_start = 0x60000000); . = 0x60000000 + SIZEOF_HEADERS; + .interp : { *(.interp) } + .note.gnu.build-id : { *(.note.gnu.build-id) } + .hash : { *(.hash) } + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .rel.init : { *(.rel.init) } + .rela.init : { *(.rela.init) } + .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } + .rel.fini : { *(.rel.fini) } + .rela.fini : { *(.rela.fini) } + .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } + .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } + .rel.data.rel.ro : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) } + .rela.data.rel.ro : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) } + .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } + .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } + .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } + .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } + .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } + .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } + .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : + { + KEEP (*(.init)) + } =0x07070707 + .plt : { *(.plt) } + .text : + { + *(.text .stub .text.* .gnu.linkonce.t.*) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + } =0x07070707 + .fini : + { + KEEP (*(.fini)) + } =0x07070707 + PROVIDE (__etext = .); + PROVIDE (_etext = .); + PROVIDE (etext = .); + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + .eh_frame_hdr : { *(.eh_frame_hdr) } + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } + /* Adjust the address for the data segment. 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The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + KEEP (*crtbegin?.o(.ctors)) + /* We don't want to include the .ctor section from + the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr : { KEEP (*(.jcr)) } + .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) } + .dynamic : { *(.dynamic) } + . = DATA_SEGMENT_RELRO_END (0, .); + .got : { *(.got.plt) *(.got) } + .data : + { + *(.data .data.* .gnu.linkonce.d.*) + SORT(CONSTRUCTORS) + } + .data1 : { *(.data1) } + _edata = .; PROVIDE (edata = .); + __bss_start = .; + .bss : + { + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. + FIXME: Why do we need it? When there is no .bss section, we don't + pad the .data section. */ + . = ALIGN(. != 0 ? 64 / 8 : 1); + } + . = ALIGN(64 / 8); + . = ALIGN(64 / 8); + _end = .; PROVIDE (end = .); + . = DATA_SEGMENT_END (.); + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* DWARF 3 */ + .debug_pubtypes 0 : { *(.debug_pubtypes) } + .debug_ranges 0 : { *(.debug_ranges) } + .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } + /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) } +} diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c new file mode 100644 index 0000000..0b285cd --- /dev/null +++ b/tcg/s390/tcg-target.c @@ -0,0 +1,1145 @@ +/* + * Tiny Code Generator for QEMU + * + * Copyright (c) 2009 Ulrich Hecht <uli@suse.de> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef NDEBUG +static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { + "%r0", + "%r1", + "%r2", + "%r3", + "%r4", + "%r5", + "%r6", + "%r7", + "%r8", + "%r9", + "%r10", + "%r11", + "%r12", + "%r13", + "%r14", + "%r15" +}; +#endif + +static const int tcg_target_reg_alloc_order[] = { + TCG_REG_R6, + TCG_REG_R7, + TCG_REG_R8, + TCG_REG_R9, + TCG_REG_R10, + TCG_REG_R11, + TCG_REG_R12, + TCG_REG_R13, + TCG_REG_R14, + /* TCG_REG_R0, many insns can't be used with R0, so we better avoid it for now */ + TCG_REG_R1, + TCG_REG_R2, + TCG_REG_R3, + TCG_REG_R4, + TCG_REG_R5, +}; + +static const int tcg_target_call_iarg_regs[4] = { + TCG_REG_R2, TCG_REG_R3, TCG_REG_R4, TCG_REG_R5 +}; +static const int tcg_target_call_oarg_regs[2] = { + TCG_REG_R2, TCG_REG_R3 +}; + +static void patch_reloc(uint8_t *code_ptr, int type, + tcg_target_long value, tcg_target_long addend) +{ + switch (type) { + case R_390_PC32DBL: + *(uint32_t*)code_ptr = (value - ((tcg_target_long)code_ptr + addend)) >> 1; + break; + default: + tcg_abort(); + break; + } +} + +/* maximum number of register used for input function arguments */ +static inline int tcg_target_get_call_iarg_regs_count(int flags) +{ + return 4; +} + +#define TCG_CT_CONST_S16 0x100 +#define TCG_CT_CONST_U12 0x200 + +/* parse target specific constraints */ +static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) +{ + const char *ct_str; + + ct->ct |= TCG_CT_REG; + tcg_regset_set32(ct->u.regs, 0, 0xffff); + ct_str = *pct_str; + switch (ct_str[0]) { + case 'L': /* qemu_ld constraint */ + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R2); +#ifdef CONFIG_SOFTMMU + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); +#endif + break; + case 'S': /* qemu_st constraint */ + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R2); +#ifdef CONFIG_SOFTMMU + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); +#endif + break; + case 'R': /* not R0 */ + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0); + break; + case 'I': + ct->ct &= ~TCG_CT_REG; + ct->ct |= TCG_CT_CONST_S16; + break; + default: + break; + } + ct_str++; + *pct_str = ct_str; + + return 0; +} + +/* Test if a constant matches the constraint. */ +static inline int tcg_target_const_match(tcg_target_long val, + const TCGArgConstraint *arg_ct) +{ + int ct; + ct = arg_ct->ct; + if (ct & TCG_CT_CONST) + return 1; + if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) + return 1; + if ((ct & TCG_CT_CONST_U12) && val == (val & 0xfff)) + return 1; + + return 0; +} + +#ifdef CONFIG_SOFTMMU + +#include "../../softmmu_defs.h" + +static void *qemu_ld_helpers[4] = { + __ldb_mmu, + __ldw_mmu, + __ldl_mmu, + __ldq_mmu, +}; + +static void *qemu_st_helpers[4] = { + __stb_mmu, + __stw_mmu, + __stl_mmu, + __stq_mmu, +}; +#endif + +static uint8_t *tb_ret_addr; + +/* signed/unsigned is handled by using COMPARE and COMPARE LOGICAL, + respectively */ +static const uint8_t tcg_cond_to_s390_cond[10] = { + [TCG_COND_EQ] = 8, + [TCG_COND_LT] = 4, + [TCG_COND_LTU] = 4, + [TCG_COND_LE] = 8 | 4, + [TCG_COND_LEU] = 8 | 4, + [TCG_COND_GT] = 2, + [TCG_COND_GTU] = 2, + [TCG_COND_GE] = 8 | 2, + [TCG_COND_GEU] = 8 | 2, + [TCG_COND_NE] = 4 | 2 | 1, +}; + +/* emit load/store (and then some) instructions (E3 prefix) */ +static inline void tcg_out_e3(TCGContext* s, int op, int r1, int r2, int disp) +{ + tcg_out16(s, 0xe300 | (r1 << 4)); + tcg_out32(s, op | (r2 << 28) | ((disp & 0xfff) << 16) | ((disp >> 12) << 8)); +} +#define E3_LG 0x04 +#define E3_LRVG 0x0f +#define E3_LGF 0x14 +#define E3_LGH 0x15 +#define E3_LLGF 0x16 +#define E3_LRV 0x1e +#define E3_LRVH 0x1f +#define E3_CG 0x20 +#define E3_STG 0x24 +#define E3_STRVG 0x2f +#define E3_STRV 0x3e +#define E3_STRVH 0x3f +#define E3_STHY 0x70 +#define E3_STCY 0x72 +#define E3_LGB 0x77 +#define E3_LLGC 0x90 +#define E3_LLGH 0x91 + +/* emit 64-bit register/register insns (B9 prefix) */ +static inline void tcg_out_b9(TCGContext* s, int op, int r1, int r2) +{ + tcg_out32(s, 0xb9000000 | (op << 16) | (r1 << 4) | r2); +} +#define B9_LGR 0x04 +#define B9_AGR 0x08 +#define B9_SGR 0x09 +#define B9_MSGR 0x0c +#define B9_LGFR 0x14 +#define B9_LLGFR 0x16 +#define B9_CGR 0x20 +#define B9_CLGR 0x21 +#define B9_NGR 0x80 +#define B9_OGR 0x81 +#define B9_XGR 0x82 +#define B9_DLGR 0x87 +#define B9_DLR 0x97 + +/* emit (mostly) 32-bit register/register insns */ +static inline void tcg_out_rr(TCGContext* s, int op, int r1, int r2) +{ + tcg_out16(s, (op << 8) | (r1 << 4) | r2); +} +#define RR_BASR 0x0d +#define RR_NR 0x14 +#define RR_CLR 0x15 +#define RR_OR 0x16 +#define RR_XR 0x17 +#define RR_LR 0x18 +#define RR_CR 0x19 +#define RR_AR 0x1a +#define RR_SR 0x1b + +static inline void tcg_out_a7(TCGContext *s, int op, int r1, int16_t i2) +{ + tcg_out32(s, 0xa7000000UL | (r1 << 20) | (op << 16) | ((uint16_t)i2)); +} +#define A7_AHI 0xa +#define A7_AHGI 0xb + +/* emit 64-bit shifts (EB prefix) */ +static inline void tcg_out_sh64(TCGContext* s, int op, int r0, int r1, int r2, int imm) +{ + tcg_out16(s, 0xeb00 | (r0 << 4) | r1); + tcg_out32(s, op | (r2 << 28) | ((imm & 0xfff) << 16) | ((imm >> 12) << 8)); +} +#define SH64_REG_NONE 0 /* use immediate only (not R0!) */ +#define SH64_SRAG 0x0a +#define SH64_SRLG 0x0c +#define SH64_SLLG 0x0d + +/* emit 32-bit shifts */ +static inline void tcg_out_sh32(TCGContext* s, int op, int r0, int r1, int imm) +{ + tcg_out32(s, 0x80000000 | (op << 24) | (r0 << 20) | (r1 << 12) | imm); +} +#define SH32_REG_NONE 0 /* use immediate only (not R0!) */ +#define SH32_SRL 0x8 +#define SH32_SLL 0x9 +#define SH32_SRA 0xa + +/* branch to relative address (long) */ +static inline void tcg_out_brasl(TCGContext* s, int r, tcg_target_long raddr) +{ + tcg_out16(s, 0xc005 | (r << 4)); + tcg_out32(s, raddr >> 1); +} + +/* store 8/16/32 bits */ +static inline void tcg_out_store(TCGContext* s, int op, int r0, int r1, int off) +{ + tcg_out32(s, (op << 24) | (r0 << 20) | (r1 << 12) | off); +} +#define ST_STH 0x40 +#define ST_STC 0x42 +#define ST_ST 0x50 + +/* load a register with an immediate value */ +static inline void tcg_out_movi(TCGContext *s, TCGType type, + int ret, tcg_target_long arg) +{ + //fprintf(stderr,"tcg_out_movi ret 0x%x arg 0x%lx\n",ret,arg); + if (arg >= -0x8000 && arg < 0x8000) { /* signed immediate load */ + /* lghi %rret, arg */ + tcg_out32(s, 0xa7090000 | (ret << 20) | (arg & 0xffff)); + } + else if (!(arg & 0xffffffffffff0000UL)) { + /* llill %rret, arg */ + tcg_out32(s, 0xa50f0000 | (ret << 20) | arg); + } + else if (!(arg & 0xffffffff00000000UL) || type == TCG_TYPE_I32) { + /* llill %rret, arg */ + tcg_out32(s, 0xa50f0000 | (ret << 20) | (arg & 0xffff)); + /* iilh %rret, arg */ + tcg_out32(s, 0xa5020000 | (ret << 20) | ((arg & 0xffffffff) >> 16)); + } + else { + /* branch over constant and store its address in R13 */ + tcg_out_brasl(s, TCG_REG_R13, 14); + /* 64-bit constant */ + tcg_out32(s,arg >> 32); + tcg_out32(s,arg); + /* load constant to ret */ + tcg_out_e3(s, E3_LG, ret, TCG_REG_R13, 0); + } +} + +/* load data without address translation or endianness conversion */ +static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg, + int arg1, tcg_target_long arg2) +{ + int op; + //fprintf(stderr,"tcg_out_ld type %d arg %d arg1 %d arg2 %ld\n",type,arg,arg1,arg2); + + if (type == TCG_TYPE_I32) op = E3_LLGF; /* 32-bit zero-extended */ + else op = E3_LG; /* 64-bit */ + + if (arg2 < -0x80000 || arg2 > 0x7ffff) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, arg2); /* load the displacement */ + tcg_out_b9(s, B9_AGR, TCG_REG_R13, arg1); /* add the address */ + tcg_out_e3(s, op, arg, TCG_REG_R13, 0); /* load the data */ + } + else { + tcg_out_e3(s, op, arg, arg1, arg2); /* load the data */ + } +} + +/* load data with address translation (if applicable) and endianness conversion */ +static void tcg_out_qemu_ld(TCGContext* s, const TCGArg* args, int opc) +{ + int addr_reg, data_reg, mem_index, s_bits; +#if defined(CONFIG_SOFTMMU) + uint16_t *label1_ptr, *label2_ptr; +#endif + + data_reg = *args++; + addr_reg = *args++; + mem_index = *args; + + s_bits = opc & 3; + + int arg0 = TCG_REG_R2; +#ifdef CONFIG_SOFTMMU + int arg1 = TCG_REG_R3; +#endif + + /* fprintf(stderr,"tcg_out_qemu_ld opc %d data_reg %d addr_reg %d mem_index %d s_bits %d\n", + opc, data_reg, addr_reg, mem_index, s_bits); */ + +#ifdef CONFIG_SOFTMMU + tcg_out_b9(s, B9_LGR, arg1, addr_reg); + tcg_out_b9(s, B9_LGR, arg0, addr_reg); + + tcg_out_sh64(s, SH64_SRLG, arg1, addr_reg, SH64_REG_NONE, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); + tcg_out_b9(s, B9_NGR, arg0, TCG_REG_R13); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); + tcg_out_b9(s, B9_NGR, arg1, TCG_REG_R13); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, offsetof(CPUState, tlb_table[mem_index][0].addr_read)); + tcg_out_b9(s, B9_AGR, arg1, TCG_REG_R13); + + tcg_out_b9(s, B9_AGR, arg1, TCG_AREG0); + + tcg_out_e3(s, E3_CG, arg0, arg1, 0); + + label1_ptr = (uint16_t*)s->code_ptr; + tcg_out32(s, 0xa7840000); /* je label1 (offset will be patched in later) */ + + /* call load helper */ +#if TARGET_LONG_BITS == 32 + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); +#else + tcg_out_b9(s, B9_LGR, arg0, addr_reg); +#endif + tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_ulong)qemu_ld_helpers[s_bits]); + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); + + /* sign extension */ + switch (opc) { + case 0 | 4: + tcg_out_sh64(s, SH64_SLLG, data_reg, arg0, SH64_REG_NONE, 56); + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 56); + break; + case 1 | 4: + tcg_out_sh64(s, SH64_SLLG, data_reg, arg0, SH64_REG_NONE, 48); + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 48); + break; + case 2 | 4: + tcg_out_b9(s, B9_LGFR, data_reg, arg0); + break; + case 0: case 1: case 2: case 3: default: + /* unsigned -> just copy */ + tcg_out_b9(s, B9_LGR, data_reg, arg0); + break; + } + + /* jump to label2 (end) */ + label2_ptr = (uint16_t*)s->code_ptr; + tcg_out32(s, 0xa7d50000); /* bras %r13, label2 */ + + /* this is label1, patch branch */ + *(label1_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label1_ptr) >> 1; + + tcg_out_e3(s, E3_LG, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read)); + +#if TARGET_LONG_BITS == 32 + /* zero upper 32 bits */ + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); +#else + /* just copy */ + tcg_out_b9(s, B9_LGR, arg0, addr_reg); +#endif + tcg_out_b9(s, B9_AGR, arg0, arg1); + +#else /* CONFIG_SOFTMMU */ + /* user mode, no address translation required */ + arg0 = addr_reg; +#endif + + switch (opc) { + case 0: /* unsigned byte */ + tcg_out_e3(s, E3_LLGC, data_reg, arg0, 0); + break; + case 0 | 4: /* signed byte */ + tcg_out_e3(s, E3_LGB, data_reg, arg0, 0); + break; + case 1: /* unsigned short */ +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_LLGH, data_reg, arg0, 0); +#else + /* swapped unsigned halfword load with upper bits zeroed */ + tcg_out_e3(s, E3_LRVH, data_reg, arg0, 0); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, 0xffffL); + tcg_out_b9(s, B9_NGR, data_reg, 13); +#endif + break; + case 1 | 4: /* signed short */ +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_LGH, data_reg, arg0, 0); +#else + /* swapped sign-extended halfword load */ + tcg_out_e3(s, E3_LRVH, data_reg, arg0, 0); + tcg_out_sh64(s, SH64_SLLG, data_reg, data_reg, SH64_REG_NONE, 48); + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 48); +#endif + break; + case 2: /* unsigned int */ +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_LLGF, data_reg, arg0, 0); +#else + /* swapped unsigned int load with upper bits zeroed */ + tcg_out_e3(s, E3_LRV, data_reg, arg0, 0); + tcg_out_b9(s, B9_LLGFR, data_reg, data_reg); +#endif + break; + case 2 | 4: /* signed int */ +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_LGF, data_reg, arg0, 0); +#else + /* swapped sign-extended int load */ + tcg_out_e3(s, E3_LRV, data_reg, arg0, 0); + tcg_out_b9(s, B9_LGFR, data_reg, data_reg); +#endif + break; + case 3: /* long (64 bit) */ +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_LG, data_reg, arg0, 0); +#else + tcg_out_e3(s, E3_LRVG, data_reg, arg0, 0); +#endif + break; + default: + tcg_abort(); + } + +#ifdef CONFIG_SOFTMMU + /* this is label2, patch branch */ + *(label2_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label2_ptr) >> 1; +#endif +} + +static void tcg_out_qemu_st(TCGContext* s, const TCGArg* args, int opc) +{ + int addr_reg, data_reg, mem_index, s_bits; +#if defined(CONFIG_SOFTMMU) + uint16_t *label1_ptr, *label2_ptr; +#endif + + data_reg = *args++; + addr_reg = *args++; + mem_index = *args; + + s_bits = opc; + + int arg0 = TCG_REG_R2; +#ifdef CONFIG_SOFTMMU + int arg1 = TCG_REG_R3; + int arg2 = TCG_REG_R4; +#endif + + /* fprintf(stderr,"tcg_out_qemu_st opc %d data_reg %d addr_reg %d mem_index %d s_bits %d\n", + opc, data_reg, addr_reg, mem_index, s_bits); */ + +#ifdef CONFIG_SOFTMMU +#if TARGET_LONG_BITS == 32 + tcg_out_b9(s, B9_LLGFR, arg1, addr_reg); + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); +#else + tcg_out_b9(s, B9_LGR, arg1, addr_reg); + tcg_out_b9(s, B9_LGR, arg0, addr_reg); +#endif + + tcg_out_sh64(s, SH64_SRLG, arg1, addr_reg, SH64_REG_NONE, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); + tcg_out_b9(s, B9_NGR, arg0, TCG_REG_R13); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); + tcg_out_b9(s, B9_NGR, arg1, TCG_REG_R13); + + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, offsetof(CPUState, tlb_table[mem_index][0].addr_write)); + tcg_out_b9(s, B9_AGR, arg1, TCG_REG_R13); + + tcg_out_b9(s, B9_AGR, arg1, TCG_AREG0); + + tcg_out_e3(s, E3_CG, arg0, arg1, 0); + +#if TARGET_LONG_BITS == 32 + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); +#else + tcg_out_b9(s, B9_LGR, arg0, addr_reg); +#endif + + /* jump to label1 */ + label1_ptr = (uint16_t*)s->code_ptr; + tcg_out32(s, 0xa7840000); /* je label1 */ + + /* call store helper */ + tcg_out_b9(s, B9_LGR, arg1, data_reg); + tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_ulong)qemu_st_helpers[s_bits]); + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); + + /* jump to label2 (end) */ + label2_ptr = (uint16_t*)s->code_ptr; + tcg_out32(s, 0xa7d50000); /* bras %r13, label2 */ + + /* this is label1, patch branch */ + *(label1_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label1_ptr) >> 1; + + tcg_out_e3(s, E3_LG, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write)); + +#if TARGET_LONG_BITS == 32 + /* zero upper 32 bits */ + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); +#else + /* just copy */ + tcg_out_b9(s, B9_LGR, arg0, addr_reg); +#endif + tcg_out_b9(s, B9_AGR, arg0, arg1); + +#else /* CONFIG_SOFTMMU */ + /* user mode, no address translation required */ + arg0 = addr_reg; +#endif + + switch (opc) { + case 0: + tcg_out_store(s, ST_STC, data_reg, arg0, 0); + break; + case 1: +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_store(s, ST_STH, data_reg, arg0, 0); +#else + tcg_out_e3(s, E3_STRVH, data_reg, arg0, 0); +#endif + break; + case 2: +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_store(s, ST_ST, data_reg, arg0, 0); +#else + tcg_out_e3(s, E3_STRV, data_reg, arg0, 0); +#endif + break; + case 3: +#ifdef TARGET_WORDS_BIGENDIAN + tcg_out_e3(s, E3_STG, data_reg, arg0, 0); +#else + tcg_out_e3(s, E3_STRVG, data_reg, arg0, 0); +#endif + break; + default: + tcg_abort(); + } + +#ifdef CONFIG_SOFTMMU + /* this is label2, patch branch */ + *(label2_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label2_ptr) >> 1; +#endif +} + +static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, + int arg1, tcg_target_long arg2) +{ + //fprintf(stderr,"tcg_out_st arg 0x%x arg1 0x%x arg2 0x%lx\n",arg,arg1,arg2); + if (type == TCG_TYPE_I32) { + if (((long)arg2) < -0x800 || ((long)arg2) > 0x7ff) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, arg2); + tcg_out_b9(s, B9_AGR, 13, arg1); + tcg_out_store(s, ST_ST, arg, TCG_REG_R13, 0); + } + else tcg_out_store(s, ST_ST, arg, arg1, arg2); + } + else { + if (((long)arg2) < -0x80000 || ((long)arg2) > 0x7ffff) tcg_abort(); + tcg_out_e3(s, E3_STG, arg, arg1, arg2); + } +} + +static inline void tcg_out_op(TCGContext *s, int opc, + const TCGArg *args, const int *const_args) +{ + TCGLabel* l; + int op; + int op2; + //fprintf(stderr,"0x%x\n", INDEX_op_divu_i32); + switch (opc) { + case INDEX_op_exit_tb: + //fprintf(stderr,"op 0x%x exit_tb 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, args[0]); /* return value */ + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (unsigned long)tb_ret_addr); + tcg_out16(s,0x7fd); /* br %r13 */ + break; + case INDEX_op_goto_tb: + //fprintf(stderr,"op 0x%x goto_tb 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (s->tb_jmp_offset) { + tcg_abort(); + } + else { + tcg_target_long off = ((tcg_target_long)(s->tb_next + args[0]) - (tcg_target_long)s->code_ptr) >> 1; + if (off > -0x80000000L && off < 0x7fffffffL) { /* load address relative to PC */ + /* larl %r13, off */ + tcg_out16(s,0xc0d0); tcg_out32(s,off); + } + else { /* too far for larl */ + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_long)(s->tb_next + args[0])); + } + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R13, TCG_REG_R13, 0); /* load address stored at s->tb_next + args[0] */ + tcg_out_rr(s, RR_BASR, TCG_REG_R13, TCG_REG_R13); /* and go there */ + } + s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; + break; + case INDEX_op_call: + //fprintf(stderr,"op 0x%x call 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (const_args[0]) { + tcg_target_long off = (args[0] - (tcg_target_long)s->code_ptr + 4) >> 1; /* FIXME: + 4? Where did that come from? */ + if (off > -0x80000000 && off < 0x7fffffff) { /* relative call */ + tcg_out_brasl(s, TCG_REG_R14, off << 1); + tcg_abort(); // untested + } + else { /* too far for a relative call, load full address */ + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, args[0]); + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); + } + } + else { /* call function in register args[0] */ + tcg_out_rr(s, RR_BASR, TCG_REG_R14, args[0]); + } + break; + case INDEX_op_jmp: + fprintf(stderr,"op 0x%x jmp 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); + break; + case INDEX_op_ld8u_i32: + case INDEX_op_ld8u_i64: + //fprintf(stderr,"op 0x%x ld8u_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if ((long)args[2] > -0x80000 && (long)args[2] < 0x7ffff) { + tcg_out_e3(s, E3_LLGC, args[0], args[1], args[2]); + } + else { /* displacement too large, have to calculate address manually */ + tcg_abort(); + } + break; + case INDEX_op_ld8s_i32: + fprintf(stderr,"op 0x%x ld8s_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); + break; + case INDEX_op_ld16u_i32: + fprintf(stderr,"op 0x%x ld16u_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if ((long)args[2] > -0x80000 && (long)args[2] < 0x7ffff) { + tcg_out_e3(s, E3_LLGH, args[0], args[1], args[2]); + } + else { /* displacement too large, have to calculate address manually */ + tcg_abort(); + } + break; + case INDEX_op_ld16s_i32: + fprintf(stderr,"op 0x%x ld16s_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); + break; + case INDEX_op_ld_i32: + case INDEX_op_ld32u_i64: + tcg_out_ld(s, TCG_TYPE_I32, args[0], args[1], args[2]); + break; + case INDEX_op_ld32s_i64: + if (args[2] < -0x80000 || args[2] > 0x7ffff) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, args[2]); /* load the displacement */ + tcg_out_b9(s, B9_AGR, TCG_REG_R13, args[1]); /* add the address */ + tcg_out_e3(s, E3_LGF, args[0], TCG_REG_R13, 0); /* load the data (sign-extended) */ + } + else { + tcg_out_e3(s, E3_LGF, args[0], args[1], args[2]); /* load the data (sign-extended) */ + } + break; + case INDEX_op_ld_i64: + tcg_out_ld(s, TCG_TYPE_I64, args[0], args[1], args[2]); + break; + case INDEX_op_st8_i32: + case INDEX_op_st8_i64: + //fprintf(stderr,"op 0x%x st8_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (((long)args[2]) >= -0x800 && ((long)args[2]) < 0x800) + tcg_out_store(s, ST_STC, args[0], args[1], args[2]); + else if (((long)args[2]) >= -0x80000 && ((long)args[2]) < 0x80000) { + tcg_out_e3(s, E3_STCY, args[0], args[1], args[2]); /* FIXME: requires long displacement facility */ + tcg_abort(); // untested + } + else tcg_abort(); + break; + case INDEX_op_st16_i32: + case INDEX_op_st16_i64: + //fprintf(stderr,"op 0x%x st16_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (((long)args[2]) >= -0x800 && ((long)args[2]) < 0x800) + tcg_out_store(s, ST_STH, args[0], args[1], args[2]); + else if (((long)args[2]) >= -0x80000 && ((long)args[2]) < 0x80000) { + tcg_out_e3(s, E3_STHY, args[0], args[1], args[2]); /* FIXME: requires long displacement facility */ + tcg_abort(); // untested + } + else tcg_abort(); + break; + case INDEX_op_st_i32: + case INDEX_op_st32_i64: + tcg_out_st(s, TCG_TYPE_I32, args[0], args[1], args[2]); + break; + case INDEX_op_st_i64: + tcg_out_st(s, TCG_TYPE_I64, args[0], args[1], args[2]); + break; + case INDEX_op_mov_i32: + fprintf(stderr,"op 0x%x mov_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); + break; + case INDEX_op_movi_i32: + fprintf(stderr,"op 0x%x movi_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); + break; + case INDEX_op_add_i32: + if (const_args[2]) { + if (args[0] == args[1]) tcg_out_a7(s, A7_AHI, args[1], args[2]); + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); + tcg_out_a7(s, A7_AHI, args[0], args[2]); + } + } + else if (args[0] == args[1]) { + tcg_out_rr(s, RR_AR, args[1], args[2]); + } + else if (args[0] == args[2]) { + tcg_out_rr(s, RR_AR, args[0], args[1]); + } + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); + tcg_out_rr(s, RR_AR, args[0], args[2]); + } + break; + case INDEX_op_sub_i32: + //fprintf(stderr,"op 0x%x sub_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (args[0] == args[1]) { + tcg_out_rr(s, RR_SR, args[1], args[2]); /* sr %ra0/1, %ra2 */ + } + else if (args[0] == args[2]) { + tcg_out_rr(s, RR_LR, TCG_REG_R13, args[2]); /* lr %r13, %raa0/2 */ + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0/2, %ra1 */ + tcg_out_rr(s, RR_SR, args[0], TCG_REG_R13); /* sr %ra0/2, %r13 */ + } + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0, %ra1 */ + tcg_out_rr(s, RR_SR, args[0], args[2]); /* sr %ra0, %ra2 */ + } + break; + + case INDEX_op_sub_i64: + //fprintf(stderr,"op 0x%x sub_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (args[0] == args[1]) { + tcg_out_b9(s, B9_SGR, args[1], args[2]); /* sgr %ra0/1, %ra2 */ + } + else if (args[0] == args[2]) { + tcg_out_b9(s, B9_LGR, TCG_REG_R13, args[2]); /* lgr %r13, %raa0/2 */ + tcg_out_b9(s, B9_LGR, args[0], args[1]); /* lgr %ra0/2, %ra1 */ + tcg_out_b9(s, B9_SGR, args[0], TCG_REG_R13); /* sgr %ra0/2, %r13 */ + } + else { + tcg_out_b9(s, B9_LGR, args[0], args[1]); /* lgr %ra0, %ra1 */ + tcg_out_b9(s, B9_SGR, args[0], args[2]); /* sgr %ra0, %ra2 */ + } + break; + case INDEX_op_add_i64: + //fprintf(stderr,"op 0x%x add_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (args[0] == args[1]) { + tcg_out_b9(s, B9_AGR, args[1], args[2]); + } + else if (args[0] == args[2]) { + tcg_out_b9(s, B9_AGR, args[0], args[1]); + } + else { + tcg_out_b9(s, B9_LGR, args[0], args[1]); + tcg_out_b9(s, B9_AGR, args[0], args[2]); + } + break; + + case INDEX_op_and_i32: + op = RR_NR; +do_logic_i32: + if (args[0] == args[1]) { + tcg_out_rr(s, op, args[1], args[2]); /* xr %ra0/1, %ra2 */ + } + else if (args[0] == args[2]) { + tcg_out_rr(s, op, args[0], args[1]); /* xr %ra0/2, %ra1 */ + } + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0, %ra1 */ + tcg_out_rr(s, op, args[0], args[2]); /* xr %ra0, %ra2 */ + } + break; + case INDEX_op_or_i32: op = RR_OR; goto do_logic_i32; + case INDEX_op_xor_i32: op = RR_XR; goto do_logic_i32; + + case INDEX_op_and_i64: + //fprintf(stderr,"op 0x%x and_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + op = B9_NGR; +do_logic_i64: + if (args[0] == args[1]) { + tcg_out_b9(s, op, args[0], args[2]); + } + else if (args[0] == args[2]) { + tcg_out_b9(s, op, args[0], args[1]); + } + else { + tcg_out_b9(s, B9_LGR, args[0], args[1]); + tcg_out_b9(s, op, args[0], args[2]); + } + break; + case INDEX_op_or_i64: op = B9_OGR; goto do_logic_i64; + case INDEX_op_xor_i64: op = B9_XGR; goto do_logic_i64; + + case INDEX_op_neg_i32: + //fprintf(stderr,"op 0x%x neg_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + /* FIXME: optimize args[0] != args[1] case */ + tcg_out_rr(s, RR_LR, 13, args[1]); + tcg_out32(s, 0xa7090000 | (args[0] << 20)); /* lghi %ra0, 0 */ + tcg_out_rr(s, RR_SR, args[0], 13); + break; + case INDEX_op_neg_i64: + //fprintf(stderr,"op 0x%x neg_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + /* FIXME: optimize args[0] != args[1] case */ + tcg_out_b9(s, B9_LGR, 13, args[1]); + tcg_out32(s, 0xa7090000 | (args[0] << 20)); /* lghi %ra0, 0 */ + tcg_out_b9(s, B9_SGR, args[0], 13); + break; + + case INDEX_op_mul_i32: + //fprintf(stderr,"op 0x%x mul_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (args[0] == args[1]) + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[2]); /* msr %ra0/1, %ra2 */ + else if (args[0] == args[2]) + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[1]); /* msr %ra0/2, %ra1 */ + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[2]); /* msr %ra0, %ra2 */ + } + break; + case INDEX_op_mul_i64: + //fprintf(stderr,"op 0x%x mul_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + if (args[0] == args[1]) { + tcg_out_b9(s, B9_MSGR, args[0], args[2]); + } + else if (args[0] == args[2]) { + tcg_out_b9(s, B9_MSGR, args[0], args[1]); + } + else tcg_abort(); + break; + + case INDEX_op_divu_i32: + case INDEX_op_remu_i32: + //fprintf(stderr,"op 0x%x div/remu_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R12, 0); + tcg_out_rr(s, RR_LR, TCG_REG_R13, args[1]); + tcg_out_b9(s, B9_DLR, TCG_REG_R12, args[2]); + if (opc == INDEX_op_divu_i32) + tcg_out_rr(s, RR_LR, args[0], TCG_REG_R13); /* quotient */ + else + tcg_out_rr(s, RR_LR, args[0], TCG_REG_R12); /* remainder */ + break; + + case INDEX_op_shl_i32: + op = SH32_SLL; op2 = SH64_SLLG; +do_shift32: + if (const_args[2]) { + if (args[0] == args[1]) { + tcg_out_sh32(s, op, args[0], SH32_REG_NONE, args[2]); + } + else { + tcg_out_rr(s, RR_LR, args[0], args[1]); + tcg_out_sh32(s, op, args[0], SH32_REG_NONE, args[2]); + } + } + else { + if (args[0] == args[1]) { + tcg_out_sh32(s, op, args[0], args[2], 0); + } + else + tcg_out_sh64(s, op2, args[0], args[1], args[2], 0); + } + break; + case INDEX_op_shr_i32: op = SH32_SRL; op2 = SH64_SRLG; goto do_shift32; + case INDEX_op_sar_i32: op = SH32_SRA; op2 = SH64_SRAG; goto do_shift32; + + case INDEX_op_shl_i64: + op = SH64_SLLG; +do_shift64: + if (const_args[2]) { + tcg_out_sh64(s, op, args[0], args[1], SH64_REG_NONE, args[2]); + } + else { + tcg_out_sh64(s, op, args[0], args[1], args[2], 0); + } + break; + case INDEX_op_shr_i64: op = SH64_SRLG; goto do_shift64; + case INDEX_op_sar_i64: op = SH64_SRAG; goto do_shift64; + + case INDEX_op_br: + //fprintf(stderr,"op 0x%x br 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); + l = &s->labels[args[0]]; + if (l->has_value) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, l->u.value); + } + else { + /* larl %r13, ... */ + tcg_out16(s, 0xc0d0); + tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, args[0], -2); + s->code_ptr += 4; + } + tcg_out_rr(s, RR_BASR, TCG_REG_R13, TCG_REG_R13); + break; + case INDEX_op_brcond_i64: + //fprintf(stderr,"op 0x%x brcond_i64 0x%lx 0x%lx (c %d) 0x%lx\n",opc,args[0],args[1],const_args[1],args[2]); + if (args[2] > TCG_COND_GT) { /* unsigned */ + tcg_out_b9(s, B9_CLGR, args[0], args[1]); /* clgr %ra0, %ra1 */ + } + else { /* signed */ + tcg_out_b9(s, B9_CGR, args[0], args[1]); /* cgr %ra0, %ra1 */ + } + goto do_brcond; + case INDEX_op_brcond_i32: + //fprintf(stderr,"op 0x%x brcond_i32 0x%lx 0x%lx (c %d) 0x%lx\n",opc,args[0],args[1],const_args[1],args[2]); + if (args[2] > TCG_COND_GT) { /* unsigned */ + tcg_out_rr(s, RR_CLR, args[0], args[1]); /* clr %ra0, %ra1 */ + } + else { /* signed */ + tcg_out_rr(s, RR_CR, args[0], args[1]); /* cr %ra0, %ra1 */ + } +do_brcond: + l = &s->labels[args[3]]; + if (l->has_value) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, l->u.value); + } + else { + /* larl %r13, ... */ + tcg_out16(s, 0xc0d0); + tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, args[3], -2); + s->code_ptr += 4; + } + tcg_out16(s, 0x070d | (tcg_cond_to_s390_cond[args[2]] << 4)); /* bcr cond,%r13 */ + break; + + case INDEX_op_qemu_ld8u: tcg_out_qemu_ld(s, args, 0); break; + case INDEX_op_qemu_ld8s: tcg_out_qemu_ld(s, args, 0 | 4); break; + case INDEX_op_qemu_ld16u: tcg_out_qemu_ld(s, args, 1); break; + case INDEX_op_qemu_ld16s: tcg_out_qemu_ld(s, args, 1 | 4); break; + case INDEX_op_qemu_ld32u: tcg_out_qemu_ld(s, args, 2); break; + case INDEX_op_qemu_ld32s: tcg_out_qemu_ld(s, args, 2 | 4); break; + case INDEX_op_qemu_ld64: tcg_out_qemu_ld(s, args, 3); break; + case INDEX_op_qemu_st8: tcg_out_qemu_st(s, args, 0); break; + case INDEX_op_qemu_st16: tcg_out_qemu_st(s, args, 1); break; + case INDEX_op_qemu_st32: tcg_out_qemu_st(s, args, 2); break; + case INDEX_op_qemu_st64: tcg_out_qemu_st(s, args, 3); break; + + default: + fprintf(stderr,"unimplemented opc 0x%x\n",opc); + tcg_abort(); + } +} + +static const TCGTargetOpDef s390_op_defs[] = { + { INDEX_op_exit_tb, { } }, + { INDEX_op_goto_tb, { } }, + { INDEX_op_call, { "ri" } }, + { INDEX_op_jmp, { "ri" } }, + { INDEX_op_br, { } }, + + { INDEX_op_mov_i32, { "r", "r" } }, + { INDEX_op_movi_i32, { "r" } }, + + { INDEX_op_ld8u_i32, { "r", "r" } }, + { INDEX_op_ld8s_i32, { "r", "r" } }, + { INDEX_op_ld16u_i32, { "r", "r" } }, + { INDEX_op_ld16s_i32, { "r", "r" } }, + { INDEX_op_ld_i32, { "r", "r" } }, + { INDEX_op_st8_i32, { "r", "r" } }, + { INDEX_op_st16_i32, { "r", "r" } }, + { INDEX_op_st_i32, { "r", "r" } }, + + { INDEX_op_add_i32, { "r", "r", "rI" } }, + { INDEX_op_sub_i32, { "r", "r", "r" } }, + { INDEX_op_mul_i32, { "r", "r", "r" } }, + + { INDEX_op_div_i32, { "r", "r", "r" } }, + { INDEX_op_divu_i32, { "r", "r", "r" } }, + { INDEX_op_rem_i32, { "r", "r", "r" } }, + { INDEX_op_remu_i32, { "r", "r", "r" } }, + + { INDEX_op_and_i32, { "r", "r", "r" } }, + { INDEX_op_or_i32, { "r", "r", "r" } }, + { INDEX_op_xor_i32, { "r", "r", "r" } }, + { INDEX_op_neg_i32, { "r", "r" } }, + + { INDEX_op_shl_i32, { "r", "r", "Ri" } }, + { INDEX_op_shr_i32, { "r", "r", "Ri" } }, + { INDEX_op_sar_i32, { "r", "r", "Ri" } }, + + { INDEX_op_brcond_i32, { "r", "r" } }, + + { INDEX_op_qemu_ld8u, { "r", "L" } }, + { INDEX_op_qemu_ld8s, { "r", "L" } }, + { INDEX_op_qemu_ld16u, { "r", "L" } }, + { INDEX_op_qemu_ld16s, { "r", "L" } }, + { INDEX_op_qemu_ld32u, { "r", "L" } }, + { INDEX_op_qemu_ld32s, { "r", "L" } }, + + { INDEX_op_qemu_st8, { "S", "S" } }, + { INDEX_op_qemu_st16, { "S", "S" } }, + { INDEX_op_qemu_st32, { "S", "S" } }, + +#if defined(__s390x__) + { INDEX_op_mov_i64, { "r", "r" } }, + { INDEX_op_movi_i64, { "r" } }, + + { INDEX_op_ld8u_i64, { "r", "r" } }, + { INDEX_op_ld8s_i64, { "r", "r" } }, + { INDEX_op_ld16u_i64, { "r", "r" } }, + { INDEX_op_ld16s_i64, { "r", "r" } }, + { INDEX_op_ld32u_i64, { "r", "r" } }, + { INDEX_op_ld32s_i64, { "r", "r" } }, + { INDEX_op_ld_i64, { "r", "r" } }, + + { INDEX_op_st8_i64, { "r", "r" } }, + { INDEX_op_st16_i64, { "r", "r" } }, + { INDEX_op_st32_i64, { "r", "r" } }, + { INDEX_op_st_i64, { "r", "r" } }, + + { INDEX_op_qemu_ld64, { "L", "L" } }, + { INDEX_op_qemu_st64, { "S", "S" } }, + + { INDEX_op_add_i64, { "r", "r", "r" } }, + { INDEX_op_mul_i64, { "r", "r", "r" } }, + { INDEX_op_sub_i64, { "r", "r", "r" } }, + + { INDEX_op_and_i64, { "r", "r", "r" } }, + { INDEX_op_or_i64, { "r", "r", "r" } }, + { INDEX_op_xor_i64, { "r", "r", "r" } }, + { INDEX_op_neg_i64, { "r", "r" } }, + + { INDEX_op_shl_i64, { "r", "r", "Ri" } }, + { INDEX_op_shr_i64, { "r", "r", "Ri" } }, + { INDEX_op_sar_i64, { "r", "r", "Ri" } }, + + { INDEX_op_brcond_i64, { "r", "r" } }, +#endif + + { -1 }, +}; + +void tcg_target_init(TCGContext *s) +{ + /* fail safe */ + if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry)) + tcg_abort(); + + tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff); + tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff); + tcg_regset_set32(tcg_target_call_clobber_regs, 0, + (1 << TCG_REG_R0) | + (1 << TCG_REG_R1) | + (1 << TCG_REG_R2) | + (1 << TCG_REG_R3) | + (1 << TCG_REG_R4) | + (1 << TCG_REG_R5) | + (1 << TCG_REG_R14)); /* link register */ + + tcg_regset_clear(s->reserved_regs); + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* frequently used as a temporary */ + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R12); /* another temporary */ + + tcg_add_target_add_op_defs(s390_op_defs); +} + +void tcg_target_qemu_prologue(TCGContext *s) +{ + tcg_out16(s,0xeb6f);tcg_out32(s,0xf0300024); /* stmg %r6,%r15,48(%r15) (save registers) */ + tcg_out32(s, 0xa7fbff60); /* aghi %r15,-160 (stack frame) */ + tcg_out16(s,0x7f2); /* br %r2 (go to TB) */ + tb_ret_addr = s->code_ptr; + tcg_out16(s,0xeb6f);tcg_out32(s, 0xf0d00004); /* lmg %r6,%r15,208(%r15) (restore registers) */ + tcg_out16(s,0x7fe); /* br %r14 (return) */ +} + + +static inline void tcg_out_mov(TCGContext *s, int ret, int arg) +{ + tcg_out_b9(s, B9_LGR, ret, arg); +} + +static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) +{ + tcg_abort(); +} diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h new file mode 100644 index 0000000..fcb28d1 --- /dev/null +++ b/tcg/s390/tcg-target.h @@ -0,0 +1,76 @@ +/* + * Tiny Code Generator for QEMU + * + * Copyright (c) 2009 Ulrich Hecht <uli@suse.de> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#define TCG_TARGET_S390 1 + +#define TCG_TARGET_REG_BITS 64 +#define TCG_TARGET_WORDS_BIGENDIAN +#define TCG_TARGET_HAS_div_i32 +#undef TCG_TARGET_HAS_div_i64 +#undef TCG_TARGET_HAS_bswap_i32 +#define TCG_TARGET_HAS_neg_i32 +#define TCG_TARGET_HAS_neg_i64 +#undef TCG_TARGET_STACK_GROWSUP + +enum { + TCG_REG_R0 = 0, + TCG_REG_R1, + TCG_REG_R2, + TCG_REG_R3, + TCG_REG_R4, + TCG_REG_R5, + TCG_REG_R6, + TCG_REG_R7, + TCG_REG_R8, + TCG_REG_R9, + TCG_REG_R10, + TCG_REG_R11, + TCG_REG_R12, + TCG_REG_R13, + TCG_REG_R14, + TCG_REG_R15 +}; +#define TCG_TARGET_NB_REGS 16 + +/* used for function call generation */ +#define TCG_REG_CALL_STACK TCG_REG_R15 +#define TCG_TARGET_STACK_ALIGN 8 +#define TCG_TARGET_CALL_STACK_OFFSET 0 + +enum { + /* Note: must be synced with dyngen-exec.h */ + TCG_AREG0 = TCG_REG_R10, + TCG_AREG1 = TCG_REG_R7, + TCG_AREG2 = TCG_REG_R8, + TCG_AREG3 = TCG_REG_R9, +}; + +static inline void flush_icache_range(unsigned long start, unsigned long stop) +{ +#if QEMU_GNUC_PREREQ(4, 1) + void __clear_cache(char *beg, char *end); + __clear_cache((char *) start, (char *) stop); +#else +#error not implemented +#endif +} -- 1.6.2.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [Qemu-devel] [PATCH 4/4] linux-user: S/390 64-bit (s390x) support 2009-07-24 17:08 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG Ulrich Hecht @ 2009-07-24 17:08 ` Ulrich Hecht 2009-07-24 17:59 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG malc 2009-11-02 17:17 ` Aurelien Jarno 2 siblings, 0 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-24 17:08 UTC (permalink / raw) To: qemu-devel; +Cc: aliguori, riku.voipio code for running 64-bit S/390 Linux binaries Signed-off-by: Ulrich Hecht <uli@suse.de> --- linux-user/elfload.c | 18 ++ linux-user/main.c | 82 +++++++++ linux-user/s390x/syscall.h | 25 +++ linux-user/s390x/syscall_nr.h | 348 ++++++++++++++++++++++++++++++++++++++ linux-user/s390x/target_signal.h | 26 +++ linux-user/s390x/termbits.h | 283 +++++++++++++++++++++++++++++++ linux-user/signal.c | 314 ++++++++++++++++++++++++++++++++++ linux-user/syscall.c | 16 ++- linux-user/syscall_defs.h | 56 ++++++- qemu-binfmt-conf.sh | 5 +- 10 files changed, 1166 insertions(+), 7 deletions(-) create mode 100644 linux-user/s390x/syscall.h create mode 100644 linux-user/s390x/syscall_nr.h create mode 100644 linux-user/s390x/target_signal.h create mode 100644 linux-user/s390x/termbits.h diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 63d0ae4..f0ca9ac 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -679,6 +679,24 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i #endif /* TARGET_ALPHA */ +#ifdef TARGET_S390X + +#define ELF_START_MMAP (0x20000000000ULL) + +#define elf_check_arch(x) ( (x) == ELF_ARCH ) + +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2MSB +#define ELF_ARCH EM_S390 + +static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) +{ + regs->psw.addr = infop->entry; + regs->gprs[15] = infop->start_stack; +} + +#endif /* TARGET_S390X */ + #ifndef ELF_PLATFORM #define ELF_PLATFORM (NULL) #endif diff --git a/linux-user/main.c b/linux-user/main.c index 4388c04..bfb9d1d 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -2309,6 +2309,79 @@ void cpu_loop (CPUState *env) } #endif /* TARGET_ALPHA */ +#ifdef TARGET_S390X +void cpu_loop(CPUS390XState *env) +{ + int trapnr; + target_siginfo_t info; + + while (1) { + trapnr = cpu_s390x_exec (env); + + if ((trapnr & 0xffff0000) == EXCP_EXECUTE_SVC) { + int n = trapnr & 0xffff; + env->regs[2] = do_syscall(env, n, + env->regs[2], + env->regs[3], + env->regs[4], + env->regs[5], + env->regs[6], + env->regs[7]); + } + else switch (trapnr) { + case EXCP_INTERRUPT: + /* just indicate that signals should be handled asap */ + break; + case EXCP_DEBUG: + { + int sig; + + sig = gdb_handlesig (env, TARGET_SIGTRAP); + if (sig) { + info.si_signo = sig; + info.si_errno = 0; + info.si_code = TARGET_TRAP_BRKPT; + queue_signal(env, info.si_signo, &info); + } + } + break; + case EXCP_SVC: + { + int n = ldub(env->psw.addr - 1); + if (!n) n = env->regs[1]; /* syscalls > 255 */ + env->regs[2] = do_syscall(env, n, + env->regs[2], + env->regs[3], + env->regs[4], + env->regs[5], + env->regs[6], + env->regs[7]); + } + break; + case EXCP_ADDR: + { + info.si_signo = SIGSEGV; + info.si_errno = 0; + /* XXX: check env->error_code */ + info.si_code = TARGET_SEGV_MAPERR; + info._sifields._sigfault._addr = env->__excp_addr; + queue_signal(env, info.si_signo, &info); + } + break; + default: + printf ("Unhandled trap: 0x%x\n", trapnr); + if (trapnr == 42) { /* unimplemented insn */ + fprintf(stderr,"insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4)); + } + cpu_dump_state(env, stderr, fprintf, 0); + exit (1); + } + process_pending_signals (env); + } +} + +#endif /* TARGET_S390X */ + static void usage(void) { printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" @@ -2945,6 +3018,15 @@ int main(int argc, char **argv, char **envp) env->regs[15] = regs->acr; env->pc = regs->erp; } +#elif defined(TARGET_S390X) + { + int i; + for (i = 0; i < 16; i++) { + env->regs[i] = regs->gprs[i]; + } + env->psw.mask = regs->psw.mask; + env->psw.addr = regs->psw.addr; + } #else #error unsupported target CPU #endif diff --git a/linux-user/s390x/syscall.h b/linux-user/s390x/syscall.h new file mode 100644 index 0000000..a3812a8 --- /dev/null +++ b/linux-user/s390x/syscall.h @@ -0,0 +1,25 @@ +/* this typedef defines how a Program Status Word looks like */ +typedef struct +{ + abi_ulong mask; + abi_ulong addr; +} __attribute__ ((aligned(8))) target_psw_t; + +/* + * The pt_regs struct defines the way the registers are stored on + * the stack during a system call. + */ + +#define TARGET_NUM_GPRS 16 + +struct target_pt_regs +{ + abi_ulong args[1]; + target_psw_t psw; + abi_ulong gprs[TARGET_NUM_GPRS]; + abi_ulong orig_gpr2; + unsigned short ilc; + unsigned short trap; +}; + +#define UNAME_MACHINE "s390x" diff --git a/linux-user/s390x/syscall_nr.h b/linux-user/s390x/syscall_nr.h new file mode 100644 index 0000000..4a60b9a --- /dev/null +++ b/linux-user/s390x/syscall_nr.h @@ -0,0 +1,348 @@ +/* + * This file contains the system call numbers. + */ + +#define TARGET_NR_exit 1 +#define TARGET_NR_fork 2 +#define TARGET_NR_read 3 +#define TARGET_NR_write 4 +#define TARGET_NR_open 5 +#define TARGET_NR_close 6 +#define TARGET_NR_restart_syscall 7 +#define TARGET_NR_creat 8 +#define TARGET_NR_link 9 +#define TARGET_NR_unlink 10 +#define TARGET_NR_execve 11 +#define TARGET_NR_chdir 12 +#define TARGET_NR_mknod 14 +#define TARGET_NR_chmod 15 +#define TARGET_NR_lseek 19 +#define TARGET_NR_getpid 20 +#define TARGET_NR_mount 21 +#define TARGET_NR_umount 22 +#define TARGET_NR_ptrace 26 +#define TARGET_NR_alarm 27 +#define TARGET_NR_pause 29 +#define TARGET_NR_utime 30 +#define TARGET_NR_access 33 +#define TARGET_NR_nice 34 +#define TARGET_NR_sync 36 +#define TARGET_NR_kill 37 +#define TARGET_NR_rename 38 +#define TARGET_NR_mkdir 39 +#define TARGET_NR_rmdir 40 +#define TARGET_NR_dup 41 +#define TARGET_NR_pipe 42 +#define TARGET_NR_times 43 +#define TARGET_NR_brk 45 +#define TARGET_NR_signal 48 +#define TARGET_NR_acct 51 +#define TARGET_NR_umount2 52 +#define TARGET_NR_ioctl 54 +#define TARGET_NR_fcntl 55 +#define TARGET_NR_setpgid 57 +#define TARGET_NR_umask 60 +#define TARGET_NR_chroot 61 +#define TARGET_NR_ustat 62 +#define TARGET_NR_dup2 63 +#define TARGET_NR_getppid 64 +#define TARGET_NR_getpgrp 65 +#define TARGET_NR_setsid 66 +#define TARGET_NR_sigaction 67 +#define TARGET_NR_sigsuspend 72 +#define TARGET_NR_sigpending 73 +#define TARGET_NR_sethostname 74 +#define TARGET_NR_setrlimit 75 +#define TARGET_NR_getrusage 77 +#define TARGET_NR_gettimeofday 78 +#define TARGET_NR_settimeofday 79 +#define TARGET_NR_symlink 83 +#define TARGET_NR_readlink 85 +#define TARGET_NR_uselib 86 +#define TARGET_NR_swapon 87 +#define TARGET_NR_reboot 88 +#define TARGET_NR_readdir 89 +#define TARGET_NR_mmap 90 +#define TARGET_NR_munmap 91 +#define TARGET_NR_truncate 92 +#define TARGET_NR_ftruncate 93 +#define TARGET_NR_fchmod 94 +#define TARGET_NR_getpriority 96 +#define TARGET_NR_setpriority 97 +#define TARGET_NR_statfs 99 +#define TARGET_NR_fstatfs 100 +#define TARGET_NR_socketcall 102 +#define TARGET_NR_syslog 103 +#define TARGET_NR_setitimer 104 +#define TARGET_NR_getitimer 105 +#define TARGET_NR_stat 106 +#define TARGET_NR_lstat 107 +#define TARGET_NR_fstat 108 +#define TARGET_NR_lookup_dcookie 110 +#define TARGET_NR_vhangup 111 +#define TARGET_NR_idle 112 +#define TARGET_NR_wait4 114 +#define TARGET_NR_swapoff 115 +#define TARGET_NR_sysinfo 116 +#define TARGET_NR_ipc 117 +#define TARGET_NR_fsync 118 +#define TARGET_NR_sigreturn 119 +#define TARGET_NR_clone 120 +#define TARGET_NR_setdomainname 121 +#define TARGET_NR_uname 122 +#define TARGET_NR_adjtimex 124 +#define TARGET_NR_mprotect 125 +#define TARGET_NR_sigprocmask 126 +#define TARGET_NR_create_module 127 +#define TARGET_NR_init_module 128 +#define TARGET_NR_delete_module 129 +#define TARGET_NR_get_kernel_syms 130 +#define TARGET_NR_quotactl 131 +#define TARGET_NR_getpgid 132 +#define TARGET_NR_fchdir 133 +#define TARGET_NR_bdflush 134 +#define TARGET_NR_sysfs 135 +#define TARGET_NR_personality 136 +#define TARGET_NR_afs_syscall 137 /* Syscall for Andrew File System */ +#define TARGET_NR_getdents 141 +#define TARGET_NR_flock 143 +#define TARGET_NR_msync 144 +#define TARGET_NR_readv 145 +#define TARGET_NR_writev 146 +#define TARGET_NR_getsid 147 +#define TARGET_NR_fdatasync 148 +#define TARGET_NR__sysctl 149 +#define TARGET_NR_mlock 150 +#define TARGET_NR_munlock 151 +#define TARGET_NR_mlockall 152 +#define TARGET_NR_munlockall 153 +#define TARGET_NR_sched_setparam 154 +#define TARGET_NR_sched_getparam 155 +#define TARGET_NR_sched_setscheduler 156 +#define TARGET_NR_sched_getscheduler 157 +#define TARGET_NR_sched_yield 158 +#define TARGET_NR_sched_get_priority_max 159 +#define TARGET_NR_sched_get_priority_min 160 +#define TARGET_NR_sched_rr_get_interval 161 +#define TARGET_NR_nanosleep 162 +#define TARGET_NR_mremap 163 +#define TARGET_NR_query_module 167 +#define TARGET_NR_poll 168 +#define TARGET_NR_nfsservctl 169 +#define TARGET_NR_prctl 172 +#define TARGET_NR_rt_sigreturn 173 +#define TARGET_NR_rt_sigaction 174 +#define TARGET_NR_rt_sigprocmask 175 +#define TARGET_NR_rt_sigpending 176 +#define TARGET_NR_rt_sigtimedwait 177 +#define TARGET_NR_rt_sigqueueinfo 178 +#define TARGET_NR_rt_sigsuspend 179 +#define TARGET_NR_pread64 180 +#define TARGET_NR_pwrite64 181 +#define TARGET_NR_getcwd 183 +#define TARGET_NR_capget 184 +#define TARGET_NR_capset 185 +#define TARGET_NR_sigaltstack 186 +#define TARGET_NR_sendfile 187 +#define TARGET_NR_getpmsg 188 +#define TARGET_NR_putpmsg 189 +#define TARGET_NR_vfork 190 +#define TARGET_NR_pivot_root 217 +#define TARGET_NR_mincore 218 +#define TARGET_NR_madvise 219 +#define TARGET_NR_getdents64 220 +#define TARGET_NR_readahead 222 +#define TARGET_NR_setxattr 224 +#define TARGET_NR_lsetxattr 225 +#define TARGET_NR_fsetxattr 226 +#define TARGET_NR_getxattr 227 +#define TARGET_NR_lgetxattr 228 +#define TARGET_NR_fgetxattr 229 +#define TARGET_NR_listxattr 230 +#define TARGET_NR_llistxattr 231 +#define TARGET_NR_flistxattr 232 +#define TARGET_NR_removexattr 233 +#define TARGET_NR_lremovexattr 234 +#define TARGET_NR_fremovexattr 235 +#define TARGET_NR_gettid 236 +#define TARGET_NR_tkill 237 +#define TARGET_NR_futex 238 +#define TARGET_NR_sched_setaffinity 239 +#define TARGET_NR_sched_getaffinity 240 +#define TARGET_NR_tgkill 241 +/* Number 242 is reserved for tux */ +#define TARGET_NR_io_setup 243 +#define TARGET_NR_io_destroy 244 +#define TARGET_NR_io_getevents 245 +#define TARGET_NR_io_submit 246 +#define TARGET_NR_io_cancel 247 +#define TARGET_NR_exit_group 248 +#define TARGET_NR_epoll_create 249 +#define TARGET_NR_epoll_ctl 250 +#define TARGET_NR_epoll_wait 251 +#define TARGET_NR_set_tid_address 252 +#define TARGET_NR_fadvise64 253 +#define TARGET_NR_timer_create 254 +#define TARGET_NR_timer_settime (TARGET_NR_timer_create+1) +#define TARGET_NR_timer_gettime (TARGET_NR_timer_create+2) +#define TARGET_NR_timer_getoverrun (TARGET_NR_timer_create+3) +#define TARGET_NR_timer_delete (TARGET_NR_timer_create+4) +#define TARGET_NR_clock_settime (TARGET_NR_timer_create+5) +#define TARGET_NR_clock_gettime (TARGET_NR_timer_create+6) +#define TARGET_NR_clock_getres (TARGET_NR_timer_create+7) +#define TARGET_NR_clock_nanosleep (TARGET_NR_timer_create+8) +/* Number 263 is reserved for vserver */ +#define TARGET_NR_statfs64 265 +#define TARGET_NR_fstatfs64 266 +#define TARGET_NR_remap_file_pages 267 +/* Number 268 is reserved for new sys_mbind */ +/* Number 269 is reserved for new sys_get_mempolicy */ +/* Number 270 is reserved for new sys_set_mempolicy */ +#define TARGET_NR_mq_open 271 +#define TARGET_NR_mq_unlink 272 +#define TARGET_NR_mq_timedsend 273 +#define TARGET_NR_mq_timedreceive 274 +#define TARGET_NR_mq_notify 275 +#define TARGET_NR_mq_getsetattr 276 +#define TARGET_NR_kexec_load 277 +#define TARGET_NR_add_key 278 +#define TARGET_NR_request_key 279 +#define TARGET_NR_keyctl 280 +#define TARGET_NR_waitid 281 +#define TARGET_NR_ioprio_set 282 +#define TARGET_NR_ioprio_get 283 +#define TARGET_NR_inotify_init 284 +#define TARGET_NR_inotify_add_watch 285 +#define TARGET_NR_inotify_rm_watch 286 +/* Number 287 is reserved for new sys_migrate_pages */ +#define TARGET_NR_openat 288 +#define TARGET_NR_mkdirat 289 +#define TARGET_NR_mknodat 290 +#define TARGET_NR_fchownat 291 +#define TARGET_NR_futimesat 292 +#define TARGET_NR_unlinkat 294 +#define TARGET_NR_renameat 295 +#define TARGET_NR_linkat 296 +#define TARGET_NR_symlinkat 297 +#define TARGET_NR_readlinkat 298 +#define TARGET_NR_fchmodat 299 +#define TARGET_NR_faccessat 300 +#define TARGET_NR_pselect6 301 +#define TARGET_NR_ppoll 302 +#define TARGET_NR_unshare 303 +#define TARGET_NR_set_robust_list 304 +#define TARGET_NR_get_robust_list 305 +#define TARGET_NR_splice 306 +#define TARGET_NR_sync_file_range 307 +#define TARGET_NR_tee 308 +#define TARGET_NR_vmsplice 309 +/* Number 310 is reserved for new sys_move_pages */ +#define TARGET_NR_getcpu 311 +#define TARGET_NR_epoll_pwait 312 +#define TARGET_NR_utimes 313 +#define TARGET_NR_fallocate 314 +#define TARGET_NR_utimensat 315 +#define TARGET_NR_signalfd 316 +#define TARGET_NR_timerfd 317 +#define TARGET_NR_eventfd 318 +#define TARGET_NR_timerfd_create 319 +#define TARGET_NR_timerfd_settime 320 +#define TARGET_NR_timerfd_gettime 321 +#define TARGET_NR_signalfd4 322 +#define TARGET_NR_eventfd2 323 +#define TARGET_NR_inotify_init1 324 +#define TARGET_NR_pipe2 325 +#define TARGET_NR_dup3 326 +#define TARGET_NR_epoll_create1 327 +#define NR_syscalls 328 + +/* + * There are some system calls that are not present on 64 bit, some + * have a different name although they do the same (e.g. TARGET_NR_chown32 + * is TARGET_NR_chown on 64 bit). + */ +#ifndef TARGET_S390X + +#define TARGET_NR_time 13 +#define TARGET_NR_lchown 16 +#define TARGET_NR_setuid 23 +#define TARGET_NR_getuid 24 +#define TARGET_NR_stime 25 +#define TARGET_NR_setgid 46 +#define TARGET_NR_getgid 47 +#define TARGET_NR_geteuid 49 +#define TARGET_NR_getegid 50 +#define TARGET_NR_setreuid 70 +#define TARGET_NR_setregid 71 +#define TARGET_NR_getrlimit 76 +#define TARGET_NR_getgroups 80 +#define TARGET_NR_setgroups 81 +#define TARGET_NR_fchown 95 +#define TARGET_NR_ioperm 101 +#define TARGET_NR_setfsuid 138 +#define TARGET_NR_setfsgid 139 +#define TARGET_NR__llseek 140 +#define TARGET_NR__newselect 142 +#define TARGET_NR_setresuid 164 +#define TARGET_NR_getresuid 165 +#define TARGET_NR_setresgid 170 +#define TARGET_NR_getresgid 171 +#define TARGET_NR_chown 182 +#define TARGET_NR_ugetrlimit 191 /* SuS compliant getrlimit */ +#define TARGET_NR_mmap2 192 +#define TARGET_NR_truncate64 193 +#define TARGET_NR_ftruncate64 194 +#define TARGET_NR_stat64 195 +#define TARGET_NR_lstat64 196 +#define TARGET_NR_fstat64 197 +#define TARGET_NR_lchown32 198 +#define TARGET_NR_getuid32 199 +#define TARGET_NR_getgid32 200 +#define TARGET_NR_geteuid32 201 +#define TARGET_NR_getegid32 202 +#define TARGET_NR_setreuid32 203 +#define TARGET_NR_setregid32 204 +#define TARGET_NR_getgroups32 205 +#define TARGET_NR_setgroups32 206 +#define TARGET_NR_fchown32 207 +#define TARGET_NR_setresuid32 208 +#define TARGET_NR_getresuid32 209 +#define TARGET_NR_setresgid32 210 +#define TARGET_NR_getresgid32 211 +#define TARGET_NR_chown32 212 +#define TARGET_NR_setuid32 213 +#define TARGET_NR_setgid32 214 +#define TARGET_NR_setfsuid32 215 +#define TARGET_NR_setfsgid32 216 +#define TARGET_NR_fcntl64 221 +#define TARGET_NR_sendfile64 223 +#define TARGET_NR_fadvise64_64 264 +#define TARGET_NR_fstatat64 293 + +#else + +#define TARGET_NR_select 142 +#define TARGET_NR_getrlimit 191 /* SuS compliant getrlimit */ +#define TARGET_NR_lchown 198 +#define TARGET_NR_getuid 199 +#define TARGET_NR_getgid 200 +#define TARGET_NR_geteuid 201 +#define TARGET_NR_getegid 202 +#define TARGET_NR_setreuid 203 +#define TARGET_NR_setregid 204 +#define TARGET_NR_getgroups 205 +#define TARGET_NR_setgroups 206 +#define TARGET_NR_fchown 207 +#define TARGET_NR_setresuid 208 +#define TARGET_NR_getresuid 209 +#define TARGET_NR_setresgid 210 +#define TARGET_NR_getresgid 211 +#define TARGET_NR_chown 212 +#define TARGET_NR_setuid 213 +#define TARGET_NR_setgid 214 +#define TARGET_NR_setfsuid 215 +#define TARGET_NR_setfsgid 216 +#define TARGET_NR_newfstatat 293 + +#endif + diff --git a/linux-user/s390x/target_signal.h b/linux-user/s390x/target_signal.h new file mode 100644 index 0000000..b4816b0 --- /dev/null +++ b/linux-user/s390x/target_signal.h @@ -0,0 +1,26 @@ +#ifndef TARGET_SIGNAL_H +#define TARGET_SIGNAL_H + +#include "cpu.h" + +typedef struct target_sigaltstack { + abi_ulong ss_sp; + int ss_flags; + abi_ulong ss_size; +} target_stack_t; + +/* + * sigaltstack controls + */ +#define TARGET_SS_ONSTACK 1 +#define TARGET_SS_DISABLE 2 + +#define TARGET_MINSIGSTKSZ 2048 +#define TARGET_SIGSTKSZ 8192 + +static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state) +{ + return state->regs[15]; +} + +#endif /* TARGET_SIGNAL_H */ diff --git a/linux-user/s390x/termbits.h b/linux-user/s390x/termbits.h new file mode 100644 index 0000000..2a78a05 --- /dev/null +++ b/linux-user/s390x/termbits.h @@ -0,0 +1,283 @@ +/* + * include/asm-s390/termbits.h + * + * S390 version + * + * Derived from "include/asm-i386/termbits.h" + */ + +#define TARGET_NCCS 19 +struct target_termios { + unsigned int c_iflag; /* input mode flags */ + unsigned int c_oflag; /* output mode flags */ + unsigned int c_cflag; /* control mode flags */ + unsigned int c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[TARGET_NCCS]; /* control characters */ +}; + +struct target_termios2 { + unsigned int c_iflag; /* input mode flags */ + unsigned int c_oflag; /* output mode flags */ + unsigned int c_cflag; /* control mode flags */ + unsigned int c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[TARGET_NCCS]; /* control characters */ + unsigned int c_ispeed; /* input speed */ + unsigned int c_ospeed; /* output speed */ +}; + +struct target_ktermios { + unsigned int c_iflag; /* input mode flags */ + unsigned int c_oflag; /* output mode flags */ + unsigned int c_cflag; /* control mode flags */ + unsigned int c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[TARGET_NCCS]; /* control characters */ + unsigned int c_ispeed; /* input speed */ + unsigned int c_ospeed; /* output speed */ +}; + +/* c_cc characters */ +#define TARGET_VINTR 0 +#define TARGET_VQUIT 1 +#define TARGET_VERASE 2 +#define TARGET_VKILL 3 +#define TARGET_VEOF 4 +#define TARGET_VTIME 5 +#define TARGET_VMIN 6 +#define TARGET_VSWTC 7 +#define TARGET_VSTART 8 +#define TARGET_VSTOP 9 +#define TARGET_VSUSP 10 +#define TARGET_VEOL 11 +#define TARGET_VREPRINT 12 +#define TARGET_VDISCARD 13 +#define TARGET_VWERASE 14 +#define TARGET_VLNEXT 15 +#define TARGET_VEOL2 16 + +/* c_iflag bits */ +#define TARGET_IGNBRK 0000001 +#define TARGET_BRKINT 0000002 +#define TARGET_IGNPAR 0000004 +#define TARGET_PARMRK 0000010 +#define TARGET_INPCK 0000020 +#define TARGET_ISTRIP 0000040 +#define TARGET_INLCR 0000100 +#define TARGET_IGNCR 0000200 +#define TARGET_ICRNL 0000400 +#define TARGET_IUCLC 0001000 +#define TARGET_IXON 0002000 +#define TARGET_IXANY 0004000 +#define TARGET_IXOFF 0010000 +#define TARGET_IMAXBEL 0020000 +#define TARGET_IUTF8 0040000 + +/* c_oflag bits */ +#define TARGET_OPOST 0000001 +#define TARGET_OLCUC 0000002 +#define TARGET_ONLCR 0000004 +#define TARGET_OCRNL 0000010 +#define TARGET_ONOCR 0000020 +#define TARGET_ONLRET 0000040 +#define TARGET_OFILL 0000100 +#define TARGET_OFDEL 0000200 +#define TARGET_NLDLY 0000400 +#define TARGET_NL0 0000000 +#define TARGET_NL1 0000400 +#define TARGET_CRDLY 0003000 +#define TARGET_CR0 0000000 +#define TARGET_CR1 0001000 +#define TARGET_CR2 0002000 +#define TARGET_CR3 0003000 +#define TARGET_TABDLY 0014000 +#define TARGET_TAB0 0000000 +#define TARGET_TAB1 0004000 +#define TARGET_TAB2 0010000 +#define TARGET_TAB3 0014000 +#define TARGET_XTABS 0014000 +#define TARGET_BSDLY 0020000 +#define TARGET_BS0 0000000 +#define TARGET_BS1 0020000 +#define TARGET_VTDLY 0040000 +#define TARGET_VT0 0000000 +#define TARGET_VT1 0040000 +#define TARGET_FFDLY 0100000 +#define TARGET_FF0 0000000 +#define TARGET_FF1 0100000 + +/* c_cflag bit meaning */ +#define TARGET_CBAUD 0010017 +#define TARGET_B0 0000000 /* hang up */ +#define TARGET_B50 0000001 +#define TARGET_B75 0000002 +#define TARGET_B110 0000003 +#define TARGET_B134 0000004 +#define TARGET_B150 0000005 +#define TARGET_B200 0000006 +#define TARGET_B300 0000007 +#define TARGET_B600 0000010 +#define TARGET_B1200 0000011 +#define TARGET_B1800 0000012 +#define TARGET_B2400 0000013 +#define TARGET_B4800 0000014 +#define TARGET_B9600 0000015 +#define TARGET_B19200 0000016 +#define TARGET_B38400 0000017 +#define TARGET_EXTA B19200 +#define TARGET_EXTB B38400 +#define TARGET_CSIZE 0000060 +#define TARGET_CS5 0000000 +#define TARGET_CS6 0000020 +#define TARGET_CS7 0000040 +#define TARGET_CS8 0000060 +#define TARGET_CSTOPB 0000100 +#define TARGET_CREAD 0000200 +#define TARGET_PARENB 0000400 +#define TARGET_PARODD 0001000 +#define TARGET_HUPCL 0002000 +#define TARGET_CLOCAL 0004000 +#define TARGET_CBAUDEX 0010000 +#define TARGET_BOTHER 0010000 +#define TARGET_B57600 0010001 +#define TARGET_B115200 0010002 +#define TARGET_B230400 0010003 +#define TARGET_B460800 0010004 +#define TARGET_B500000 0010005 +#define TARGET_B576000 0010006 +#define TARGET_B921600 0010007 +#define TARGET_B1000000 0010010 +#define TARGET_B1152000 0010011 +#define TARGET_B1500000 0010012 +#define TARGET_B2000000 0010013 +#define TARGET_B2500000 0010014 +#define TARGET_B3000000 0010015 +#define TARGET_B3500000 0010016 +#define TARGET_B4000000 0010017 +#define TARGET_CIBAUD 002003600000 /* input baud rate */ +#define TARGET_CMSPAR 010000000000 /* mark or space (stick) parity */ +#define TARGET_CRTSCTS 020000000000 /* flow control */ + +#define TARGET_IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ + +/* c_lflag bits */ +#define TARGET_ISIG 0000001 +#define TARGET_ICANON 0000002 +#define TARGET_XCASE 0000004 +#define TARGET_ECHO 0000010 +#define TARGET_ECHOE 0000020 +#define TARGET_ECHOK 0000040 +#define TARGET_ECHONL 0000100 +#define TARGET_NOFLSH 0000200 +#define TARGET_TOSTOP 0000400 +#define TARGET_ECHOCTL 0001000 +#define TARGET_ECHOPRT 0002000 +#define TARGET_ECHOKE 0004000 +#define TARGET_FLUSHO 0010000 +#define TARGET_PENDIN 0040000 +#define TARGET_IEXTEN 0100000 + +/* tcflow() and TCXONC use these */ +#define TARGET_TCOOFF 0 +#define TARGET_TCOON 1 +#define TARGET_TCIOFF 2 +#define TARGET_TCION 3 + +/* tcflush() and TCFLSH use these */ +#define TARGET_TCIFLUSH 0 +#define TARGET_TCOFLUSH 1 +#define TARGET_TCIOFLUSH 2 + +/* tcsetattr uses these */ +#define TARGET_TCSANOW 0 +#define TARGET_TCSADRAIN 1 +#define TARGET_TCSAFLUSH 2 + +/* + * include/asm-s390/ioctls.h + * + * S390 version + * + * Derived from "include/asm-i386/ioctls.h" + */ + +/* 0x54 is just a magic number to make these relatively unique ('T') */ + +#define TARGET_TCGETS 0x5401 +#define TARGET_TCSETS 0x5402 +#define TARGET_TCSETSW 0x5403 +#define TARGET_TCSETSF 0x5404 +#define TARGET_TCGETA 0x5405 +#define TARGET_TCSETA 0x5406 +#define TARGET_TCSETAW 0x5407 +#define TARGET_TCSETAF 0x5408 +#define TARGET_TCSBRK 0x5409 +#define TARGET_TCXONC 0x540A +#define TARGET_TCFLSH 0x540B +#define TARGET_TIOCEXCL 0x540C +#define TARGET_TIOCNXCL 0x540D +#define TARGET_TIOCSCTTY 0x540E +#define TARGET_TIOCGPGRP 0x540F +#define TARGET_TIOCSPGRP 0x5410 +#define TARGET_TIOCOUTQ 0x5411 +#define TARGET_TIOCSTI 0x5412 +#define TARGET_TIOCGWINSZ 0x5413 +#define TARGET_TIOCSWINSZ 0x5414 +#define TARGET_TIOCMGET 0x5415 +#define TARGET_TIOCMBIS 0x5416 +#define TARGET_TIOCMBIC 0x5417 +#define TARGET_TIOCMSET 0x5418 +#define TARGET_TIOCGSOFTCAR 0x5419 +#define TARGET_TIOCSSOFTCAR 0x541A +#define TARGET_FIONREAD 0x541B +#define TARGET_TIOCINQ FIONREAD +#define TARGET_TIOCLINUX 0x541C +#define TARGET_TIOCCONS 0x541D +#define TARGET_TIOCGSERIAL 0x541E +#define TARGET_TIOCSSERIAL 0x541F +#define TARGET_TIOCPKT 0x5420 +#define TARGET_FIONBIO 0x5421 +#define TARGET_TIOCNOTTY 0x5422 +#define TARGET_TIOCSETD 0x5423 +#define TARGET_TIOCGETD 0x5424 +#define TARGET_TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ +#define TARGET_TIOCSBRK 0x5427 /* BSD compatibility */ +#define TARGET_TIOCCBRK 0x5428 /* BSD compatibility */ +#define TARGET_TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TARGET_TCGETS2 _IOR('T',0x2A, struct termios2) +#define TARGET_TCSETS2 _IOW('T',0x2B, struct termios2) +#define TARGET_TCSETSW2 _IOW('T',0x2C, struct termios2) +#define TARGET_TCSETSF2 _IOW('T',0x2D, struct termios2) +#define TARGET_TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ +#define TARGET_TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ +#define TARGET_TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */ + +#define TARGET_FIONCLEX 0x5450 /* these numbers need to be adjusted. */ +#define TARGET_FIOCLEX 0x5451 +#define TARGET_FIOASYNC 0x5452 +#define TARGET_TIOCSERCONFIG 0x5453 +#define TARGET_TIOCSERGWILD 0x5454 +#define TARGET_TIOCSERSWILD 0x5455 +#define TARGET_TIOCGLCKTRMIOS 0x5456 +#define TARGET_TIOCSLCKTRMIOS 0x5457 +#define TARGET_TIOCSERGSTRUCT 0x5458 /* For debugging only */ +#define TARGET_TIOCSERGETLSR 0x5459 /* Get line status register */ +#define TARGET_TIOCSERGETMULTI 0x545A /* Get multiport config */ +#define TARGET_TIOCSERSETMULTI 0x545B /* Set multiport config */ + +#define TARGET_TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ +#define TARGET_TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ +#define TARGET_FIOQSIZE 0x545E + +/* Used for packet mode */ +#define TARGET_TIOCPKT_DATA 0 +#define TARGET_TIOCPKT_FLUSHREAD 1 +#define TARGET_TIOCPKT_FLUSHWRITE 2 +#define TARGET_TIOCPKT_STOP 4 +#define TARGET_TIOCPKT_START 8 +#define TARGET_TIOCPKT_NOSTOP 16 +#define TARGET_TIOCPKT_DOSTOP 32 + +#define TARGET_TIOCSER_TEMT 0x01 /* Transmitter physically empty */ + diff --git a/linux-user/signal.c b/linux-user/signal.c index b2c0623..e429175 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -3432,6 +3432,320 @@ long do_rt_sigreturn(CPUState *env) return -TARGET_ENOSYS; } +#elif defined(TARGET_S390X) + +#define __NUM_GPRS 16 +#define __NUM_FPRS 16 +#define __NUM_ACRS 16 + +#define S390_SYSCALL_SIZE 2 +#define __SIGNAL_FRAMESIZE 160 /* FIXME: 31-bit mode -> 96 */ + +#define _SIGCONTEXT_NSIG 64 +#define _SIGCONTEXT_NSIG_BPW 64 /* FIXME: 31-bit mode -> 32 */ +#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW) +#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS) +#define PSW_ADDR_AMODE 0x0000000000000000UL /* 0x80000000UL for 31-bit */ +#define S390_SYSCALL_OPCODE ((uint16_t)0x0a00) + +typedef struct +{ + target_psw_t psw; + target_ulong gprs[__NUM_GPRS]; + unsigned int acrs[__NUM_ACRS]; +} target_s390_regs_common; + +typedef struct +{ + unsigned int fpc; + double fprs[__NUM_FPRS]; +} target_s390_fp_regs; + +typedef struct +{ + target_s390_regs_common regs; + target_s390_fp_regs fpregs; +} target_sigregs; + +struct target_sigcontext +{ + target_ulong oldmask[_SIGCONTEXT_NSIG_WORDS]; + target_sigregs *sregs; +}; + +typedef struct +{ + uint8_t callee_used_stack[__SIGNAL_FRAMESIZE]; + struct target_sigcontext sc; + target_sigregs sregs; + int signo; + uint8_t retcode[S390_SYSCALL_SIZE]; +} sigframe; + +struct target_ucontext { + target_ulong uc_flags; + struct target_ucontext *uc_link; + target_stack_t uc_stack; + target_sigregs uc_mcontext; + target_sigset_t uc_sigmask; /* mask last for extensibility */ +}; + +typedef struct +{ + uint8_t callee_used_stack[__SIGNAL_FRAMESIZE]; + uint8_t retcode[S390_SYSCALL_SIZE]; + struct target_siginfo info; + struct target_ucontext uc; +} rt_sigframe; + +static inline abi_ulong +get_sigframe(struct target_sigaction *ka, CPUState *env, size_t frame_size) +{ + abi_ulong sp; + + /* Default to using normal stack */ + sp = env->regs[15]; + + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa_flags & TARGET_SA_ONSTACK) { + if (! sas_ss_flags(sp)) + sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; + } + + /* This is the legacy signal stack switching. */ + else if (/* FIXME !user_mode(regs) */ 0 && + !(ka->sa_flags & TARGET_SA_RESTORER) && + ka->sa_restorer) { + sp = (abi_ulong) ka->sa_restorer; + } + + return (sp - frame_size) & -8ul; +} + +static void save_sigregs(CPUState *env, target_sigregs *sregs) +{ + int i; + //save_access_regs(current->thread.acrs); FIXME + + /* Copy a 'clean' PSW mask to the user to avoid leaking + information about whether PER is currently on. */ + __put_user(env->psw.mask, &sregs->regs.psw.mask); + __put_user(env->psw.addr, &sregs->regs.psw.addr); + for (i = 0; i < 16; i++) + __put_user(env->regs[i], &sregs->regs.gprs[i]); + for (i = 0; i < 16; i++) + __put_user(env->aregs[i], &sregs->regs.acrs[i]); + /* + * We have to store the fp registers to current->thread.fp_regs + * to merge them with the emulated registers. + */ + //save_fp_regs(¤t->thread.fp_regs); FIXME + for (i = 0; i < 16; i++) + __put_user(env->fregs[i].i, &sregs->fpregs.fprs[i]); +} + +static void setup_frame(int sig, struct target_sigaction *ka, + target_sigset_t *set, CPUState *env) +{ + sigframe *frame; + abi_ulong frame_addr; + + frame_addr = get_sigframe(ka, env, sizeof *frame); + qemu_log("%s: frame_addr 0x%lx\n", __FUNCTION__, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) + goto give_sigsegv; + + qemu_log("%s: 1\n", __FUNCTION__); + if (__put_user(set->sig[0], &frame->sc.oldmask[0])) + goto give_sigsegv; + + save_sigregs(env, &frame->sregs); + + __put_user((abi_ulong)&frame->sregs, (abi_ulong *)&frame->sc.sregs); + + /* Set up to return from userspace. If provided, use a stub + already in userspace. */ + if (ka->sa_flags & TARGET_SA_RESTORER) { + env->regs[14] = (unsigned long) + ka->sa_restorer | PSW_ADDR_AMODE; + } else { + env->regs[14] = (unsigned long) + frame->retcode | PSW_ADDR_AMODE; + if (__put_user(S390_SYSCALL_OPCODE | TARGET_NR_sigreturn, + (uint16_t *)(frame->retcode))) + goto give_sigsegv; + } + + /* Set up backchain. */ + if (__put_user(env->regs[15], (abi_ulong *) frame)) + goto give_sigsegv; + + /* Set up registers for signal handler */ + env->regs[15] = (target_ulong) frame; + env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE; + + env->regs[2] = sig; //map_signal(sig); + env->regs[3] = (target_ulong) &frame->sc; + + /* We forgot to include these in the sigcontext. + To avoid breaking binary compatibility, they are passed as args. */ + env->regs[4] = 0; // FIXME: no clue... current->thread.trap_no; + env->regs[5] = 0; // FIXME: no clue... current->thread.prot_addr; + + /* Place signal number on stack to allow backtrace from handler. */ + if (__put_user(env->regs[2], (int *) &frame->signo)) + goto give_sigsegv; + unlock_user_struct(frame, frame_addr, 1); + return; + +give_sigsegv: + qemu_log("%s: give_sigsegv\n", __FUNCTION__); + unlock_user_struct(frame, frame_addr, 1); + force_sig(TARGET_SIGSEGV); +} + +static void setup_rt_frame(int sig, struct target_sigaction *ka, + target_siginfo_t *info, + target_sigset_t *set, CPUState *env) +{ + int i; + rt_sigframe *frame; + abi_ulong frame_addr; + + frame_addr = get_sigframe(ka, env, sizeof *frame); + qemu_log("%s: frame_addr 0x%lx\n", __FUNCTION__, frame_addr); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) + goto give_sigsegv; + + qemu_log("%s: 1\n", __FUNCTION__); + if (copy_siginfo_to_user(&frame->info, info)) + goto give_sigsegv; + + /* Create the ucontext. */ + __put_user(0, &frame->uc.uc_flags); + __put_user((abi_ulong)NULL, (abi_ulong*)&frame->uc.uc_link); + __put_user(target_sigaltstack_used.ss_sp, &frame->uc.uc_stack.ss_sp); + __put_user(sas_ss_flags(get_sp_from_cpustate(env)), + &frame->uc.uc_stack.ss_flags); + __put_user(target_sigaltstack_used.ss_size, &frame->uc.uc_stack.ss_size); + save_sigregs(env, &frame->uc.uc_mcontext); + for(i = 0; i < TARGET_NSIG_WORDS; i++) { + __put_user((abi_ulong)set->sig[i], (abi_ulong*)&frame->uc.uc_sigmask.sig[i]); + } + + /* Set up to return from userspace. If provided, use a stub + already in userspace. */ + if (ka->sa_flags & TARGET_SA_RESTORER) { + env->regs[14] = (unsigned long) + ka->sa_restorer | PSW_ADDR_AMODE; + } else { + env->regs[14] = (unsigned long) + frame->retcode | PSW_ADDR_AMODE; + if (__put_user(S390_SYSCALL_OPCODE | TARGET_NR_rt_sigreturn, + (uint16_t *)(frame->retcode))) + goto give_sigsegv; + } + + /* Set up backchain. */ + if (__put_user(env->regs[15], (abi_ulong *) frame)) + goto give_sigsegv; + + /* Set up registers for signal handler */ + env->regs[15] = (target_ulong) frame; + env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE; + + env->regs[2] = sig; //map_signal(sig); + env->regs[3] = (target_ulong) &frame->info; + env->regs[4] = (target_ulong) &frame->uc; + return; + +give_sigsegv: + qemu_log("%s: give_sigsegv\n", __FUNCTION__); + unlock_user_struct(frame, frame_addr, 1); + force_sig(TARGET_SIGSEGV); +} + +static int +restore_sigregs(CPUState *env, target_sigregs *sc) +{ + int err = 0; + int i; + + for (i = 0; i < 16; i++) { + err |= __get_user(env->regs[i], &sc->regs.gprs[i]); + } + + err |= __get_user(env->psw.mask, &sc->regs.psw.mask); + qemu_log("%s: sc->regs.psw.addr 0x%lx env->psw.addr 0x%lx\n", __FUNCTION__, sc->regs.psw.addr, env->psw.addr); + err |= __get_user(env->psw.addr, &sc->regs.psw.addr); + /* FIXME: 31-bit -> | PSW_ADDR_AMODE */ + + for (i = 0; i < 16; i++) { + err |= __get_user(env->aregs[i], &sc->regs.acrs[i]); + } + for (i = 0; i < 16; i++) { + err |= __get_user(env->fregs[i].i, &sc->fpregs.fprs[i]); + } + + return err; +} + +long do_sigreturn(CPUState *env) +{ + sigframe *frame; + abi_ulong frame_addr = env->regs[15]; + qemu_log("%s: frame_addr 0x%lx\n", __FUNCTION__, frame_addr); + target_sigset_t target_set; + sigset_t set; + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) + goto badframe; + if (__get_user(target_set.sig[0], &frame->sc.oldmask[0])) + goto badframe; + + target_to_host_sigset_internal(&set, &target_set); + sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */ + + if (restore_sigregs(env, &frame->sregs)) + goto badframe; + + unlock_user_struct(frame, frame_addr, 0); + return env->regs[2]; + +badframe: + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); + return 0; +} + +long do_rt_sigreturn(CPUState *env) +{ + rt_sigframe *frame; + abi_ulong frame_addr = env->regs[15]; + qemu_log("%s: frame_addr 0x%lx\n", __FUNCTION__, frame_addr); + sigset_t set; + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) + goto badframe; + target_to_host_sigset(&set, &frame->uc.uc_sigmask); + + sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */ + + if (restore_sigregs(env, &frame->uc.uc_mcontext)) + goto badframe; + + if (do_sigaltstack(frame_addr + offsetof(rt_sigframe, uc.uc_stack), 0, + get_sp_from_cpustate(env)) == -EFAULT) + goto badframe; + unlock_user_struct(frame, frame_addr, 0); + return env->regs[2]; + +badframe: + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); + return 0; +} + #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) /* FIXME: Many of the structures are defined for both PPC and PPC64, but diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 4c1961f..88ebdd7 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -5078,7 +5078,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = get_errno(settimeofday(&tv, NULL)); } break; -#ifdef TARGET_NR_select +#if defined(TARGET_NR_select) && !defined(TARGET_S390X) && !defined(TARGET_S390) case TARGET_NR_select: { struct target_sel_arg_struct *sel; @@ -5185,7 +5185,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_mmap case TARGET_NR_mmap: -#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) +#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || \ + defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \ + || defined(TARGET_S390X) { abi_ulong *v; abi_ulong v1, v2, v3, v4, v5, v6; @@ -5669,6 +5671,8 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); #elif defined(TARGET_CRIS) ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5)); +#elif defined(TARGET_S390X) + ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4)); #else ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); #endif @@ -5875,8 +5879,12 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, } break; #endif /* TARGET_NR_getdents64 */ -#ifdef TARGET_NR__newselect +#if defined(TARGET_NR__newselect) || defined(TARGET_S390X) +#ifdef TARGET_S390X + case TARGET_NR_select: +#else case TARGET_NR__newselect: +#endif ret = do_select(arg1, arg2, arg3, arg4, arg5); break; #endif @@ -6100,7 +6108,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, goto unimplemented; case TARGET_NR_sigaltstack: #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ - defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) + defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || defined(TARGET_S390X) ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); break; #else diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index ac5dbc5..3056997 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -55,7 +55,7 @@ #endif #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SH4) \ - || defined(TARGET_M68K) || defined(TARGET_CRIS) + || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_S390X) #define TARGET_IOC_SIZEBITS 14 #define TARGET_IOC_DIRBITS 2 @@ -315,7 +315,10 @@ struct target_sigaction; int do_sigaction(int sig, const struct target_sigaction *act, struct target_sigaction *oact); -#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) +#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || \ + defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || \ + defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS) || \ + defined(TARGET_MICROBLAZE) || defined(TARGET_S390X) #if defined(TARGET_SPARC) #define TARGET_SA_NOCLDSTOP 8u @@ -1617,6 +1620,27 @@ struct target_stat { abi_long __unused[3]; }; +#elif defined(TARGET_S390X) +struct target_stat { + abi_ulong st_dev; + abi_ulong st_ino; + abi_ulong st_nlink; + unsigned int st_mode; + unsigned int st_uid; + unsigned int st_gid; + unsigned int __pad1; + abi_ulong st_rdev; + abi_ulong st_size; + abi_ulong target_st_atime; + abi_ulong target_st_atime_nsec; + abi_ulong target_st_mtime; + abi_ulong target_st_mtime_nsec; + abi_ulong target_st_ctime; + abi_ulong target_st_ctime_nsec; + abi_ulong st_blksize; + abi_long st_blocks; + abi_ulong __unused[3]; +}; #else #error unsupported CPU #endif @@ -1703,6 +1727,34 @@ struct target_statfs64 { abi_long f_frsize; abi_long f_spare[5]; }; +#elif defined(TARGET_S390X) +struct target_statfs { + int32_t f_type; + int32_t f_bsize; + abi_long f_blocks; + abi_long f_bfree; + abi_long f_bavail; + abi_long f_files; + abi_long f_ffree; + kernel_fsid_t f_fsid; + int32_t f_namelen; + int32_t f_frsize; + int32_t f_spare[5]; +}; + +struct target_statfs64 { + int32_t f_type; + int32_t f_bsize; + abi_long f_blocks; + abi_long f_bfree; + abi_long f_bavail; + abi_long f_files; + abi_long f_ffree; + kernel_fsid_t f_fsid; + int32_t f_namelen; + int32_t f_frsize; + int32_t f_spare[5]; +}; #else struct target_statfs { uint32_t f_type; diff --git a/qemu-binfmt-conf.sh b/qemu-binfmt-conf.sh index 941f0cf..5678771 100644 --- a/qemu-binfmt-conf.sh +++ b/qemu-binfmt-conf.sh @@ -1,5 +1,5 @@ #!/bin/sh -# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC program execution by the kernel +# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC/s390 program execution by the kernel # load the binfmt_misc module if [ ! -d /proc/sys/fs/binfmt_misc ]; then @@ -57,3 +57,6 @@ if [ $cpu != "mips" ] ; then echo ':mips64:M::\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mips64:' > /proc/sys/fs/binfmt_misc/register echo ':mips64el:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mips64el:' > /proc/sys/fs/binfmt_misc/register fi +if [ $cpu != "s390x" ] ; then + echo ':s390x:M::\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-s390x:' > /proc/sys/fs/binfmt_misc/register +fi -- 1.6.2.1 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 3/4] S/390 host support for TCG 2009-07-24 17:08 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 4/4] linux-user: S/390 64-bit (s390x) support Ulrich Hecht @ 2009-07-24 17:59 ` malc 2009-11-02 17:17 ` Aurelien Jarno 2 siblings, 0 replies; 14+ messages in thread From: malc @ 2009-07-24 17:59 UTC (permalink / raw) To: Ulrich Hecht; +Cc: qemu-devel On Fri, 24 Jul 2009, Ulrich Hecht wrote: > S/390 TCG code generator as posted before > > improvements since last time: > - don't use R0 (often means "zero", not "register zero") > - optimized add_i32 immediate > - formatted for better compliance with the QEMU coding style Have you resolved the issues you had in the previous version of the patch? If so i'd be interested to know how. [..snip..] -- mailto:av1474@comtv.ru ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 3/4] S/390 host support for TCG 2009-07-24 17:08 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 4/4] linux-user: S/390 64-bit (s390x) support Ulrich Hecht 2009-07-24 17:59 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG malc @ 2009-11-02 17:17 ` Aurelien Jarno 2009-11-09 16:54 ` Ulrich Hecht 2 siblings, 1 reply; 14+ messages in thread From: Aurelien Jarno @ 2009-11-02 17:17 UTC (permalink / raw) To: Ulrich Hecht; +Cc: aliguori, riku.voipio, qemu-devel Hi, On Fri, Jul 24, 2009 at 07:08:11PM +0200, Ulrich Hecht wrote: > S/390 TCG code generator as posted before > > improvements since last time: > - don't use R0 (often means "zero", not "register zero") > - optimized add_i32 immediate > - formatted for better compliance with the QEMU coding style > > Signed-off-by: Ulrich Hecht <uli@suse.de> > --- > dyngen-exec.h | 2 +- > linux-user/syscall.c | 2 +- > s390x.ld | 194 +++++++++ > tcg/s390/tcg-target.c | 1145 +++++++++++++++++++++++++++++++++++++++++++++++++ > tcg/s390/tcg-target.h | 76 ++++ > 5 files changed, 1417 insertions(+), 2 deletions(-) > create mode 100644 s390x.ld > create mode 100644 tcg/s390/tcg-target.c > create mode 100644 tcg/s390/tcg-target.h I have finally found a bit of time to review this patch. Please note that my S390 knowledge is very low, so some of my comments may looks strange. First of all I have a question about s390/s390x. It seems that you plan to support both s390 and s390x in the same file. Is that correct? Do you know how far the 32-bit support is far from compiling/working? Would it be really possible to support both in the same file? Then some general remarks. It would be nice to use tcg_out_ function helpers instead of some magic values with tcg_out32. Also please respect the CODING_STYLE document, especially for if/else blocks. Please fine some more comments inline. > diff --git a/dyngen-exec.h b/dyngen-exec.h > index c007763..606ee11 100644 > --- a/dyngen-exec.h > +++ b/dyngen-exec.h > @@ -119,7 +119,7 @@ extern int printf(const char *, ...); > > /* The return address may point to the start of the next instruction. > Subtracting one gets us the call instruction itself. */ > -#if defined(__s390__) > +#if defined(__s390__) && !defined(__s390x__) > # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1)) > #elif defined(__arm__) > /* Thumb return addresses have the low bit set, so we need to subtract two. > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index 7b57323..4c1961f 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -181,7 +181,7 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ > #define __NR_sys_inotify_add_watch __NR_inotify_add_watch > #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch > > -#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) > +#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || defined(__s390x__) > #define __NR__llseek __NR_lseek > #endif > > diff --git a/s390x.ld b/s390x.ld > new file mode 100644 > index 0000000..7d1f2b7 > --- /dev/null > +++ b/s390x.ld > @@ -0,0 +1,194 @@ > +/* Default linker script, for normal executables */ > +OUTPUT_FORMAT("elf64-s390", "elf64-s390", > + "elf64-s390") > +OUTPUT_ARCH(s390:64-bit) > +ENTRY(_start) > +SEARCH_DIR("/usr/s390x-suse-linux/lib64"); SEARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/s390x-suse-linux/lib"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); Why adding some search directories manually here? The one you are adding are SuSE specific. They should already be detected by the configure script and added to config-host.ld. > +SECTIONS > +{ > + /* Read-only sections, merged into text segment: */ > + PROVIDE (__executable_start = 0x60000000); . = 0x60000000 + SIZEOF_HEADERS; > + .interp : { *(.interp) } > + .note.gnu.build-id : { *(.note.gnu.build-id) } > + .hash : { *(.hash) } > + .gnu.hash : { *(.gnu.hash) } > + .dynsym : { *(.dynsym) } > + .dynstr : { *(.dynstr) } > + .gnu.version : { *(.gnu.version) } > + .gnu.version_d : { *(.gnu.version_d) } > + .gnu.version_r : { *(.gnu.version_r) } > + .rel.init : { *(.rel.init) } > + .rela.init : { *(.rela.init) } > + .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } > + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } > + .rel.fini : { *(.rel.fini) } > + .rela.fini : { *(.rela.fini) } > + .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } > + .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } > + .rel.data.rel.ro : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) } > + .rela.data.rel.ro : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) } > + .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } > + .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } > + .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } > + .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } > + .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } > + .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } > + .rel.ctors : { *(.rel.ctors) } > + .rela.ctors : { *(.rela.ctors) } > + .rel.dtors : { *(.rel.dtors) } > + .rela.dtors : { *(.rela.dtors) } > + .rel.got : { *(.rel.got) } > + .rela.got : { *(.rela.got) } > + .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } > + .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } > + .rel.plt : { *(.rel.plt) } > + .rela.plt : { *(.rela.plt) } > + .init : > + { > + KEEP (*(.init)) > + } =0x07070707 > + .plt : { *(.plt) } > + .text : > + { > + *(.text .stub .text.* .gnu.linkonce.t.*) > + /* .gnu.warning sections are handled specially by elf32.em. */ > + *(.gnu.warning) > + } =0x07070707 > + .fini : > + { > + KEEP (*(.fini)) > + } =0x07070707 > + PROVIDE (__etext = .); > + PROVIDE (_etext = .); > + PROVIDE (etext = .); > + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } > + .rodata1 : { *(.rodata1) } > + .eh_frame_hdr : { *(.eh_frame_hdr) } > + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } > + .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } > + /* Adjust the address for the data segment. We want to adjust up to > + the same address within the page on the next page up. */ > + . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); > + /* Exception handling */ > + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } > + .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } > + /* Thread Local Storage sections */ > + .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } > + .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } > + .preinit_array : > + { > + PROVIDE_HIDDEN (__preinit_array_start = .); > + KEEP (*(.preinit_array)) > + PROVIDE_HIDDEN (__preinit_array_end = .); > + } > + .init_array : > + { > + PROVIDE_HIDDEN (__init_array_start = .); > + KEEP (*(SORT(.init_array.*))) > + KEEP (*(.init_array)) > + PROVIDE_HIDDEN (__init_array_end = .); > + } > + .fini_array : > + { > + PROVIDE_HIDDEN (__fini_array_start = .); > + KEEP (*(.fini_array)) > + KEEP (*(SORT(.fini_array.*))) > + PROVIDE_HIDDEN (__fini_array_end = .); > + } > + .ctors : > + { > + /* gcc uses crtbegin.o to find the start of > + the constructors, so we make sure it is > + first. Because this is a wildcard, it > + doesn't matter if the user does not > + actually link against crtbegin.o; the > + linker won't look for a file to match a > + wildcard. The wildcard also means that it > + doesn't matter which directory crtbegin.o > + is in. */ > + KEEP (*crtbegin.o(.ctors)) > + KEEP (*crtbegin?.o(.ctors)) > + /* We don't want to include the .ctor section from > + the crtend.o file until after the sorted ctors. > + The .ctor section from the crtend file contains the > + end of ctors marker and it must be last */ > + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) > + KEEP (*(SORT(.ctors.*))) > + KEEP (*(.ctors)) > + } > + .dtors : > + { > + KEEP (*crtbegin.o(.dtors)) > + KEEP (*crtbegin?.o(.dtors)) > + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) > + KEEP (*(SORT(.dtors.*))) > + KEEP (*(.dtors)) > + } > + .jcr : { KEEP (*(.jcr)) } > + .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) } > + .dynamic : { *(.dynamic) } > + . = DATA_SEGMENT_RELRO_END (0, .); > + .got : { *(.got.plt) *(.got) } > + .data : > + { > + *(.data .data.* .gnu.linkonce.d.*) > + SORT(CONSTRUCTORS) > + } > + .data1 : { *(.data1) } > + _edata = .; PROVIDE (edata = .); > + __bss_start = .; > + .bss : > + { > + *(.dynbss) > + *(.bss .bss.* .gnu.linkonce.b.*) > + *(COMMON) > + /* Align here to ensure that the .bss section occupies space up to > + _end. Align after .bss to ensure correct alignment even if the > + .bss section disappears because there are no input sections. > + FIXME: Why do we need it? When there is no .bss section, we don't > + pad the .data section. */ > + . = ALIGN(. != 0 ? 64 / 8 : 1); > + } > + . = ALIGN(64 / 8); > + . = ALIGN(64 / 8); > + _end = .; PROVIDE (end = .); > + . = DATA_SEGMENT_END (.); > + /* Stabs debugging sections. */ > + .stab 0 : { *(.stab) } > + .stabstr 0 : { *(.stabstr) } > + .stab.excl 0 : { *(.stab.excl) } > + .stab.exclstr 0 : { *(.stab.exclstr) } > + .stab.index 0 : { *(.stab.index) } > + .stab.indexstr 0 : { *(.stab.indexstr) } > + .comment 0 : { *(.comment) } > + /* DWARF debug sections. > + Symbols in the DWARF debugging sections are relative to the beginning > + of the section so we begin them at 0. */ > + /* DWARF 1 */ > + .debug 0 : { *(.debug) } > + .line 0 : { *(.line) } > + /* GNU DWARF 1 extensions */ > + .debug_srcinfo 0 : { *(.debug_srcinfo) } > + .debug_sfnames 0 : { *(.debug_sfnames) } > + /* DWARF 1.1 and DWARF 2 */ > + .debug_aranges 0 : { *(.debug_aranges) } > + .debug_pubnames 0 : { *(.debug_pubnames) } > + /* DWARF 2 */ > + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } > + .debug_abbrev 0 : { *(.debug_abbrev) } > + .debug_line 0 : { *(.debug_line) } > + .debug_frame 0 : { *(.debug_frame) } > + .debug_str 0 : { *(.debug_str) } > + .debug_loc 0 : { *(.debug_loc) } > + .debug_macinfo 0 : { *(.debug_macinfo) } > + /* SGI/MIPS DWARF 2 extensions */ > + .debug_weaknames 0 : { *(.debug_weaknames) } > + .debug_funcnames 0 : { *(.debug_funcnames) } > + .debug_typenames 0 : { *(.debug_typenames) } > + .debug_varnames 0 : { *(.debug_varnames) } > + /* DWARF 3 */ > + .debug_pubtypes 0 : { *(.debug_pubtypes) } > + .debug_ranges 0 : { *(.debug_ranges) } > + .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } > + /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) } > +} > diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c > new file mode 100644 > index 0000000..0b285cd > --- /dev/null > +++ b/tcg/s390/tcg-target.c > @@ -0,0 +1,1145 @@ > +/* > + * Tiny Code Generator for QEMU > + * > + * Copyright (c) 2009 Ulrich Hecht <uli@suse.de> > + * > + * Permission is hereby granted, free of charge, to any person obtaining a copy > + * of this software and associated documentation files (the "Software"), to deal > + * in the Software without restriction, including without limitation the rights > + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell > + * copies of the Software, and to permit persons to whom the Software is > + * furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice shall be included in > + * all copies or substantial portions of the Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, > + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN > + * THE SOFTWARE. > + */ > + > +#ifndef NDEBUG > +static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { > + "%r0", > + "%r1", > + "%r2", > + "%r3", > + "%r4", > + "%r5", > + "%r6", > + "%r7", > + "%r8", > + "%r9", > + "%r10", > + "%r11", > + "%r12", > + "%r13", > + "%r14", > + "%r15" > +}; > +#endif > + > +static const int tcg_target_reg_alloc_order[] = { > + TCG_REG_R6, > + TCG_REG_R7, > + TCG_REG_R8, > + TCG_REG_R9, > + TCG_REG_R10, > + TCG_REG_R11, > + TCG_REG_R12, > + TCG_REG_R13, > + TCG_REG_R14, > + /* TCG_REG_R0, many insns can't be used with R0, so we better avoid it for now */ > + TCG_REG_R1, > + TCG_REG_R2, > + TCG_REG_R3, > + TCG_REG_R4, > + TCG_REG_R5, > +}; > + > +static const int tcg_target_call_iarg_regs[4] = { > + TCG_REG_R2, TCG_REG_R3, TCG_REG_R4, TCG_REG_R5 > +}; > +static const int tcg_target_call_oarg_regs[2] = { > + TCG_REG_R2, TCG_REG_R3 > +}; That's purely cosmetics, but it will be easier to put only one value by line. > +static void patch_reloc(uint8_t *code_ptr, int type, > + tcg_target_long value, tcg_target_long addend) > +{ > + switch (type) { > + case R_390_PC32DBL: > + *(uint32_t*)code_ptr = (value - ((tcg_target_long)code_ptr + addend)) >> 1; > + break; > + default: > + tcg_abort(); > + break; > + } > +} > + > +/* maximum number of register used for input function arguments */ > +static inline int tcg_target_get_call_iarg_regs_count(int flags) > +{ > + return 4; > +} > + > +#define TCG_CT_CONST_S16 0x100 > +#define TCG_CT_CONST_U12 0x200 > + > +/* parse target specific constraints */ > +static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) > +{ > + const char *ct_str; > + > + ct->ct |= TCG_CT_REG; > + tcg_regset_set32(ct->u.regs, 0, 0xffff); > + ct_str = *pct_str; > + switch (ct_str[0]) { > + case 'L': /* qemu_ld constraint */ > + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R2); > +#ifdef CONFIG_SOFTMMU > + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); > +#endif > + break; > + case 'S': /* qemu_st constraint */ > + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R2); > +#ifdef CONFIG_SOFTMMU > + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); > + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); > +#endif > + break; > + case 'R': /* not R0 */ > + tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0); > + break; > + case 'I': > + ct->ct &= ~TCG_CT_REG; > + ct->ct |= TCG_CT_CONST_S16; > + break; It would be probably more easy to read if TCG_CT_REG was not set by default, and then get cleared here. > + default: > + break; > + } > + ct_str++; > + *pct_str = ct_str; > + > + return 0; > +} > + > +/* Test if a constant matches the constraint. */ > +static inline int tcg_target_const_match(tcg_target_long val, > + const TCGArgConstraint *arg_ct) > +{ > + int ct; > + ct = arg_ct->ct; > + if (ct & TCG_CT_CONST) > + return 1; > + if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) > + return 1; > + if ((ct & TCG_CT_CONST_U12) && val == (val & 0xfff)) > + return 1; Please put the indented blocks between brackets, as described in CODING_STYLE. > + return 0; > +} > + > +#ifdef CONFIG_SOFTMMU > + > +#include "../../softmmu_defs.h" > + > +static void *qemu_ld_helpers[4] = { > + __ldb_mmu, > + __ldw_mmu, > + __ldl_mmu, > + __ldq_mmu, > +}; > + > +static void *qemu_st_helpers[4] = { > + __stb_mmu, > + __stw_mmu, > + __stl_mmu, > + __stq_mmu, > +}; > +#endif > + > +static uint8_t *tb_ret_addr; > + > +/* signed/unsigned is handled by using COMPARE and COMPARE LOGICAL, > + respectively */ > +static const uint8_t tcg_cond_to_s390_cond[10] = { > + [TCG_COND_EQ] = 8, > + [TCG_COND_LT] = 4, > + [TCG_COND_LTU] = 4, > + [TCG_COND_LE] = 8 | 4, > + [TCG_COND_LEU] = 8 | 4, > + [TCG_COND_GT] = 2, > + [TCG_COND_GTU] = 2, > + [TCG_COND_GE] = 8 | 2, > + [TCG_COND_GEU] = 8 | 2, > + [TCG_COND_NE] = 4 | 2 | 1, > +}; > + > +/* emit load/store (and then some) instructions (E3 prefix) */ > +static inline void tcg_out_e3(TCGContext* s, int op, int r1, int r2, int disp) > +{ > + tcg_out16(s, 0xe300 | (r1 << 4)); > + tcg_out32(s, op | (r2 << 28) | ((disp & 0xfff) << 16) | ((disp >> 12) << 8)); > +} > +#define E3_LG 0x04 > +#define E3_LRVG 0x0f > +#define E3_LGF 0x14 > +#define E3_LGH 0x15 > +#define E3_LLGF 0x16 > +#define E3_LRV 0x1e > +#define E3_LRVH 0x1f > +#define E3_CG 0x20 > +#define E3_STG 0x24 > +#define E3_STRVG 0x2f > +#define E3_STRV 0x3e > +#define E3_STRVH 0x3f > +#define E3_STHY 0x70 > +#define E3_STCY 0x72 > +#define E3_LGB 0x77 > +#define E3_LLGC 0x90 > +#define E3_LLGH 0x91 > + > +/* emit 64-bit register/register insns (B9 prefix) */ > +static inline void tcg_out_b9(TCGContext* s, int op, int r1, int r2) > +{ > + tcg_out32(s, 0xb9000000 | (op << 16) | (r1 << 4) | r2); > +} > +#define B9_LGR 0x04 > +#define B9_AGR 0x08 > +#define B9_SGR 0x09 > +#define B9_MSGR 0x0c > +#define B9_LGFR 0x14 > +#define B9_LLGFR 0x16 > +#define B9_CGR 0x20 > +#define B9_CLGR 0x21 > +#define B9_NGR 0x80 > +#define B9_OGR 0x81 > +#define B9_XGR 0x82 > +#define B9_DLGR 0x87 > +#define B9_DLR 0x97 > + > +/* emit (mostly) 32-bit register/register insns */ > +static inline void tcg_out_rr(TCGContext* s, int op, int r1, int r2) > +{ > + tcg_out16(s, (op << 8) | (r1 << 4) | r2); > +} > +#define RR_BASR 0x0d > +#define RR_NR 0x14 > +#define RR_CLR 0x15 > +#define RR_OR 0x16 > +#define RR_XR 0x17 > +#define RR_LR 0x18 > +#define RR_CR 0x19 > +#define RR_AR 0x1a > +#define RR_SR 0x1b > + > +static inline void tcg_out_a7(TCGContext *s, int op, int r1, int16_t i2) > +{ > + tcg_out32(s, 0xa7000000UL | (r1 << 20) | (op << 16) | ((uint16_t)i2)); > +} > +#define A7_AHI 0xa > +#define A7_AHGI 0xb > + > +/* emit 64-bit shifts (EB prefix) */ > +static inline void tcg_out_sh64(TCGContext* s, int op, int r0, int r1, int r2, int imm) > +{ > + tcg_out16(s, 0xeb00 | (r0 << 4) | r1); > + tcg_out32(s, op | (r2 << 28) | ((imm & 0xfff) << 16) | ((imm >> 12) << 8)); > +} > +#define SH64_REG_NONE 0 /* use immediate only (not R0!) */ > +#define SH64_SRAG 0x0a > +#define SH64_SRLG 0x0c > +#define SH64_SLLG 0x0d > + > +/* emit 32-bit shifts */ > +static inline void tcg_out_sh32(TCGContext* s, int op, int r0, int r1, int imm) > +{ > + tcg_out32(s, 0x80000000 | (op << 24) | (r0 << 20) | (r1 << 12) | imm); > +} > +#define SH32_REG_NONE 0 /* use immediate only (not R0!) */ > +#define SH32_SRL 0x8 > +#define SH32_SLL 0x9 > +#define SH32_SRA 0xa > + > +/* branch to relative address (long) */ > +static inline void tcg_out_brasl(TCGContext* s, int r, tcg_target_long raddr) > +{ > + tcg_out16(s, 0xc005 | (r << 4)); > + tcg_out32(s, raddr >> 1); > +} > + > +/* store 8/16/32 bits */ > +static inline void tcg_out_store(TCGContext* s, int op, int r0, int r1, int off) > +{ > + tcg_out32(s, (op << 24) | (r0 << 20) | (r1 << 12) | off); > +} > +#define ST_STH 0x40 > +#define ST_STC 0x42 > +#define ST_ST 0x50 > + > +/* load a register with an immediate value */ > +static inline void tcg_out_movi(TCGContext *s, TCGType type, > + int ret, tcg_target_long arg) > +{ > + //fprintf(stderr,"tcg_out_movi ret 0x%x arg 0x%lx\n",ret,arg); > + if (arg >= -0x8000 && arg < 0x8000) { /* signed immediate load */ What about testing (arg == (int16_t)arg) instead? > + /* lghi %rret, arg */ > + tcg_out32(s, 0xa7090000 | (ret << 20) | (arg & 0xffff)); > + } > + else if (!(arg & 0xffffffffffff0000UL)) { Please put the else on the same line as the closing brace. Also the test is not really easy to figure at a first glance. What about using (arg == (uint16_t)arg) instead? > + /* llill %rret, arg */ > + tcg_out32(s, 0xa50f0000 | (ret << 20) | arg); > + } > + else if (!(arg & 0xffffffff00000000UL) || type == TCG_TYPE_I32) { Same here, what about (arg == (uint32_t)arg) instead? > + /* llill %rret, arg */ > + tcg_out32(s, 0xa50f0000 | (ret << 20) | (arg & 0xffff)); > + /* iilh %rret, arg */ > + tcg_out32(s, 0xa5020000 | (ret << 20) | ((arg & 0xffffffff) >> 16)); > + } > + else { > + /* branch over constant and store its address in R13 */ > + tcg_out_brasl(s, TCG_REG_R13, 14); > + /* 64-bit constant */ > + tcg_out32(s,arg >> 32); > + tcg_out32(s,arg); > + /* load constant to ret */ > + tcg_out_e3(s, E3_LG, ret, TCG_REG_R13, 0); > + } > +} > + > +/* load data without address translation or endianness conversion */ > +static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg, > + int arg1, tcg_target_long arg2) > +{ > + int op; > + //fprintf(stderr,"tcg_out_ld type %d arg %d arg1 %d arg2 %ld\n",type,arg,arg1,arg2); > + > + if (type == TCG_TYPE_I32) op = E3_LLGF; /* 32-bit zero-extended */ > + else op = E3_LG; /* 64-bit */ Please put braces for both "op =" statements. > + if (arg2 < -0x80000 || arg2 > 0x7ffff) { > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, arg2); /* load the displacement */ > + tcg_out_b9(s, B9_AGR, TCG_REG_R13, arg1); /* add the address */ > + tcg_out_e3(s, op, arg, TCG_REG_R13, 0); /* load the data */ > + } > + else { > + tcg_out_e3(s, op, arg, arg1, arg2); /* load the data */ > + } > +} > + > +/* load data with address translation (if applicable) and endianness conversion */ > +static void tcg_out_qemu_ld(TCGContext* s, const TCGArg* args, int opc) > +{ > + int addr_reg, data_reg, mem_index, s_bits; > +#if defined(CONFIG_SOFTMMU) > + uint16_t *label1_ptr, *label2_ptr; > +#endif > + > + data_reg = *args++; > + addr_reg = *args++; > + mem_index = *args; > + > + s_bits = opc & 3; > + > + int arg0 = TCG_REG_R2; > +#ifdef CONFIG_SOFTMMU > + int arg1 = TCG_REG_R3; > +#endif > + > + /* fprintf(stderr,"tcg_out_qemu_ld opc %d data_reg %d addr_reg %d mem_index %d s_bits %d\n", > + opc, data_reg, addr_reg, mem_index, s_bits); */ > + > +#ifdef CONFIG_SOFTMMU > + tcg_out_b9(s, B9_LGR, arg1, addr_reg); > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > + > + tcg_out_sh64(s, SH64_SRLG, arg1, addr_reg, SH64_REG_NONE, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); > + tcg_out_b9(s, B9_NGR, arg0, TCG_REG_R13); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); > + tcg_out_b9(s, B9_NGR, arg1, TCG_REG_R13); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, offsetof(CPUState, tlb_table[mem_index][0].addr_read)); > + tcg_out_b9(s, B9_AGR, arg1, TCG_REG_R13); > + > + tcg_out_b9(s, B9_AGR, arg1, TCG_AREG0); > + > + tcg_out_e3(s, E3_CG, arg0, arg1, 0); > + > + label1_ptr = (uint16_t*)s->code_ptr; > + tcg_out32(s, 0xa7840000); /* je label1 (offset will be patched in later) */ Would be nice to have the corresponding tcg_out_ function and the corresponding value instead of the magic value. Also I am not sure the comment is correct here, "je" being an x86_64 instruction. > + /* call load helper */ > +#if TARGET_LONG_BITS == 32 > + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); > +#else > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > +#endif > + tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index); > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_ulong)qemu_ld_helpers[s_bits]); > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); > + > + /* sign extension */ > + switch (opc) { > + case 0 | 4: > + tcg_out_sh64(s, SH64_SLLG, data_reg, arg0, SH64_REG_NONE, 56); > + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 56); > + break; > + case 1 | 4: > + tcg_out_sh64(s, SH64_SLLG, data_reg, arg0, SH64_REG_NONE, 48); Please use space for indentation. > + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 48); > + break; > + case 2 | 4: > + tcg_out_b9(s, B9_LGFR, data_reg, arg0); > + break; > + case 0: case 1: case 2: case 3: default: > + /* unsigned -> just copy */ > + tcg_out_b9(s, B9_LGR, data_reg, arg0); Is it always correct? On x86_64, starting with gcc 4.3, it is not guaranteed anymore that non used bits are set to 0. > + break; > + } > + > + /* jump to label2 (end) */ > + label2_ptr = (uint16_t*)s->code_ptr; > + tcg_out32(s, 0xa7d50000); /* bras %r13, label2 */ > + > + /* this is label1, patch branch */ > + *(label1_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label1_ptr) >> 1; > + > + tcg_out_e3(s, E3_LG, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read)); > + > +#if TARGET_LONG_BITS == 32 > + /* zero upper 32 bits */ > + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); > +#else > + /* just copy */ > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > +#endif > + tcg_out_b9(s, B9_AGR, arg0, arg1); > + > +#else /* CONFIG_SOFTMMU */ > + /* user mode, no address translation required */ > + arg0 = addr_reg; > +#endif > + > + switch (opc) { > + case 0: /* unsigned byte */ > + tcg_out_e3(s, E3_LLGC, data_reg, arg0, 0); > + break; > + case 0 | 4: /* signed byte */ > + tcg_out_e3(s, E3_LGB, data_reg, arg0, 0); > + break; > + case 1: /* unsigned short */ > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_LLGH, data_reg, arg0, 0); > +#else > + /* swapped unsigned halfword load with upper bits zeroed */ > + tcg_out_e3(s, E3_LRVH, data_reg, arg0, 0); > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, 0xffffL); > + tcg_out_b9(s, B9_NGR, data_reg, 13); Does the 13 value here means TCG_REG_R13? > +#endif > + break; > + case 1 | 4: /* signed short */ > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_LGH, data_reg, arg0, 0); > +#else > + /* swapped sign-extended halfword load */ > + tcg_out_e3(s, E3_LRVH, data_reg, arg0, 0); > + tcg_out_sh64(s, SH64_SLLG, data_reg, data_reg, SH64_REG_NONE, 48); > + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, SH64_REG_NONE, 48); > +#endif > + break; > + case 2: /* unsigned int */ > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_LLGF, data_reg, arg0, 0); > +#else > + /* swapped unsigned int load with upper bits zeroed */ > + tcg_out_e3(s, E3_LRV, data_reg, arg0, 0); > + tcg_out_b9(s, B9_LLGFR, data_reg, data_reg); > +#endif > + break; > + case 2 | 4: /* signed int */ > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_LGF, data_reg, arg0, 0); > +#else > + /* swapped sign-extended int load */ > + tcg_out_e3(s, E3_LRV, data_reg, arg0, 0); > + tcg_out_b9(s, B9_LGFR, data_reg, data_reg); > +#endif > + break; > + case 3: /* long (64 bit) */ > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_LG, data_reg, arg0, 0); > +#else > + tcg_out_e3(s, E3_LRVG, data_reg, arg0, 0); > +#endif > + break; > + default: > + tcg_abort(); > + } > + > +#ifdef CONFIG_SOFTMMU > + /* this is label2, patch branch */ > + *(label2_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label2_ptr) >> 1; > +#endif > +} > + > +static void tcg_out_qemu_st(TCGContext* s, const TCGArg* args, int opc) > +{ > + int addr_reg, data_reg, mem_index, s_bits; > +#if defined(CONFIG_SOFTMMU) > + uint16_t *label1_ptr, *label2_ptr; > +#endif > + > + data_reg = *args++; > + addr_reg = *args++; > + mem_index = *args; > + > + s_bits = opc; > + > + int arg0 = TCG_REG_R2; > +#ifdef CONFIG_SOFTMMU > + int arg1 = TCG_REG_R3; > + int arg2 = TCG_REG_R4; > +#endif > + > + /* fprintf(stderr,"tcg_out_qemu_st opc %d data_reg %d addr_reg %d mem_index %d s_bits %d\n", > + opc, data_reg, addr_reg, mem_index, s_bits); */ > + > +#ifdef CONFIG_SOFTMMU > +#if TARGET_LONG_BITS == 32 > + tcg_out_b9(s, B9_LLGFR, arg1, addr_reg); > + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); > +#else > + tcg_out_b9(s, B9_LGR, arg1, addr_reg); > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > +#endif > + > + tcg_out_sh64(s, SH64_SRLG, arg1, addr_reg, SH64_REG_NONE, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); > + tcg_out_b9(s, B9_NGR, arg0, TCG_REG_R13); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); > + tcg_out_b9(s, B9_NGR, arg1, TCG_REG_R13); > + > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, offsetof(CPUState, tlb_table[mem_index][0].addr_write)); > + tcg_out_b9(s, B9_AGR, arg1, TCG_REG_R13); > + > + tcg_out_b9(s, B9_AGR, arg1, TCG_AREG0); > + > + tcg_out_e3(s, E3_CG, arg0, arg1, 0); > + > +#if TARGET_LONG_BITS == 32 > + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); > +#else > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > +#endif > + > + /* jump to label1 */ > + label1_ptr = (uint16_t*)s->code_ptr; > + tcg_out32(s, 0xa7840000); /* je label1 */ > + > + /* call store helper */ > + tcg_out_b9(s, B9_LGR, arg1, data_reg); > + tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_ulong)qemu_st_helpers[s_bits]); > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); > + > + /* jump to label2 (end) */ > + label2_ptr = (uint16_t*)s->code_ptr; > + tcg_out32(s, 0xa7d50000); /* bras %r13, label2 */ > + > + /* this is label1, patch branch */ > + *(label1_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label1_ptr) >> 1; > + > + tcg_out_e3(s, E3_LG, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write)); > + > +#if TARGET_LONG_BITS == 32 > + /* zero upper 32 bits */ > + tcg_out_b9(s, B9_LLGFR, arg0, addr_reg); > +#else > + /* just copy */ > + tcg_out_b9(s, B9_LGR, arg0, addr_reg); > +#endif > + tcg_out_b9(s, B9_AGR, arg0, arg1); > + > +#else /* CONFIG_SOFTMMU */ > + /* user mode, no address translation required */ > + arg0 = addr_reg; > +#endif > + > + switch (opc) { > + case 0: > + tcg_out_store(s, ST_STC, data_reg, arg0, 0); > + break; > + case 1: > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_store(s, ST_STH, data_reg, arg0, 0); > +#else > + tcg_out_e3(s, E3_STRVH, data_reg, arg0, 0); > +#endif > + break; > + case 2: > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_store(s, ST_ST, data_reg, arg0, 0); > +#else > + tcg_out_e3(s, E3_STRV, data_reg, arg0, 0); > +#endif > + break; > + case 3: > +#ifdef TARGET_WORDS_BIGENDIAN > + tcg_out_e3(s, E3_STG, data_reg, arg0, 0); > +#else > + tcg_out_e3(s, E3_STRVG, data_reg, arg0, 0); > +#endif > + break; > + default: > + tcg_abort(); > + } > + > +#ifdef CONFIG_SOFTMMU > + /* this is label2, patch branch */ > + *(label2_ptr + 1) = ((unsigned long)s->code_ptr - (unsigned long)label2_ptr) >> 1; > +#endif > +} > + > +static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, > + int arg1, tcg_target_long arg2) > +{ > + //fprintf(stderr,"tcg_out_st arg 0x%x arg1 0x%x arg2 0x%lx\n",arg,arg1,arg2); > + if (type == TCG_TYPE_I32) { > + if (((long)arg2) < -0x800 || ((long)arg2) > 0x7ff) { > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, arg2); > + tcg_out_b9(s, B9_AGR, 13, arg1); Does the 13 value here means TCG_REG_R13? > + tcg_out_store(s, ST_ST, arg, TCG_REG_R13, 0); > + } > + else tcg_out_store(s, ST_ST, arg, arg1, arg2); > + } > + else { > + if (((long)arg2) < -0x80000 || ((long)arg2) > 0x7ffff) tcg_abort(); > + tcg_out_e3(s, E3_STG, arg, arg1, arg2); > + } > +} Moving the function close to tcg_out_ld() could be a good idea. > +static inline void tcg_out_op(TCGContext *s, int opc, > + const TCGArg *args, const int *const_args) > +{ > + TCGLabel* l; > + int op; > + int op2; > + //fprintf(stderr,"0x%x\n", INDEX_op_divu_i32); > + switch (opc) { > + case INDEX_op_exit_tb: > + //fprintf(stderr,"op 0x%x exit_tb 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, args[0]); /* return value */ > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (unsigned long)tb_ret_addr); > + tcg_out16(s,0x7fd); /* br %r13 */ > + break; > + case INDEX_op_goto_tb: > + //fprintf(stderr,"op 0x%x goto_tb 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (s->tb_jmp_offset) { > + tcg_abort(); > + } > + else { > + tcg_target_long off = ((tcg_target_long)(s->tb_next + args[0]) - (tcg_target_long)s->code_ptr) >> 1; > + if (off > -0x80000000L && off < 0x7fffffffL) { /* load address relative to PC */ What about testing (off == (int32_t) off) instead? > + /* larl %r13, off */ > + tcg_out16(s,0xc0d0); tcg_out32(s,off); > + } > + else { /* too far for larl */ > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, (tcg_target_long)(s->tb_next + args[0])); > + } > + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R13, TCG_REG_R13, 0); /* load address stored at s->tb_next + args[0] */ > + tcg_out_rr(s, RR_BASR, TCG_REG_R13, TCG_REG_R13); /* and go there */ > + } > + s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; > + break; > + case INDEX_op_call: > + //fprintf(stderr,"op 0x%x call 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (const_args[0]) { > + tcg_target_long off = (args[0] - (tcg_target_long)s->code_ptr + 4) >> 1; /* FIXME: + 4? Where did that come from? */ > + if (off > -0x80000000 && off < 0x7fffffff) { /* relative call */ > + tcg_out_brasl(s, TCG_REG_R14, off << 1); > + tcg_abort(); // untested If not tested, it's probably better to remove this part and do not mark call accepting constants. > + } > + else { /* too far for a relative call, load full address */ > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, args[0]); > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, TCG_REG_R13); Not sure it is very useful here. It's probably better to redefine the constraints of the constant, so that the reg allocator use a register to pass the value. > + } > + } > + else { /* call function in register args[0] */ > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, args[0]); > + } > + break; > + case INDEX_op_jmp: > + fprintf(stderr,"op 0x%x jmp 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_abort(); > + break; What about implementing that? > + case INDEX_op_ld8u_i32: > + case INDEX_op_ld8u_i64: > + //fprintf(stderr,"op 0x%x ld8u_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if ((long)args[2] > -0x80000 && (long)args[2] < 0x7ffff) { > + tcg_out_e3(s, E3_LLGC, args[0], args[1], args[2]); > + } > + else { /* displacement too large, have to calculate address manually */ > + tcg_abort(); > + } That should be supported. For example the PPC cpu structure is huge and may reach such offsets. > + break; > + case INDEX_op_ld8s_i32: > + fprintf(stderr,"op 0x%x ld8s_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_abort(); Same. > + break; > + case INDEX_op_ld16u_i32: > + fprintf(stderr,"op 0x%x ld16u_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if ((long)args[2] > -0x80000 && (long)args[2] < 0x7ffff) { > + tcg_out_e3(s, E3_LLGH, args[0], args[1], args[2]); > + } > + else { /* displacement too large, have to calculate address manually */ > + tcg_abort(); > + } Same. > + break; > + case INDEX_op_ld16s_i32: > + fprintf(stderr,"op 0x%x ld16s_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_abort(); > + break; Same. > + case INDEX_op_ld_i32: > + case INDEX_op_ld32u_i64: > + tcg_out_ld(s, TCG_TYPE_I32, args[0], args[1], args[2]); > + break; > + case INDEX_op_ld32s_i64: > + if (args[2] < -0x80000 || args[2] > 0x7ffff) { > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, args[2]); /* load the displacement */ > + tcg_out_b9(s, B9_AGR, TCG_REG_R13, args[1]); /* add the address */ > + tcg_out_e3(s, E3_LGF, args[0], TCG_REG_R13, 0); /* load the data (sign-extended) */ > + } > + else { > + tcg_out_e3(s, E3_LGF, args[0], args[1], args[2]); /* load the data (sign-extended) */ > + } > + break; > + case INDEX_op_ld_i64: > + tcg_out_ld(s, TCG_TYPE_I64, args[0], args[1], args[2]); > + break; > + case INDEX_op_st8_i32: > + case INDEX_op_st8_i64: > + //fprintf(stderr,"op 0x%x st8_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (((long)args[2]) >= -0x800 && ((long)args[2]) < 0x800) > + tcg_out_store(s, ST_STC, args[0], args[1], args[2]); > + else if (((long)args[2]) >= -0x80000 && ((long)args[2]) < 0x80000) { > + tcg_out_e3(s, E3_STCY, args[0], args[1], args[2]); /* FIXME: requires long displacement facility */ > + tcg_abort(); // untested > + } > + else tcg_abort(); > + break; This should be supported. > + case INDEX_op_st16_i32: > + case INDEX_op_st16_i64: > + //fprintf(stderr,"op 0x%x st16_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (((long)args[2]) >= -0x800 && ((long)args[2]) < 0x800) > + tcg_out_store(s, ST_STH, args[0], args[1], args[2]); > + else if (((long)args[2]) >= -0x80000 && ((long)args[2]) < 0x80000) { > + tcg_out_e3(s, E3_STHY, args[0], args[1], args[2]); /* FIXME: requires long displacement facility */ > + tcg_abort(); // untested > + } > + else tcg_abort(); > + break; Same. > + case INDEX_op_st_i32: > + case INDEX_op_st32_i64: > + tcg_out_st(s, TCG_TYPE_I32, args[0], args[1], args[2]); > + break; > + case INDEX_op_st_i64: > + tcg_out_st(s, TCG_TYPE_I64, args[0], args[1], args[2]); > + break; > + case INDEX_op_mov_i32: > + fprintf(stderr,"op 0x%x mov_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_abort(); > + break; > + case INDEX_op_movi_i32: > + fprintf(stderr,"op 0x%x movi_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_abort(); > + break; mov and movi should not appear there, as they are already handled at the reg allocator level. Just drop those lines. > + case INDEX_op_add_i32: > + if (const_args[2]) { > + if (args[0] == args[1]) tcg_out_a7(s, A7_AHI, args[1], args[2]); > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); > + tcg_out_a7(s, A7_AHI, args[0], args[2]); > + } > + } > + else if (args[0] == args[1]) { > + tcg_out_rr(s, RR_AR, args[1], args[2]); > + } > + else if (args[0] == args[2]) { > + tcg_out_rr(s, RR_AR, args[0], args[1]); > + } > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); > + tcg_out_rr(s, RR_AR, args[0], args[2]); > + } I am not sure it's the best to have all those cases here. If the output register is aliased to the input registers, it should be defined in the op definition instead: { INDEX_op_add_i32, { "r", "0", "rI" } }, With this the register allocator is able to do a better job than having all the cases tested here. > + break; > + case INDEX_op_sub_i32: > + //fprintf(stderr,"op 0x%x sub_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (args[0] == args[1]) { > + tcg_out_rr(s, RR_SR, args[1], args[2]); /* sr %ra0/1, %ra2 */ > + } > + else if (args[0] == args[2]) { > + tcg_out_rr(s, RR_LR, TCG_REG_R13, args[2]); /* lr %r13, %raa0/2 */ > + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0/2, %ra1 */ > + tcg_out_rr(s, RR_SR, args[0], TCG_REG_R13); /* sr %ra0/2, %r13 */ > + } > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0, %ra1 */ > + tcg_out_rr(s, RR_SR, args[0], args[2]); /* sr %ra0, %ra2 */ > + } > + break; Same. > + case INDEX_op_sub_i64: > + //fprintf(stderr,"op 0x%x sub_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (args[0] == args[1]) { > + tcg_out_b9(s, B9_SGR, args[1], args[2]); /* sgr %ra0/1, %ra2 */ > + } > + else if (args[0] == args[2]) { > + tcg_out_b9(s, B9_LGR, TCG_REG_R13, args[2]); /* lgr %r13, %raa0/2 */ > + tcg_out_b9(s, B9_LGR, args[0], args[1]); /* lgr %ra0/2, %ra1 */ > + tcg_out_b9(s, B9_SGR, args[0], TCG_REG_R13); /* sgr %ra0/2, %r13 */ > + } > + else { > + tcg_out_b9(s, B9_LGR, args[0], args[1]); /* lgr %ra0, %ra1 */ > + tcg_out_b9(s, B9_SGR, args[0], args[2]); /* sgr %ra0, %ra2 */ > + } > + break; Same. > + case INDEX_op_add_i64: > + //fprintf(stderr,"op 0x%x add_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (args[0] == args[1]) { > + tcg_out_b9(s, B9_AGR, args[1], args[2]); > + } > + else if (args[0] == args[2]) { > + tcg_out_b9(s, B9_AGR, args[0], args[1]); > + } > + else { > + tcg_out_b9(s, B9_LGR, args[0], args[1]); > + tcg_out_b9(s, B9_AGR, args[0], args[2]); > + } > + break; This part can probably be moved close to add_i32. Also is it possible to have a constant with add_i64, similarly to add_i32? > + case INDEX_op_and_i32: > + op = RR_NR; > +do_logic_i32: > + if (args[0] == args[1]) { > + tcg_out_rr(s, op, args[1], args[2]); /* xr %ra0/1, %ra2 */ > + } > + else if (args[0] == args[2]) { > + tcg_out_rr(s, op, args[0], args[1]); /* xr %ra0/2, %ra1 */ > + } > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); /* lr %ra0, %ra1 */ > + tcg_out_rr(s, op, args[0], args[2]); /* xr %ra0, %ra2 */ > + } > + break; Same. > + case INDEX_op_or_i32: op = RR_OR; goto do_logic_i32; > + case INDEX_op_xor_i32: op = RR_XR; goto do_logic_i32; > + > + case INDEX_op_and_i64: > + //fprintf(stderr,"op 0x%x and_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + op = B9_NGR; > +do_logic_i64: > + if (args[0] == args[1]) { > + tcg_out_b9(s, op, args[0], args[2]); > + } > + else if (args[0] == args[2]) { > + tcg_out_b9(s, op, args[0], args[1]); > + } > + else { > + tcg_out_b9(s, B9_LGR, args[0], args[1]); > + tcg_out_b9(s, op, args[0], args[2]); > + } > + break; Same. > + case INDEX_op_or_i64: op = B9_OGR; goto do_logic_i64; > + case INDEX_op_xor_i64: op = B9_XGR; goto do_logic_i64; Same. > + case INDEX_op_neg_i32: > + //fprintf(stderr,"op 0x%x neg_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + /* FIXME: optimize args[0] != args[1] case */ > + tcg_out_rr(s, RR_LR, 13, args[1]); > + tcg_out32(s, 0xa7090000 | (args[0] << 20)); /* lghi %ra0, 0 */ > + tcg_out_rr(s, RR_SR, args[0], 13); Does the 13 value here means TCG_REG_R13? > + break; > + case INDEX_op_neg_i64: > + //fprintf(stderr,"op 0x%x neg_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + /* FIXME: optimize args[0] != args[1] case */ > + tcg_out_b9(s, B9_LGR, 13, args[1]); > + tcg_out32(s, 0xa7090000 | (args[0] << 20)); /* lghi %ra0, 0 */ > + tcg_out_b9(s, B9_SGR, args[0], 13); > + break; Same question. > + case INDEX_op_mul_i32: > + //fprintf(stderr,"op 0x%x mul_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (args[0] == args[1]) > + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[2]); /* msr %ra0/1, %ra2 */ > + else if (args[0] == args[2]) > + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[1]); /* msr %ra0/2, %ra1 */ > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); > + tcg_out32(s, 0xb2520000 | (args[0] << 4) | args[2]); /* msr %ra0, %ra2 */ > + } > + break; The same way, the fact that input and output register are aliased should be marked in the opc definition. > + case INDEX_op_mul_i64: > + //fprintf(stderr,"op 0x%x mul_i64 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + if (args[0] == args[1]) { > + tcg_out_b9(s, B9_MSGR, args[0], args[2]); > + } > + else if (args[0] == args[2]) { > + tcg_out_b9(s, B9_MSGR, args[0], args[1]); > + } > + else tcg_abort(); > + break; Same > + case INDEX_op_divu_i32: > + case INDEX_op_remu_i32: > + //fprintf(stderr,"op 0x%x div/remu_i32 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R12, 0); > + tcg_out_rr(s, RR_LR, TCG_REG_R13, args[1]); > + tcg_out_b9(s, B9_DLR, TCG_REG_R12, args[2]); > + if (opc == INDEX_op_divu_i32) > + tcg_out_rr(s, RR_LR, args[0], TCG_REG_R13); /* quotient */ > + else > + tcg_out_rr(s, RR_LR, args[0], TCG_REG_R12); /* remainder */ > + break; > + > + case INDEX_op_shl_i32: > + op = SH32_SLL; op2 = SH64_SLLG; > +do_shift32: > + if (const_args[2]) { > + if (args[0] == args[1]) { > + tcg_out_sh32(s, op, args[0], SH32_REG_NONE, args[2]); > + } > + else { > + tcg_out_rr(s, RR_LR, args[0], args[1]); > + tcg_out_sh32(s, op, args[0], SH32_REG_NONE, args[2]); > + } > + } > + else { > + if (args[0] == args[1]) { > + tcg_out_sh32(s, op, args[0], args[2], 0); > + } > + else > + tcg_out_sh64(s, op2, args[0], args[1], args[2], 0); > + } > + break; Same > + case INDEX_op_shr_i32: op = SH32_SRL; op2 = SH64_SRLG; goto do_shift32; > + case INDEX_op_sar_i32: op = SH32_SRA; op2 = SH64_SRAG; goto do_shift32; > + > + case INDEX_op_shl_i64: > + op = SH64_SLLG; > +do_shift64: > + if (const_args[2]) { > + tcg_out_sh64(s, op, args[0], args[1], SH64_REG_NONE, args[2]); > + } > + else { > + tcg_out_sh64(s, op, args[0], args[1], args[2], 0); > + } > + break; > + case INDEX_op_shr_i64: op = SH64_SRLG; goto do_shift64; > + case INDEX_op_sar_i64: op = SH64_SRAG; goto do_shift64; Same > + case INDEX_op_br: > + //fprintf(stderr,"op 0x%x br 0x%lx 0x%lx 0x%lx\n",opc,args[0],args[1],args[2]); > + l = &s->labels[args[0]]; > + if (l->has_value) { > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, l->u.value); > + } > + else { > + /* larl %r13, ... */ > + tcg_out16(s, 0xc0d0); > + tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, args[0], -2); > + s->code_ptr += 4; > + } > + tcg_out_rr(s, RR_BASR, TCG_REG_R13, TCG_REG_R13); > + break; > + case INDEX_op_brcond_i64: > + //fprintf(stderr,"op 0x%x brcond_i64 0x%lx 0x%lx (c %d) 0x%lx\n",opc,args[0],args[1],const_args[1],args[2]); > + if (args[2] > TCG_COND_GT) { /* unsigned */ > + tcg_out_b9(s, B9_CLGR, args[0], args[1]); /* clgr %ra0, %ra1 */ > + } > + else { /* signed */ > + tcg_out_b9(s, B9_CGR, args[0], args[1]); /* cgr %ra0, %ra1 */ > + } > + goto do_brcond; > + case INDEX_op_brcond_i32: > + //fprintf(stderr,"op 0x%x brcond_i32 0x%lx 0x%lx (c %d) 0x%lx\n",opc,args[0],args[1],const_args[1],args[2]); > + if (args[2] > TCG_COND_GT) { /* unsigned */ > + tcg_out_rr(s, RR_CLR, args[0], args[1]); /* clr %ra0, %ra1 */ > + } > + else { /* signed */ > + tcg_out_rr(s, RR_CR, args[0], args[1]); /* cr %ra0, %ra1 */ > + } > +do_brcond: > + l = &s->labels[args[3]]; > + if (l->has_value) { > + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R13, l->u.value); > + } > + else { > + /* larl %r13, ... */ > + tcg_out16(s, 0xc0d0); > + tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, args[3], -2); > + s->code_ptr += 4; > + } > + tcg_out16(s, 0x070d | (tcg_cond_to_s390_cond[args[2]] << 4)); /* bcr cond,%r13 */ > + break; > + > + case INDEX_op_qemu_ld8u: tcg_out_qemu_ld(s, args, 0); break; > + case INDEX_op_qemu_ld8s: tcg_out_qemu_ld(s, args, 0 | 4); break; > + case INDEX_op_qemu_ld16u: tcg_out_qemu_ld(s, args, 1); break; > + case INDEX_op_qemu_ld16s: tcg_out_qemu_ld(s, args, 1 | 4); break; > + case INDEX_op_qemu_ld32u: tcg_out_qemu_ld(s, args, 2); break; > + case INDEX_op_qemu_ld32s: tcg_out_qemu_ld(s, args, 2 | 4); break; > + case INDEX_op_qemu_ld64: tcg_out_qemu_ld(s, args, 3); break; > + case INDEX_op_qemu_st8: tcg_out_qemu_st(s, args, 0); break; > + case INDEX_op_qemu_st16: tcg_out_qemu_st(s, args, 1); break; > + case INDEX_op_qemu_st32: tcg_out_qemu_st(s, args, 2); break; > + case INDEX_op_qemu_st64: tcg_out_qemu_st(s, args, 3); break; > + > + default: > + fprintf(stderr,"unimplemented opc 0x%x\n",opc); > + tcg_abort(); > + } > +} > + > +static const TCGTargetOpDef s390_op_defs[] = { > + { INDEX_op_exit_tb, { } }, > + { INDEX_op_goto_tb, { } }, > + { INDEX_op_call, { "ri" } }, > + { INDEX_op_jmp, { "ri" } }, > + { INDEX_op_br, { } }, > + > + { INDEX_op_mov_i32, { "r", "r" } }, > + { INDEX_op_movi_i32, { "r" } }, > + > + { INDEX_op_ld8u_i32, { "r", "r" } }, > + { INDEX_op_ld8s_i32, { "r", "r" } }, > + { INDEX_op_ld16u_i32, { "r", "r" } }, > + { INDEX_op_ld16s_i32, { "r", "r" } }, > + { INDEX_op_ld_i32, { "r", "r" } }, > + { INDEX_op_st8_i32, { "r", "r" } }, > + { INDEX_op_st16_i32, { "r", "r" } }, > + { INDEX_op_st_i32, { "r", "r" } }, > + > + { INDEX_op_add_i32, { "r", "r", "rI" } }, > + { INDEX_op_sub_i32, { "r", "r", "r" } }, > + { INDEX_op_mul_i32, { "r", "r", "r" } }, > + > + { INDEX_op_div_i32, { "r", "r", "r" } }, > + { INDEX_op_divu_i32, { "r", "r", "r" } }, > + { INDEX_op_rem_i32, { "r", "r", "r" } }, > + { INDEX_op_remu_i32, { "r", "r", "r" } }, > + > + { INDEX_op_and_i32, { "r", "r", "r" } }, > + { INDEX_op_or_i32, { "r", "r", "r" } }, > + { INDEX_op_xor_i32, { "r", "r", "r" } }, > + { INDEX_op_neg_i32, { "r", "r" } }, > + > + { INDEX_op_shl_i32, { "r", "r", "Ri" } }, > + { INDEX_op_shr_i32, { "r", "r", "Ri" } }, > + { INDEX_op_sar_i32, { "r", "r", "Ri" } }, > + > + { INDEX_op_brcond_i32, { "r", "r" } }, > + > + { INDEX_op_qemu_ld8u, { "r", "L" } }, > + { INDEX_op_qemu_ld8s, { "r", "L" } }, > + { INDEX_op_qemu_ld16u, { "r", "L" } }, > + { INDEX_op_qemu_ld16s, { "r", "L" } }, > + { INDEX_op_qemu_ld32u, { "r", "L" } }, > + { INDEX_op_qemu_ld32s, { "r", "L" } }, > + > + { INDEX_op_qemu_st8, { "S", "S" } }, > + { INDEX_op_qemu_st16, { "S", "S" } }, > + { INDEX_op_qemu_st32, { "S", "S" } }, > + > +#if defined(__s390x__) > + { INDEX_op_mov_i64, { "r", "r" } }, > + { INDEX_op_movi_i64, { "r" } }, > + > + { INDEX_op_ld8u_i64, { "r", "r" } }, > + { INDEX_op_ld8s_i64, { "r", "r" } }, > + { INDEX_op_ld16u_i64, { "r", "r" } }, > + { INDEX_op_ld16s_i64, { "r", "r" } }, > + { INDEX_op_ld32u_i64, { "r", "r" } }, > + { INDEX_op_ld32s_i64, { "r", "r" } }, > + { INDEX_op_ld_i64, { "r", "r" } }, > + > + { INDEX_op_st8_i64, { "r", "r" } }, > + { INDEX_op_st16_i64, { "r", "r" } }, > + { INDEX_op_st32_i64, { "r", "r" } }, > + { INDEX_op_st_i64, { "r", "r" } }, > + > + { INDEX_op_qemu_ld64, { "L", "L" } }, > + { INDEX_op_qemu_st64, { "S", "S" } }, > + > + { INDEX_op_add_i64, { "r", "r", "r" } }, > + { INDEX_op_mul_i64, { "r", "r", "r" } }, > + { INDEX_op_sub_i64, { "r", "r", "r" } }, > + > + { INDEX_op_and_i64, { "r", "r", "r" } }, > + { INDEX_op_or_i64, { "r", "r", "r" } }, > + { INDEX_op_xor_i64, { "r", "r", "r" } }, > + { INDEX_op_neg_i64, { "r", "r" } }, > + > + { INDEX_op_shl_i64, { "r", "r", "Ri" } }, > + { INDEX_op_shr_i64, { "r", "r", "Ri" } }, > + { INDEX_op_sar_i64, { "r", "r", "Ri" } }, > + > + { INDEX_op_brcond_i64, { "r", "r" } }, No 64-bit division/remainder? > +#endif > + > + { -1 }, > +}; > + > +void tcg_target_init(TCGContext *s) > +{ > + /* fail safe */ > + if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry)) > + tcg_abort(); > + > + tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff); > + tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff); > + tcg_regset_set32(tcg_target_call_clobber_regs, 0, > + (1 << TCG_REG_R0) | > + (1 << TCG_REG_R1) | > + (1 << TCG_REG_R2) | > + (1 << TCG_REG_R3) | > + (1 << TCG_REG_R4) | > + (1 << TCG_REG_R5) | > + (1 << TCG_REG_R14)); /* link register */ > + > + tcg_regset_clear(s->reserved_regs); > + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* frequently used as a temporary */ > + tcg_regset_set_reg(s->reserved_regs, TCG_REG_R12); /* another temporary */ > + > + tcg_add_target_add_op_defs(s390_op_defs); > +} > + > +void tcg_target_qemu_prologue(TCGContext *s) > +{ > + tcg_out16(s,0xeb6f);tcg_out32(s,0xf0300024); /* stmg %r6,%r15,48(%r15) (save registers) */ > + tcg_out32(s, 0xa7fbff60); /* aghi %r15,-160 (stack frame) */ > + tcg_out16(s,0x7f2); /* br %r2 (go to TB) */ > + tb_ret_addr = s->code_ptr; > + tcg_out16(s,0xeb6f);tcg_out32(s, 0xf0d00004); /* lmg %r6,%r15,208(%r15) (restore registers) */ > + tcg_out16(s,0x7fe); /* br %r14 (return) */ Would be nice to define the corresponding tcg_out_* functions with the corresponding enum instead of using magic values. > +} > + > + > +static inline void tcg_out_mov(TCGContext *s, int ret, int arg) > +{ > + tcg_out_b9(s, B9_LGR, ret, arg); > +} > + > +static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) > +{ > + tcg_abort(); > +} Why this one is not implemented? This is definitely needed so that arguments can be passed on the stack. > diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h > new file mode 100644 > index 0000000..fcb28d1 > --- /dev/null > +++ b/tcg/s390/tcg-target.h > @@ -0,0 +1,76 @@ > +/* > + * Tiny Code Generator for QEMU > + * > + * Copyright (c) 2009 Ulrich Hecht <uli@suse.de> > + * > + * Permission is hereby granted, free of charge, to any person obtaining a copy > + * of this software and associated documentation files (the "Software"), to deal > + * in the Software without restriction, including without limitation the rights > + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell > + * copies of the Software, and to permit persons to whom the Software is > + * furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice shall be included in > + * all copies or substantial portions of the Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, > + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN > + * THE SOFTWARE. > + */ > +#define TCG_TARGET_S390 1 > + > +#define TCG_TARGET_REG_BITS 64 > +#define TCG_TARGET_WORDS_BIGENDIAN > +#define TCG_TARGET_HAS_div_i32 > +#undef TCG_TARGET_HAS_div_i64 Is that corrects? It looks strange an architecture has different division in 32- and 64-bits mode. > +#undef TCG_TARGET_HAS_bswap_i32 > +#define TCG_TARGET_HAS_neg_i32 > +#define TCG_TARGET_HAS_neg_i64 > +#undef TCG_TARGET_STACK_GROWSUP > + > +enum { > + TCG_REG_R0 = 0, > + TCG_REG_R1, > + TCG_REG_R2, > + TCG_REG_R3, > + TCG_REG_R4, > + TCG_REG_R5, > + TCG_REG_R6, > + TCG_REG_R7, > + TCG_REG_R8, > + TCG_REG_R9, > + TCG_REG_R10, > + TCG_REG_R11, > + TCG_REG_R12, > + TCG_REG_R13, > + TCG_REG_R14, > + TCG_REG_R15 > +}; > +#define TCG_TARGET_NB_REGS 16 > + > +/* used for function call generation */ > +#define TCG_REG_CALL_STACK TCG_REG_R15 > +#define TCG_TARGET_STACK_ALIGN 8 > +#define TCG_TARGET_CALL_STACK_OFFSET 0 > + > +enum { > + /* Note: must be synced with dyngen-exec.h */ > + TCG_AREG0 = TCG_REG_R10, > + TCG_AREG1 = TCG_REG_R7, > + TCG_AREG2 = TCG_REG_R8, > + TCG_AREG3 = TCG_REG_R9, > +}; As said this should be synced with dyngen-exec.h by removing TCG_AREG3. > +static inline void flush_icache_range(unsigned long start, unsigned long stop) > +{ > +#if QEMU_GNUC_PREREQ(4, 1) > + void __clear_cache(char *beg, char *end); > + __clear_cache((char *) start, (char *) stop); > +#else > +#error not implemented > +#endif > +} > -- > 1.6.2.1 > > > > -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 3/4] S/390 host support for TCG 2009-11-02 17:17 ` Aurelien Jarno @ 2009-11-09 16:54 ` Ulrich Hecht 2009-11-10 17:01 ` Aurelien Jarno 0 siblings, 1 reply; 14+ messages in thread From: Ulrich Hecht @ 2009-11-09 16:54 UTC (permalink / raw) To: Aurelien Jarno; +Cc: aliguori, riku.voipio, qemu-devel On Monday 02 November 2009, Aurelien Jarno wrote: > First of all I have a question about s390/s390x. It seems that you > plan to support both s390 and s390x in the same file. Is that correct? Actually, I didn't think about supporting s390 hosts at all, but it should be possible. > Do you know how far the 32-bit support is far from compiling/working? It is not entirely unlikely that it's close. You obviously can't use the 64-bit instructions on a 31-bit host, but other than that... > Would it be really possible to support both in the same file? It would, but we would need different implementations for the 64-bit operations. From a practical point of view, I don't see any merit in supporting 31-bit hosts, simply because there aren't many in use anymore. (It's a different story for the target: 31-bit _software_ is still widespread.) > > +SEARCH_DIR("/usr/s390x-suse-linux/lib64"); > > SEARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); > > SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/s390x-suse-linux/lib"); > > SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); > > SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); > > Why adding some search directories manually here? The one you are > adding are SuSE specific. They should already be detected by the > configure script and added to config-host.ld. I merely copied the linker script and made some minor adjustments, I didn't really pay much attention to what it actually contains... > > + tcg_out32(s, 0xa7840000); /* je label1 (offset will be patched > > in later) */ > > Would be nice to have the corresponding tcg_out_ function and the > corresponding value instead of the magic value. Also I am not sure the > comment is correct here, "je" being an x86_64 instruction. objdump disassembles it as "je", though the POP doesn't specify any aliases for the different mask values for BRC. > > + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, > > SH64_REG_NONE, 48); + break; > > + case 2 | 4: > > + tcg_out_b9(s, B9_LGFR, data_reg, arg0); > > + break; > > + case 0: case 1: case 2: case 3: default: > > + /* unsigned -> just copy */ > > + tcg_out_b9(s, B9_LGR, data_reg, arg0); > > Is it always correct? On x86_64, starting with gcc 4.3, it is not > guaranteed anymore that non used bits are set to 0. Do I understand you correctly in that you are suggesting to do an explicit zero extension here? (But what does GCC have to do with TCG-generated code?) > > + case INDEX_op_call: > > + //fprintf(stderr,"op 0x%x call 0x%lx 0x%lx > > 0x%lx\n",opc,args[0],args[1],args[2]); + if (const_args[0]) { > > + tcg_target_long off = (args[0] - > > (tcg_target_long)s->code_ptr + 4) >> 1; /* FIXME: + 4? Where did > > that come from? */ + if (off > -0x80000000 && off < > > 0x7fffffff) { /* relative call */ + tcg_out_brasl(s, > > TCG_REG_R14, off << 1); > > + tcg_abort(); // untested > > If not tested, it's probably better to remove this part and do not > mark call accepting constants. I suppose so. It's obviously never used anyway. > > > + } > > + else { /* too far for a relative call, load full > > address */ + tcg_out_movi(s, TCG_TYPE_PTR, > > TCG_REG_R13, args[0]); + tcg_out_rr(s, RR_BASR, > > TCG_REG_R14, TCG_REG_R13); > > Not sure it is very useful here. It's probably better to redefine the > constraints of the constant, so that the reg allocator use a register > to pass the value. > > > + } > > + } > > + else { /* call function in register args[0] */ > > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, args[0]); > > + } > > + break; > > + case INDEX_op_jmp: > > + fprintf(stderr,"op 0x%x jmp 0x%lx 0x%lx > > 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); > > + break; > > What about implementing that? Do you know a target that actually uses it? I try to avoid implementing stuff that I can't test. > > +static inline void tcg_out_addi(TCGContext *s, int reg, > > tcg_target_long val) +{ > > + tcg_abort(); > > +} > > Why this one is not implemented? This is definitely needed so that > arguments can be passed on the stack. Generally, if something is not implemented yet it's because it has never been used anywhere. > > +#define TCG_TARGET_HAS_div_i32 > > +#undef TCG_TARGET_HAS_div_i64 > > Is that corrects? It looks strange an architecture has different > division in 32- and 64-bits mode. The 64-bit instruction set actually has both. Maybe I just forgot to implement it. CU Uli -- SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 3/4] S/390 host support for TCG 2009-11-09 16:54 ` Ulrich Hecht @ 2009-11-10 17:01 ` Aurelien Jarno 0 siblings, 0 replies; 14+ messages in thread From: Aurelien Jarno @ 2009-11-10 17:01 UTC (permalink / raw) To: Ulrich Hecht; +Cc: aliguori, riku.voipio, qemu-devel On Mon, Nov 09, 2009 at 06:54:28PM +0200, Ulrich Hecht wrote: > On Monday 02 November 2009, Aurelien Jarno wrote: > > First of all I have a question about s390/s390x. It seems that you > > plan to support both s390 and s390x in the same file. Is that correct? > > Actually, I didn't think about supporting s390 hosts at all, but it > should be possible. > > > Do you know how far the 32-bit support is far from compiling/working? > > It is not entirely unlikely that it's close. You obviously can't use the > 64-bit instructions on a 31-bit host, but other than that... > > > Would it be really possible to support both in the same file? > > It would, but we would need different implementations for the 64-bit > operations. > > From a practical point of view, I don't see any merit in supporting > 31-bit hosts, simply because there aren't many in use anymore. (It's a > different story for the target: 31-bit _software_ is still widespread.) My question was mainly to choose the name for the directory between s390/s390x. If it is possibly doable, I think we can keep s390. > > > +SEARCH_DIR("/usr/s390x-suse-linux/lib64"); > > > SEARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); > > > SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/s390x-suse-linux/lib"); > > > SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); > > > SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); > > > > Why adding some search directories manually here? The one you are > > adding are SuSE specific. They should already be detected by the > > configure script and added to config-host.ld. > > I merely copied the linker script and made some minor adjustments, I > didn't really pay much attention to what it actually contains... > > > > + tcg_out32(s, 0xa7840000); /* je label1 (offset will be patched > > > in later) */ > > > > Would be nice to have the corresponding tcg_out_ function and the > > corresponding value instead of the magic value. Also I am not sure the > > comment is correct here, "je" being an x86_64 instruction. > > objdump disassembles it as "je", though the POP doesn't specify any > aliases for the different mask values for BRC. ok > > > + tcg_out_sh64(s, SH64_SRAG, data_reg, data_reg, > > > SH64_REG_NONE, 48); + break; > > > + case 2 | 4: > > > + tcg_out_b9(s, B9_LGFR, data_reg, arg0); > > > + break; > > > + case 0: case 1: case 2: case 3: default: > > > + /* unsigned -> just copy */ > > > + tcg_out_b9(s, B9_LGR, data_reg, arg0); > > > > Is it always correct? On x86_64, starting with gcc 4.3, it is not > > guaranteed anymore that non used bits are set to 0. > > Do I understand you correctly in that you are suggesting to do an > explicit zero extension here? (But what does GCC have to do with > TCG-generated code?) Yes, this is my suggestion. The value from here is returned by GCC, so you have to comply with the ABI for exchanging data. I am not sure it is needed, I just say it may worth checking that. For example on ia64 the ABI says that the returned value is filled with undefined value if the returned value's size is less than the register size. > > > + case INDEX_op_call: > > > + //fprintf(stderr,"op 0x%x call 0x%lx 0x%lx > > > 0x%lx\n",opc,args[0],args[1],args[2]); + if (const_args[0]) { > > > + tcg_target_long off = (args[0] - > > > (tcg_target_long)s->code_ptr + 4) >> 1; /* FIXME: + 4? Where did > > > that come from? */ + if (off > -0x80000000 && off < > > > 0x7fffffff) { /* relative call */ + tcg_out_brasl(s, > > > TCG_REG_R14, off << 1); > > > + tcg_abort(); // untested > > > > If not tested, it's probably better to remove this part and do not > > mark call accepting constants. > > I suppose so. It's obviously never used anyway. > > > > > > + } > > > + else { /* too far for a relative call, load full > > > address */ + tcg_out_movi(s, TCG_TYPE_PTR, > > > TCG_REG_R13, args[0]); + tcg_out_rr(s, RR_BASR, > > > TCG_REG_R14, TCG_REG_R13); > > > > Not sure it is very useful here. It's probably better to redefine the > > constraints of the constant, so that the reg allocator use a register > > to pass the value. > > > > > + } > > > + } > > > + else { /* call function in register args[0] */ > > > + tcg_out_rr(s, RR_BASR, TCG_REG_R14, args[0]); > > > + } > > > + break; > > > + case INDEX_op_jmp: > > > + fprintf(stderr,"op 0x%x jmp 0x%lx 0x%lx > > > 0x%lx\n",opc,args[0],args[1],args[2]); + tcg_abort(); > > > + break; > > > > What about implementing that? > > Do you know a target that actually uses it? I try to avoid implementing > stuff that I can't test. Currently I can't find one. However it should not be very different than implementing call. > > > +static inline void tcg_out_addi(TCGContext *s, int reg, > > > tcg_target_long val) +{ > > > + tcg_abort(); > > > +} > > > > Why this one is not implemented? This is definitely needed so that > > arguments can be passed on the stack. > > Generally, if something is not implemented yet it's because it has never > been used anywhere. It is used in tcg/tcg.c to pass values on the stack, so I am pretty sure it is used by some targets having helpers with high number of arguments. > > > +#define TCG_TARGET_HAS_div_i32 > > > +#undef TCG_TARGET_HAS_div_i64 > > > > Is that corrects? It looks strange an architecture has different > > division in 32- and 64-bits mode. > > The 64-bit instruction set actually has both. Maybe I just forgot to > implement it. > This op is definitely needed, for example to boot a linux kernel under qemu-system-mips64(el). It is however not used in x86/x86_64 targets. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net ^ permalink raw reply [flat|nested] 14+ messages in thread
[parent not found: <m3vdlirkqw.fsf@neno.mitica>]
* [Qemu-devel] Re: [PATCH 2/4] S/390 host/target build system support [not found] ` <m3vdlirkqw.fsf@neno.mitica> @ 2009-07-27 10:20 ` Ulrich Hecht 0 siblings, 0 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-27 10:20 UTC (permalink / raw) To: Juan Quintela; +Cc: aliguori, riku.voipio, qemu-devel On Friday 24 July 2009, Juan Quintela wrote: > > @@ -2006,6 +2011,13 @@ case "$target_arch2" in > > echo "TARGET_ABI32=y" >> $config_mak > > target_phys_bits=64 > > ;; > > + s390x) > > + echo "TARGET_ARCH=s390x" >> $config_mak > > > > > > + echo "#define TARGET_ARCH \"s390x\"" >> $config_h > > + echo "#define TARGET_S390X 1" >> $config_h > > You can remove this two lines, they are not necesary anymore, they are > generated from the previous one. And even that line isn't necessary, I think. I'll post a fixed patch later. CU Uli -- SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 1/4] S/390 CPU emulation 2009-07-24 17:08 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 2/4] S/390 host/target build system support Ulrich Hecht @ 2009-07-25 17:05 ` Blue Swirl 2009-07-27 10:54 ` Ulrich Hecht 2009-07-27 11:09 ` Filip Navara 1 sibling, 2 replies; 14+ messages in thread From: Blue Swirl @ 2009-07-25 17:05 UTC (permalink / raw) To: Ulrich Hecht; +Cc: aliguori, riku.voipio, qemu-devel The line wrapping seems to be hosed somewhere. On Fri, Jul 24, 2009 at 8:08 PM, Ulrich Hecht<uli@suse.de> wrote: + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA Please use the following text instead: if not, see <http://www.gnu.org/licenses/>. ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 1/4] S/390 CPU emulation 2009-07-25 17:05 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Blue Swirl @ 2009-07-27 10:54 ` Ulrich Hecht 2009-07-27 11:09 ` Filip Navara 1 sibling, 0 replies; 14+ messages in thread From: Ulrich Hecht @ 2009-07-27 10:54 UTC (permalink / raw) To: Blue Swirl; +Cc: aliguori, riku.voipio, qemu-devel On Saturday 25 July 2009, Blue Swirl wrote: > The line wrapping seems to be hosed somewhere. Don't really see what you're referring to. The patches sent look alright to me. CU Uli -- SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 1/4] S/390 CPU emulation 2009-07-25 17:05 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Blue Swirl 2009-07-27 10:54 ` Ulrich Hecht @ 2009-07-27 11:09 ` Filip Navara 1 sibling, 0 replies; 14+ messages in thread From: Filip Navara @ 2009-07-27 11:09 UTC (permalink / raw) To: Blue Swirl; +Cc: aliguori, riku.voipio, qemu-devel On Sat, Jul 25, 2009 at 7:05 PM, Blue Swirl<blauwirbel@gmail.com> wrote: > The line wrapping seems to be hosed somewhere. It looks good in my mail reader. F. ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [Qemu-devel] [PATCH 0/4] S/390 host and target support 2009-07-24 17:08 [Qemu-devel] [PATCH 0/4] S/390 host and target support Ulrich Hecht 2009-07-24 17:08 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Ulrich Hecht @ 2009-10-06 23:22 ` Alexander Graf 1 sibling, 0 replies; 14+ messages in thread From: Alexander Graf @ 2009-10-06 23:22 UTC (permalink / raw) To: Ulrich Hecht; +Cc: aliguori, riku.voipio, qemu-devel On 24.07.2009, at 19:08, Ulrich Hecht wrote: > Here's the host support again, and the s390x-linux-user target, > which I > think are both ready for prime time now. > > The target has received an inordinate number of fixes and new > instructions > and now passes several test suites (including openssl and gcc > executable > tests), can compile source code, run ssh, rpm, you name it. It also > fares > reasonably well at LTP, especially with the bundle of syscall fixes > I'm > going to post later. > > Performance has improved dramatically since last time, by a factor > of six or > so. I measured md5sum clocking about 4.8 times as many cycles on my > Phenom > with qemu-s390x as natively on our z10. > > The host part has not changed dramatically. A small fix, a small > optimization, and a bit of formatting to comply with the coding > style. S/390 > on S/390 emulation works, too. :) Any progress on including S390 host/guest support upstream? I'd like to build something based on this patchset :-). Alex ^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2009-11-10 17:01 UTC | newest]
Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
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2009-07-24 17:08 [Qemu-devel] [PATCH 0/4] S/390 host and target support Ulrich Hecht
2009-07-24 17:08 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Ulrich Hecht
2009-07-24 17:08 ` [Qemu-devel] [PATCH 2/4] S/390 host/target build system support Ulrich Hecht
2009-07-24 17:08 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG Ulrich Hecht
2009-07-24 17:08 ` [Qemu-devel] [PATCH 4/4] linux-user: S/390 64-bit (s390x) support Ulrich Hecht
2009-07-24 17:59 ` [Qemu-devel] [PATCH 3/4] S/390 host support for TCG malc
2009-11-02 17:17 ` Aurelien Jarno
2009-11-09 16:54 ` Ulrich Hecht
2009-11-10 17:01 ` Aurelien Jarno
[not found] ` <m3vdlirkqw.fsf@neno.mitica>
2009-07-27 10:20 ` [Qemu-devel] Re: [PATCH 2/4] S/390 host/target build system support Ulrich Hecht
2009-07-25 17:05 ` [Qemu-devel] [PATCH 1/4] S/390 CPU emulation Blue Swirl
2009-07-27 10:54 ` Ulrich Hecht
2009-07-27 11:09 ` Filip Navara
2009-10-06 23:22 ` [Qemu-devel] [PATCH 0/4] S/390 host and target support Alexander Graf
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