From: Yongbok Kim <yongbok.kim@mips.com>
To: qemu-devel@nongnu.org
Cc: aurelien@aurel32.net, Aleksandar.Markovic@mips.com,
James.Hogan@mips.com, Paul.Burton@mips.com,
Matthew.Fortune@mips.com, Stefan.Markovic@mips.com
Subject: [Qemu-devel] [PATCH 17/35] target/mips: Add nanoMIPS load store instructions
Date: Wed, 20 Jun 2018 13:06:02 +0100 [thread overview]
Message-ID: <20180620120620.12806-18-yongbok.kim@mips.com> (raw)
In-Reply-To: <20180620120620.12806-1-yongbok.kim@mips.com>
Add nanoMIPS load and store instructions
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
---
target/mips/translate.c | 271 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 271 insertions(+)
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 2e794da..08765a7 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -17379,10 +17379,281 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx)
}
break;
case NM_P_GP_BH:
+ {
+ uint32_t u = extract32(ctx->opcode, 0, 18);
+ switch ((ctx->opcode >> 18) & 0x7) {
+ case NM_LBGP:
+ gen_ld(ctx, OPC_LB, rt, 28, u);
+ break;
+ case NM_SBGP:
+ gen_st(ctx, OPC_SB, rt, 28, u);
+ break;
+ case NM_LBUGP:
+ gen_ld(ctx, OPC_LBU, rt, 28, u);
+ break;
+ case NM_ADDIUGP_B:
+ gen_arith_imm(ctx, OPC_ADDIU, rt, 28, u);
+ break;
+ case NM_P_GP_LH:
+ u &= ~1;
+ switch (ctx->opcode & 1) {
+ case NM_LHGP:
+ gen_ld(ctx, OPC_LH, rt, 28, u);
+ break;
+ case NM_LHUGP:
+ gen_ld(ctx, OPC_LHU, rt, 28, u);
+ break;
+ }
+ break;
+ case NM_P_GP_SH:
+ u &= ~1;
+ switch (ctx->opcode & 1) {
+ case NM_SHGP:
+ gen_st(ctx, OPC_SH, rt, 28, u);
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ break;
+ case NM_P_GP_CP1:
+ u &= ~0x3;
+ switch ((ctx->opcode & 0x3)) {
+ case NM_LWC1GP:
+ gen_cop1_ldst(ctx, OPC_LWC1, rt, 28, u);
+ break;
+ case NM_LDC1GP:
+ gen_cop1_ldst(ctx, OPC_LDC1, rt, 28, u);
+ break;
+ case NM_SWC1GP:
+ gen_cop1_ldst(ctx, OPC_SWC1, rt, 28, u);
+ break;
+ case NM_SDC1GP:
+ gen_cop1_ldst(ctx, OPC_SDC1, rt, 28, u);
+ break;
+ }
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ }
break;
case NM_P_LS_U12:
+ {
+ uint32_t u = extract32(ctx->opcode, 0, 12);
+ switch ((ctx->opcode >> 12) & 0x0f) {
+ case NM_P_PREFU12:
+ if (rt == 31) {
+ /* SYNCI */
+ /* Break the TB to be able to sync copied instructions
+ immediately */
+ ctx->base.is_jmp = DISAS_STOP;
+ } else {
+ /* PREF */
+ /* Treat as NOP. */
+ }
+ break;
+ case NM_LB:
+ gen_ld(ctx, OPC_LB, rt, rs, u);
+ break;
+ case NM_LH:
+ gen_ld(ctx, OPC_LH, rt, rs, u);
+ break;
+ case NM_LW:
+ gen_ld(ctx, OPC_LW, rt, rs, u);
+ break;
+ case NM_LBU:
+ gen_ld(ctx, OPC_LBU, rt, rs, u);
+ break;
+ case NM_LHU:
+ gen_ld(ctx, OPC_LHU, rt, rs, u);
+ break;
+ case NM_SB:
+ gen_st(ctx, OPC_SB, rt, rs, u);
+ break;
+ case NM_SH:
+ gen_st(ctx, OPC_SH, rt, rs, u);
+ break;
+ case NM_SW:
+ gen_st(ctx, OPC_SW, rt, rs, u);
+ break;
+ case NM_LWC1:
+ gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, u);
+ break;
+ case NM_LDC1:
+ gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, u);
+ break;
+ case NM_SWC1:
+ gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, u);
+ break;
+ case NM_SDC1:
+ gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, u);
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ }
break;
case NM_P_LS_S9:
+ {
+ int32_t s = (sextract32(ctx->opcode, 15, 1) << 8) |
+ extract32(ctx->opcode, 0, 8);
+ switch ((ctx->opcode >> 8) & 0x07) {
+ case NM_P_LS_S0:
+ switch ((ctx->opcode >> 11) & 0x0f) {
+ case NM_LBS9:
+ gen_ld(ctx, OPC_LB, rt, rs, s);
+ break;
+ case NM_LHS9:
+ gen_ld(ctx, OPC_LH, rt, rs, s);
+ break;
+ case NM_LWS9:
+ gen_ld(ctx, OPC_LW, rt, rs, s);
+ break;
+ case NM_LBUS9:
+ gen_ld(ctx, OPC_LBU, rt, rs, s);
+ break;
+ case NM_LHUS9:
+ gen_ld(ctx, OPC_LHU, rt, rs, s);
+ break;
+ case NM_SBS9:
+ gen_st(ctx, OPC_SB, rt, rs, s);
+ break;
+ case NM_SHS9:
+ gen_st(ctx, OPC_SH, rt, rs, s);
+ break;
+ case NM_SWS9:
+ gen_st(ctx, OPC_SW, rt, rs, s);
+ break;
+ case NM_LWC1S9:
+ gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, s);
+ break;
+ case NM_LDC1S9:
+ gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, s);
+ break;
+ case NM_SWC1S9:
+ gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, s);
+ break;
+ case NM_SDC1S9:
+ gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, s);
+ break;
+ case NM_P_PREFS9:
+ if (rt == 31) {
+ /* SYNCI */
+ /* Break the TB to be able to sync copied instructions
+ immediately */
+ ctx->base.is_jmp = DISAS_STOP;
+ } else {
+ /* PREF */
+ /* Treat as NOP. */
+ }
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ break;
+ case NM_P_LS_S1:
+ switch ((ctx->opcode >> 11) & 0x0f) {
+ case NM_UALH:
+ case NM_UASH:
+ {
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+
+ gen_base_offset_addr(ctx, t0, rs, s);
+
+ switch ((ctx->opcode >> 11) & 0x0f) {
+ case NM_UALH:
+ tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW |
+ MO_UNALN);
+ gen_store_gpr(t0, rt);
+ break;
+ case NM_UASH:
+ gen_load_gpr(t1, rt);
+ tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW |
+ MO_UNALN);
+ break;
+ }
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ }
+ break;
+ case NM_P_LL:
+ switch (ctx->opcode & 0x03) {
+ case NM_LL:
+ gen_ld(ctx, OPC_LL, rt, rs, s);
+ break;
+ case NM_LLWP:
+ break;
+ }
+ break;
+ case NM_P_SC:
+ switch (ctx->opcode & 0x03) {
+ case NM_SC:
+ gen_st_cond(ctx, OPC_SC, rt, rs, s);
+ break;
+ case NM_SCWP:
+ break;
+ }
+ break;
+ case NM_CACHE:
+ check_cp0_enabled(ctx);
+ if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
+ gen_cache_operation(ctx, rt, rs, s);
+ }
+ break;
+ }
+ break;
+ case NM_P_LS_WM:
+ case NM_P_LS_UAWM:
+ {
+ int32_t offset = sextract32(ctx->opcode, 15, 1) << 8 |
+ extract32(ctx->opcode, 0, 8);
+ int count = extract32(ctx->opcode, 12, 3);
+ int counter = 0;
+ TCGv va = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+ TCGMemOp memop = ((ctx->opcode >> 8) & 0x07) == NM_P_LS_UAWM ?
+ MO_UNALN : 0;
+
+ count = (count == 0) ? 8 : count;
+ while (counter != count) {
+ int this_rt = ((rt + counter) & 0x1f) | (rt & 0x10);
+ int32_t this_offset = offset + (counter << 2);
+
+ gen_base_offset_addr(ctx, va, rs, this_offset);
+
+ switch (extract32(ctx->opcode, 11, 1)) {
+ case NM_LWM:
+ tcg_gen_qemu_ld_tl(t1, va, ctx->mem_idx,
+ memop | MO_TESL);
+ gen_store_gpr(t1, this_rt);
+ if ((this_rt == rs) &&
+ (counter != (count - 1))) {
+ /* UNPREDICTABLE */
+ }
+ break;
+ case NM_SWM:
+ this_rt = (rt == 0) ? 0 : this_rt;
+ gen_load_gpr(t1, this_rt);
+ tcg_gen_qemu_st_tl(t1, va, ctx->mem_idx,
+ memop | MO_TEUL);
+ break;
+ }
+ counter++;
+ }
+ tcg_temp_free(va);
+ tcg_temp_free(t1);
+ }
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ }
break;
case NM_MOVE_BALC:
break;
--
1.9.1
next prev parent reply other threads:[~2018-06-20 12:11 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-20 12:05 [Qemu-devel] [PATCH 00/35] nanoMIPS Yongbok Kim
2018-06-20 12:05 ` [Qemu-devel] [PATCH 01/35] target/mips: Raise a RI when given fs is n/a from CTC1 Yongbok Kim
2018-06-22 13:45 ` Aleksandar Markovic
2018-06-20 12:05 ` [Qemu-devel] [PATCH 02/35] target/mips: Fix microMIPS on reset Yongbok Kim
2018-06-22 13:45 ` Aleksandar Markovic
2018-06-20 12:05 ` [Qemu-devel] [PATCH 03/35] target/mips: Add nanoMIPS OPCODE table Yongbok Kim
2018-06-21 23:15 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 04/35] target/mips: Add decode_nanomips_opc() Yongbok Kim
2018-06-21 23:39 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 05/35] target/mips: Add nanoMIPS 16bit ld/st instructions Yongbok Kim
2018-06-21 23:48 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 06/35] target/mips: Add nanoMIPS pool16c instructions Yongbok Kim
2018-06-22 3:40 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 07/35] target/mips: Add nanoMIPS save and restore Yongbok Kim
2018-06-22 5:11 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 08/35] target/mips: Add nanoMIPS 32bit instructions Yongbok Kim
2018-06-24 23:32 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 09/35] target/mips: Add nanoMIPS 48bit instructions Yongbok Kim
2018-06-24 23:49 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 10/35] target/mips: Add nanoMIPS pool32f instructions Yongbok Kim
2018-06-20 12:05 ` [Qemu-devel] [PATCH 11/35] target/mips: Add nanoMIPS pool32a0 instructions Yongbok Kim
2018-06-24 23:59 ` Richard Henderson
2018-06-20 12:05 ` [Qemu-devel] [PATCH 12/35] target/mips: Add nanoMIPS pool32axf instructions Yongbok Kim
2018-06-20 12:05 ` [Qemu-devel] [PATCH 13/35] target/mips: Update gen_flt_ldst() Yongbok Kim
2018-06-22 4:13 ` Philippe Mathieu-Daudé
2018-06-22 13:46 ` Aleksandar Markovic
2018-06-20 12:05 ` [Qemu-devel] [PATCH 14/35] target/mips: Add nanoMIPS p_lsx instructions Yongbok Kim
2018-06-25 0:07 ` Richard Henderson
2018-06-20 12:06 ` [Qemu-devel] [PATCH 15/35] target/mips: Implement nanoMIPS EXTW instruction Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 16/35] target/mips: Add has_isa_mode Yongbok Kim
2018-06-20 12:06 ` Yongbok Kim [this message]
2018-06-20 12:06 ` [Qemu-devel] [PATCH 18/35] target/mips: Add nanoMIPS branch instructions Yongbok Kim
2018-06-25 0:23 ` Richard Henderson
2018-06-20 12:06 ` [Qemu-devel] [PATCH 19/35] target/mips: Implement nanoMIPS LLWP/SCWP pair Yongbok Kim
2018-06-25 0:27 ` Richard Henderson
2018-06-20 12:06 ` [Qemu-devel] [PATCH 20/35] target/mips: Fix not to update BadVAddr in Debug Mode Yongbok Kim
2018-06-22 4:15 ` Philippe Mathieu-Daudé
2018-06-20 12:06 ` [Qemu-devel] [PATCH 21/35] target/mips: Add nanoMIPS rotx instruction Yongbok Kim
2018-06-25 0:30 ` Richard Henderson
2018-06-20 12:06 ` [Qemu-devel] [PATCH 22/35] target/mips: Fix data type for offset Yongbok Kim
2018-06-22 4:16 ` Philippe Mathieu-Daudé
2018-06-22 13:47 ` Aleksandar Markovic
2018-06-20 12:06 ` [Qemu-devel] [PATCH 23/35] target/mips: Update BadInstr{P} regs on nanoMIPS Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 24/35] target/mips: Add nanoMIPS CP0_BadInstrX register Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 25/35] target/mips: Config3.ISAOnExc is read only in nanoMIPS Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 26/35] target/mips: Fix nanoMIPS exception_resume_pc Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 27/35] target/mips: Fix nanoMIPS set_hflags_for_handler Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 28/35] target/mips: Fix nanoMIPS set_pc Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 29/35] target/mips: Fix ERET/ERETNC can cause ADEL exception Yongbok Kim
2018-06-22 4:31 ` Philippe Mathieu-Daudé
2018-06-20 12:06 ` [Qemu-devel] [PATCH 30/35] hw/mips: Add basic nanoMIPS boot code Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 31/35] mips_malta: Setup GT64120 BARs in nanoMIPS bootloader Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 32/35] hw/mips: Fix semihosting argument passing for nanoMIPS bare metal Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 33/35] target/mips: Fix gdbstub to read/write 64 bit FP registers Yongbok Kim
2018-06-22 13:47 ` Aleksandar Markovic
2018-06-20 12:06 ` [Qemu-devel] [PATCH 34/35] target/mips: Disable gdbstub nanoMIPS ISA bit Yongbok Kim
2018-06-20 12:06 ` [Qemu-devel] [PATCH 35/35] target/mips: Add I7200 CPU Yongbok Kim
2018-06-22 4:26 ` [Qemu-devel] [PATCH 00/35] nanoMIPS Philippe Mathieu-Daudé
2018-06-22 14:39 ` Aleksandar Markovic
2018-06-22 15:16 ` Philippe Mathieu-Daudé
2018-06-22 15:31 ` Peter Maydell
2018-06-22 14:21 ` Aleksandar Markovic
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