* [Qemu-devel] [5788] target-ppc: convert trap instructions to TCG
@ 2008-11-24 11:28 Aurelien Jarno
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From: Aurelien Jarno @ 2008-11-24 11:28 UTC (permalink / raw)
To: qemu-devel
Revision: 5788
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5788
Author: aurel32
Date: 2008-11-24 11:28:19 +0000 (Mon, 24 Nov 2008)
Log Message:
-----------
target-ppc: convert trap instructions to TCG
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/target-ppc/helper.h
trunk/target-ppc/op.c
trunk/target-ppc/op_helper.c
trunk/target-ppc/op_helper.h
trunk/target-ppc/translate.c
Modified: trunk/target-ppc/helper.h
===================================================================
--- trunk/target-ppc/helper.h 2008-11-24 08:47:21 UTC (rev 5787)
+++ trunk/target-ppc/helper.h 2008-11-24 11:28:19 UTC (rev 5788)
@@ -2,6 +2,10 @@
DEF_HELPER_2(raise_exception_err, void, i32, i32)
DEF_HELPER_0(raise_debug, void)
+DEF_HELPER_3(tw, void, tl, tl, i32)
+#if defined(TARGET_PPC64)
+DEF_HELPER_3(td, void, tl, tl, i32)
+#endif
DEF_HELPER_2(fcmpo, i32, i64, i64)
DEF_HELPER_2(fcmpu, i32, i64, i64)
Modified: trunk/target-ppc/op.c
===================================================================
--- trunk/target-ppc/op.c 2008-11-24 08:47:21 UTC (rev 5787)
+++ trunk/target-ppc/op.c 2008-11-24 11:28:19 UTC (rev 5788)
@@ -334,21 +334,6 @@
}
#endif
-/* Trap word */
-void OPPROTO op_tw (void)
-{
- do_tw(PARAM1);
- RETURN();
-}
-
-#if defined(TARGET_PPC64)
-void OPPROTO op_td (void)
-{
- do_td(PARAM1);
- RETURN();
-}
-#endif
-
#if !defined(CONFIG_USER_ONLY)
/* tlbia */
void OPPROTO op_tlbia (void)
Modified: trunk/target-ppc/op_helper.c
===================================================================
--- trunk/target-ppc/op_helper.c 2008-11-24 08:47:21 UTC (rev 5787)
+++ trunk/target-ppc/op_helper.c 2008-11-24 11:28:19 UTC (rev 5788)
@@ -1424,25 +1424,25 @@
#endif
#endif
-void do_tw (int flags)
+void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
{
- if (!likely(!(((int32_t)T0 < (int32_t)T1 && (flags & 0x10)) ||
- ((int32_t)T0 > (int32_t)T1 && (flags & 0x08)) ||
- ((int32_t)T0 == (int32_t)T1 && (flags & 0x04)) ||
- ((uint32_t)T0 < (uint32_t)T1 && (flags & 0x02)) ||
- ((uint32_t)T0 > (uint32_t)T1 && (flags & 0x01))))) {
+ if (!likely(!(((int32_t)arg1 < (int32_t)arg2 && (flags & 0x10)) ||
+ ((int32_t)arg1 > (int32_t)arg2 && (flags & 0x08)) ||
+ ((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
+ ((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
+ ((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
}
}
#if defined(TARGET_PPC64)
-void do_td (int flags)
+void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
{
- if (!likely(!(((int64_t)T0 < (int64_t)T1 && (flags & 0x10)) ||
- ((int64_t)T0 > (int64_t)T1 && (flags & 0x08)) ||
- ((int64_t)T0 == (int64_t)T1 && (flags & 0x04)) ||
- ((uint64_t)T0 < (uint64_t)T1 && (flags & 0x02)) ||
- ((uint64_t)T0 > (uint64_t)T1 && (flags & 0x01)))))
+ if (!likely(!(((int64_t)arg1 < (int64_t)arg2 && (flags & 0x10)) ||
+ ((int64_t)arg1 > (int64_t)arg2 && (flags & 0x08)) ||
+ ((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
+ ((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
+ ((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
}
#endif
Modified: trunk/target-ppc/op_helper.h
===================================================================
--- trunk/target-ppc/op_helper.h 2008-11-24 08:47:21 UTC (rev 5787)
+++ trunk/target-ppc/op_helper.h 2008-11-24 11:28:19 UTC (rev 5788)
@@ -60,10 +60,6 @@
void ppc_store_dump_spr (int sprn, target_ulong val);
/* Misc */
-void do_tw (int flags);
-#if defined(TARGET_PPC64)
-void do_td (int flags);
-#endif
#if !defined(CONFIG_USER_ONLY)
void do_store_msr (void);
void do_rfi (void);
Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c 2008-11-24 08:47:21 UTC (rev 5787)
+++ trunk/target-ppc/translate.c 2008-11-24 11:28:19 UTC (rev 5788)
@@ -3819,42 +3819,46 @@
/* tw */
GEN_HANDLER(tw, 0x1F, 0x04, 0x00, 0x00000001, PPC_FLOW)
{
- tcg_gen_mov_tl(cpu_T[0], cpu_gpr[rA(ctx->opcode)]);
- tcg_gen_mov_tl(cpu_T[1], cpu_gpr[rB(ctx->opcode)]);
+ TCGv_i32 t0 = tcg_const_i32(TO(ctx->opcode));
/* Update the nip since this might generate a trap exception */
gen_update_nip(ctx, ctx->nip);
- gen_op_tw(TO(ctx->opcode));
+ gen_helper_tw(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], t0);
+ tcg_temp_free_i32(t0);
}
/* twi */
GEN_HANDLER(twi, 0x03, 0xFF, 0xFF, 0x00000000, PPC_FLOW)
{
- tcg_gen_mov_tl(cpu_T[0], cpu_gpr[rA(ctx->opcode)]);
- tcg_gen_movi_tl(cpu_T[1], SIMM(ctx->opcode));
+ TCGv t0 = tcg_const_tl(SIMM(ctx->opcode));
+ TCGv_i32 t1 = tcg_const_i32(TO(ctx->opcode));
/* Update the nip since this might generate a trap exception */
gen_update_nip(ctx, ctx->nip);
- gen_op_tw(TO(ctx->opcode));
+ gen_helper_tw(cpu_gpr[rA(ctx->opcode)], t0, t1);
+ tcg_temp_free(t0);
+ tcg_temp_free_i32(t1);
}
#if defined(TARGET_PPC64)
/* td */
GEN_HANDLER(td, 0x1F, 0x04, 0x02, 0x00000001, PPC_64B)
{
- tcg_gen_mov_tl(cpu_T[0], cpu_gpr[rA(ctx->opcode)]);
- tcg_gen_mov_tl(cpu_T[1], cpu_gpr[rB(ctx->opcode)]);
+ TCGv_i32 t0 = tcg_const_i32(TO(ctx->opcode));
/* Update the nip since this might generate a trap exception */
gen_update_nip(ctx, ctx->nip);
- gen_op_td(TO(ctx->opcode));
+ gen_helper_td(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], t0);
+ tcg_temp_free_i32(t0);
}
/* tdi */
GEN_HANDLER(tdi, 0x02, 0xFF, 0xFF, 0x00000000, PPC_64B)
{
- tcg_gen_mov_tl(cpu_T[0], cpu_gpr[rA(ctx->opcode)]);
- tcg_gen_movi_tl(cpu_T[1], SIMM(ctx->opcode));
+ TCGv t0 = tcg_const_tl(SIMM(ctx->opcode));
+ TCGv_i32 t1 = tcg_const_i32(TO(ctx->opcode));
/* Update the nip since this might generate a trap exception */
gen_update_nip(ctx, ctx->nip);
- gen_op_td(TO(ctx->opcode));
+ gen_helper_td(cpu_gpr[rA(ctx->opcode)], t0, t1);
+ tcg_temp_free(t0);
+ tcg_temp_free_i32(t1);
}
#endif
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2008-11-24 11:28 [Qemu-devel] [5788] target-ppc: convert trap instructions to TCG Aurelien Jarno
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