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target-ppc: convert trap instructions to TCG 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5788 c046a42c-6fe2-441c-8c8c-71466251a162
master
aurel32 2008-11-24 11:28:19 +00:00
parent fe1e5c53fd
commit cab3bee2d6
5 changed files with 32 additions and 43 deletions
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4
target-ppc/helper.h
View File

@ -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)

15
target-ppc/op.c
View File

@ -334,21 +334,6 @@ void OPPROTO op_store_excp_vector (void)
}
#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)

24
target-ppc/op_helper.c
View File

@ -1424,25 +1424,25 @@ void do_hrfid (void)
#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

4
target-ppc/op_helper.h
View File

@ -60,10 +60,6 @@ target_ulong ppc_load_dump_spr (int sprn);
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);

28
target-ppc/translate.c
View File

@ -3819,42 +3819,46 @@ GEN_HANDLER(sc, 0x11, 0xFF, 0xFF, 0x03FFF01D, PPC_FLOW)
/* 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