diff options
Diffstat (limited to 'target-ppc/translate.c')
| -rw-r--r-- | target-ppc/translate.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 96b3699..c5a9735 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -62,6 +62,7 @@ static TCGv cpu_crf[8]; static TCGv cpu_nip; static TCGv cpu_ctr; static TCGv cpu_lr; +static TCGv cpu_xer; /* dyngen register indexes */ static TCGv cpu_T[3]; @@ -175,6 +176,9 @@ void ppc_translate_init(void) cpu_lr = tcg_global_mem_new(TCG_TYPE_TL, TCG_AREG0, offsetof(CPUState, lr), "lr"); + cpu_xer = tcg_global_mem_new(TCG_TYPE_I32, TCG_AREG0, + offsetof(CPUState, xer), "xer"); + /* register helpers */ #undef DEF_HELPER #define DEF_HELPER(ret, name, params) tcg_register_helper(name, #name); @@ -1057,7 +1061,7 @@ GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) #endif gen_op_check_addc(); } else { - gen_op_clear_xer_ca(); + tcg_gen_andi_i32(cpu_xer, cpu_xer, ~(1 << XER_CA)); } tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_T[0]); } @@ -1077,7 +1081,7 @@ GEN_HANDLER2(addic_, "addic.", 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) #endif gen_op_check_addc(); } else { - gen_op_clear_xer_ca(); + tcg_gen_andi_i32(cpu_xer, cpu_xer, ~(1 << XER_CA)); } tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_T[0]); gen_set_Rc0(ctx); @@ -2852,7 +2856,7 @@ GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_STRING) if (ra == 0) { ra = rb; } - gen_op_load_xer_bc(); + tcg_gen_andi_tl(cpu_T[1], cpu_xer, 0x7F); op_ldstsx(lswx, rD(ctx->opcode), ra, rb); } @@ -2876,7 +2880,7 @@ GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_STRING) /* NIP cannot be restored if the memory exception comes from an helper */ gen_update_nip(ctx, ctx->nip - 4); gen_addr_reg_index(cpu_T[0], ctx); - gen_op_load_xer_bc(); + tcg_gen_andi_tl(cpu_T[1], cpu_xer, 0x7F); op_ldsts(stsw, rS(ctx->opcode)); } @@ -3509,10 +3513,9 @@ GEN_HANDLER(tdi, 0x02, 0xFF, 0xFF, 0x00000000, PPC_64B) /* mcrxr */ GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC) { - gen_op_load_xer_cr(); - tcg_gen_andi_i32(cpu_crf[crfD(ctx->opcode)], cpu_T[0], 0xf); - gen_op_clear_xer_ov(); - gen_op_clear_xer_ca(); + tcg_gen_trunc_tl_i32(cpu_crf[crfD(ctx->opcode)], cpu_xer); + tcg_gen_shri_i32(cpu_crf[crfD(ctx->opcode)], cpu_crf[crfD(ctx->opcode)], XER_CA); + tcg_gen_andi_i32(cpu_xer, cpu_xer, ~(1 << XER_SO | 1 << XER_OV | 1 << XER_CA)); } /* mfcr */ @@ -4310,10 +4313,12 @@ GEN_HANDLER(lscbx, 0x1F, 0x15, 0x08, 0x00000000, PPC_POWER_BR) } /* NIP cannot be restored if the memory exception comes from an helper */ gen_update_nip(ctx, ctx->nip - 4); - gen_op_load_xer_bc(); - gen_op_load_xer_cmp(); + tcg_gen_andi_tl(cpu_T[1], cpu_xer, 0x7F); + tcg_gen_shri_tl(cpu_T[2], cpu_xer, XER_CMP); + tcg_gen_andi_tl(cpu_T[2], cpu_T[2], 0xFF); op_POWER_lscbx(rD(ctx->opcode), ra, rb); - gen_op_store_xer_bc(); + tcg_gen_andi_tl(cpu_xer, cpu_xer, ~0x7F); + tcg_gen_or_tl(cpu_xer, cpu_xer, cpu_T[0]); if (unlikely(Rc(ctx->opcode) != 0)) gen_set_Rc0(ctx); } @@ -5500,7 +5505,8 @@ GEN_HANDLER(dlmzb, 0x1F, 0x0E, 0x02, 0x00000000, PPC_440_SPEC) tcg_gen_mov_tl(cpu_T[1], cpu_gpr[rB(ctx->opcode)]); gen_op_440_dlmzb(); tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], cpu_T[0]); - gen_op_store_xer_bc(); + tcg_gen_andi_tl(cpu_xer, cpu_xer, ~0x7F); + tcg_gen_or_tl(cpu_xer, cpu_xer, cpu_T[0]); if (Rc(ctx->opcode)) { gen_op_440_dlmzb_update_Rc(); tcg_gen_andi_i32(cpu_crf[0], cpu_T[0], 0xf); @@ -6391,7 +6397,7 @@ void cpu_dump_state (CPUState *env, FILE *f, int i; cpu_fprintf(f, "NIP " ADDRX " LR " ADDRX " CTR " ADDRX " XER %08x\n", - env->nip, env->lr, env->ctr, hreg_load_xer(env)); + env->nip, env->lr, env->ctr, env->xer); cpu_fprintf(f, "MSR " ADDRX " HID0 " ADDRX " HF " ADDRX " idx %d\n", env->msr, env->spr[SPR_HID0], env->hflags, env->mmu_idx); #if !defined(NO_TIMER_DUMP) |