diff options
Diffstat (limited to 'target-sh4/translate.c')
| -rw-r--r-- | target-sh4/translate.c | 68 |
1 files changed, 53 insertions, 15 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c index 76fbe8cfbb..bf82542c61 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -283,6 +283,40 @@ static void gen_delayed_conditional_jump(DisasContext * ctx) gen_jump(ctx); } +static inline void gen_set_t(void) +{ + tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T); +} + +static inline void gen_clr_t(void) +{ + tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); +} + +static inline void gen_cmp(int cond, TCGv t0, TCGv t1) +{ + int label1 = gen_new_label(); + int label2 = gen_new_label(); + tcg_gen_brcond_i32(cond, t1, t0, label1); + gen_clr_t(); + tcg_gen_br(label2); + gen_set_label(label1); + gen_set_t(); + gen_set_label(label2); +} + +static inline void gen_cmp_imm(int cond, TCGv t0, int32_t imm) +{ + int label1 = gen_new_label(); + int label2 = gen_new_label(); + tcg_gen_brcondi_i32(cond, t0, imm, label1); + gen_clr_t(); + tcg_gen_br(label2); + gen_set_label(label1); + gen_set_t(); + gen_set_label(label2); +} + #define B3_0 (ctx->opcode & 0xf) #define B6_4 ((ctx->opcode >> 4) & 0x7) #define B7_4 ((ctx->opcode >> 4) & 0xf) @@ -331,7 +365,7 @@ void _decode_opc(DisasContext * ctx) tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_S); return; case 0x0008: /* clrt */ - tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T); + gen_clr_t(); return; case 0x0038: /* ldtlb */ #if defined(CONFIG_USER_ONLY) @@ -349,7 +383,7 @@ void _decode_opc(DisasContext * ctx) tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_S); return; case 0x0018: /* sett */ - tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T); + gen_set_t(); return; case 0xfbfd: /* frchg */ gen_op_frchg(); @@ -582,27 +616,27 @@ void _decode_opc(DisasContext * ctx) case 0x3000: /* cmp/eq Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_cmp_eq_T0_T1(); + gen_cmp(TCG_COND_EQ, cpu_T[0], cpu_T[1]); return; case 0x3003: /* cmp/ge Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_cmp_ge_T0_T1(); + gen_cmp(TCG_COND_GE, cpu_T[0], cpu_T[1]); return; case 0x3007: /* cmp/gt Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_cmp_gt_T0_T1(); + gen_cmp(TCG_COND_GT, cpu_T[0], cpu_T[1]); return; case 0x3006: /* cmp/hi Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_cmp_hi_T0_T1(); + gen_cmp(TCG_COND_GTU, cpu_T[0], cpu_T[1]); return; case 0x3002: /* cmp/hs Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_cmp_hs_T0_T1(); + gen_cmp(TCG_COND_GEU, cpu_T[0], cpu_T[1]); return; case 0x200c: /* cmp/str Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); @@ -737,7 +771,8 @@ void _decode_opc(DisasContext * ctx) case 0x2008: /* tst Rm,Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B7_4)]); tcg_gen_mov_i32(cpu_T[1], cpu_gregs[REG(B11_8)]); - gen_op_tst_T0_T1(); + tcg_gen_and_i32(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_cmp_imm(TCG_COND_EQ, cpu_T[0], 0); return; case 0x200a: /* xor Rm,Rn */ tcg_gen_xor_i32(cpu_gregs[REG(B11_8)], cpu_gregs[REG(B11_8)], cpu_gregs[REG(B7_4)]); @@ -911,7 +946,7 @@ void _decode_opc(DisasContext * ctx) return; case 0x8800: /* cmp/eq #imm,R0 */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(0)]); - gen_op_cmp_eq_imm_T0(B7_0s); + gen_cmp_imm(TCG_COND_EQ, cpu_T[0], B7_0s); return; case 0xc400: /* mov.b @(disp,GBR),R0 */ gen_op_stc_gbr_T0(); @@ -997,13 +1032,15 @@ void _decode_opc(DisasContext * ctx) ctx->bstate = BS_BRANCH; return; case 0xc800: /* tst #imm,R0 */ - gen_op_tst_imm_rN(B7_0, REG(0)); + tcg_gen_andi_i32(cpu_T[0], cpu_gregs[REG(0)], B7_0); + gen_cmp_imm(TCG_COND_EQ, cpu_T[0], 0); return; case 0xcc00: /* tst.b #imm,@(R0,GBR) */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(0)]); tcg_gen_add_i32(cpu_T[0], cpu_T[0], cpu_gbr); gen_op_ldub_T0_T0(ctx); - gen_op_tst_imm_T0(B7_0); + tcg_gen_andi_i32(cpu_T[0], cpu_T[0], B7_0); + gen_cmp_imm(TCG_COND_EQ, cpu_T[0], 0); return; case 0xca00: /* xor #imm,R0 */ tcg_gen_xori_i32(cpu_gregs[REG(0)], cpu_gregs[REG(0)], B7_0); @@ -1058,14 +1095,15 @@ void _decode_opc(DisasContext * ctx) return; case 0x4015: /* cmp/pl Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B11_8)]); - gen_op_cmp_pl_T0(); + gen_cmp_imm(TCG_COND_GT, cpu_T[0], 0); return; case 0x4011: /* cmp/pz Rn */ tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B11_8)]); - gen_op_cmp_pz_T0(); + gen_cmp_imm(TCG_COND_GE, cpu_T[0], 0); return; case 0x4010: /* dt Rn */ - gen_op_dt_rN(REG(B11_8)); + tcg_gen_subi_i32(cpu_gregs[REG(B11_8)], cpu_gregs[REG(B11_8)], 1); + gen_cmp_imm(TCG_COND_EQ, cpu_gregs[REG(B11_8)], 0); return; case 0x402b: /* jmp @Rn */ CHECK_NOT_DELAY_SLOT tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B11_8)]); @@ -1187,7 +1225,7 @@ void _decode_opc(DisasContext * ctx) tcg_gen_mov_i32(cpu_T[0], cpu_gregs[REG(B11_8)]); tcg_gen_mov_i32(cpu_T[1], cpu_T[0]); gen_op_ldub_T0_T0(ctx); - gen_op_cmp_eq_imm_T0(0); + gen_cmp_imm(TCG_COND_EQ, cpu_T[0], 0); tcg_gen_ori_i32(cpu_T[0], cpu_T[0], 0x80); gen_op_stb_T0_T1(ctx); return; |