diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 106 |
1 files changed, 56 insertions, 50 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 00122f197b..f637d2b3a4 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -2771,6 +2771,60 @@ fail: tcg_temp_free(t1); } +static void gen_bshfl (DisasContext *ctx, uint32_t op2, int rt, int rd) +{ + TCGv t0 = tcg_temp_new(TCG_TYPE_TL); + TCGv t1 = tcg_temp_new(TCG_TYPE_TL); + + gen_load_gpr(t1, rt); + switch (op2) { + case OPC_WSBH: + tcg_gen_shri_tl(t0, t1, 8); + tcg_gen_andi_tl(t0, t0, 0x00FF00FF); + tcg_gen_shli_tl(t1, t1, 8); + tcg_gen_andi_tl(t1, t1, ~0x00FF00FF); + tcg_gen_or_tl(t0, t0, t1); + tcg_gen_ext32s_tl(t0, t0); + break; + case OPC_SEB: + tcg_gen_ext8s_tl(t0, t1); + break; + case OPC_SEH: + tcg_gen_ext16s_tl(t0, t1); + break; +#if defined(TARGET_MIPS64) + case OPC_DSBH: + gen_load_gpr(t1, rt); + tcg_gen_shri_tl(t0, t1, 8); + tcg_gen_andi_tl(t0, t0, 0x00FF00FF00FF00FFULL); + tcg_gen_shli_tl(t1, t1, 8); + tcg_gen_andi_tl(t1, t1, ~0x00FF00FF00FF00FFULL); + tcg_gen_or_tl(t0, t0, t1); + break; + case OPC_DSHD: + gen_load_gpr(t1, rt); + tcg_gen_shri_tl(t0, t1, 16); + tcg_gen_andi_tl(t0, t0, 0x0000FFFF0000FFFFULL); + tcg_gen_shli_tl(t1, t1, 16); + tcg_gen_andi_tl(t1, t1, ~0x0000FFFF0000FFFFULL); + tcg_gen_or_tl(t1, t0, t1); + tcg_gen_shri_tl(t0, t1, 32); + tcg_gen_shli_tl(t1, t1, 32); + tcg_gen_or_tl(t0, t0, t1); + break; +#endif + default: + MIPS_INVAL("bsfhl"); + generate_exception(ctx, EXCP_RI); + tcg_temp_free(t0); + tcg_temp_free(t1); + return; + } + gen_store_gpr(t0, rd); + tcg_temp_free(t0); + tcg_temp_free(t1); +} + #ifndef CONFIG_USER_ONLY /* CP0 (MMU and control) */ static inline void gen_mfc0_load32 (TCGv t, target_ulong off) @@ -7953,34 +8007,7 @@ static void decode_opc (CPUState *env, DisasContext *ctx) case OPC_BSHFL: check_insn(env, ctx, ISA_MIPS32R2); op2 = MASK_BSHFL(ctx->opcode); - { - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL); - TCGv t1 = tcg_temp_local_new(TCG_TYPE_TL); - - switch (op2) { - case OPC_WSBH: - gen_load_gpr(t1, rt); - tcg_gen_helper_1_1(do_wsbh, t0, t1); - gen_store_gpr(t0, rd); - break; - case OPC_SEB: - gen_load_gpr(t1, rt); - tcg_gen_ext8s_tl(t0, t1); - gen_store_gpr(t0, rd); - break; - case OPC_SEH: - gen_load_gpr(t1, rt); - tcg_gen_ext16s_tl(t0, t1); - gen_store_gpr(t0, rd); - break; - default: /* Invalid */ - MIPS_INVAL("bshfl"); - generate_exception(ctx, EXCP_RI); - break; - } - tcg_temp_free(t0); - tcg_temp_free(t1); - } + gen_bshfl(ctx, op2, rt, rd); break; case OPC_RDHWR: check_insn(env, ctx, ISA_MIPS32R2); @@ -8056,28 +8083,7 @@ static void decode_opc (CPUState *env, DisasContext *ctx) check_insn(env, ctx, ISA_MIPS64R2); check_mips_64(ctx); op2 = MASK_DBSHFL(ctx->opcode); - { - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL); - TCGv t1 = tcg_temp_local_new(TCG_TYPE_TL); - - switch (op2) { - case OPC_DSBH: - gen_load_gpr(t1, rt); - tcg_gen_helper_1_1(do_dsbh, t0, t1); - break; - case OPC_DSHD: - gen_load_gpr(t1, rt); - tcg_gen_helper_1_1(do_dshd, t0, t1); - break; - default: /* Invalid */ - MIPS_INVAL("dbshfl"); - generate_exception(ctx, EXCP_RI); - break; - } - gen_store_gpr(t0, rd); - tcg_temp_free(t0); - tcg_temp_free(t1); - } + gen_bshfl(ctx, op2, rt, rd); break; #endif default: /* Invalid */ |