diff options
Diffstat (limited to 'target-alpha/translate.c')
| -rw-r--r-- | target-alpha/translate.c | 66 |
1 files changed, 26 insertions, 40 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 5c6db61c4a..c606183c69 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -1202,50 +1202,36 @@ static inline void gen_zap(int ra, int rb, int rc, int islit, uint8_t lit) /* EXTWH, EXTLH, EXTQH */ -static void gen_ext_h(int ra, int rb, int rc, int islit, +static void gen_ext_h(DisasContext *ctx, TCGv vc, TCGv va, int rb, bool islit, uint8_t lit, uint8_t byte_mask) { - if (unlikely(rc == 31)) { - return; - } else if (unlikely(ra == 31)) { - tcg_gen_movi_i64(cpu_ir[rc], 0); + if (islit) { + tcg_gen_shli_i64(vc, va, (64 - lit * 8) & 0x3f); } else { - if (islit) { - lit = (64 - (lit & 7) * 8) & 0x3f; - tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit); - } else { - TCGv tmp1 = tcg_temp_new(); - tcg_gen_andi_i64(tmp1, cpu_ir[rb], 7); - tcg_gen_shli_i64(tmp1, tmp1, 3); - tcg_gen_neg_i64(tmp1, tmp1); - tcg_gen_andi_i64(tmp1, tmp1, 0x3f); - tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], tmp1); - tcg_temp_free(tmp1); - } - gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask); + TCGv tmp = tcg_temp_new(); + tcg_gen_shli_i64(tmp, load_gpr(ctx, rb), 3); + tcg_gen_neg_i64(tmp, tmp); + tcg_gen_andi_i64(tmp, tmp, 0x3f); + tcg_gen_shl_i64(vc, va, tmp); + tcg_temp_free(tmp); } + gen_zapnoti(vc, vc, byte_mask); } /* EXTBL, EXTWL, EXTLL, EXTQL */ -static void gen_ext_l(int ra, int rb, int rc, int islit, +static void gen_ext_l(DisasContext *ctx, TCGv vc, TCGv va, int rb, bool islit, uint8_t lit, uint8_t byte_mask) { - if (unlikely(rc == 31)) { - return; - } else if (unlikely(ra == 31)) { - tcg_gen_movi_i64(cpu_ir[rc], 0); + if (islit) { + tcg_gen_shri_i64(vc, va, (lit & 7) * 8); } else { - if (islit) { - tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8); - } else { - TCGv tmp = tcg_temp_new(); - tcg_gen_andi_i64(tmp, cpu_ir[rb], 7); - tcg_gen_shli_i64(tmp, tmp, 3); - tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], tmp); - tcg_temp_free(tmp); - } - gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask); + TCGv tmp = tcg_temp_new(); + tcg_gen_andi_i64(tmp, load_gpr(ctx, rb), 7); + tcg_gen_shli_i64(tmp, tmp, 3); + tcg_gen_shr_i64(vc, va, tmp); + tcg_temp_free(tmp); } + gen_zapnoti(vc, vc, byte_mask); } /* INSWH, INSLH, INSQH */ @@ -2104,7 +2090,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x06: /* EXTBL */ - gen_ext_l(ra, rb, rc, islit, lit, 0x01); + gen_ext_l(ctx, vc, va, rb, islit, lit, 0x01); break; case 0x0B: /* INSBL */ @@ -2116,7 +2102,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x16: /* EXTWL */ - gen_ext_l(ra, rb, rc, islit, lit, 0x03); + gen_ext_l(ctx, vc, va, rb, islit, lit, 0x03); break; case 0x1B: /* INSWL */ @@ -2128,7 +2114,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x26: /* EXTLL */ - gen_ext_l(ra, rb, rc, islit, lit, 0x0f); + gen_ext_l(ctx, vc, va, rb, islit, lit, 0x0f); break; case 0x2B: /* INSLL */ @@ -2160,7 +2146,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x36: /* EXTQL */ - gen_ext_l(ra, rb, rc, islit, lit, 0xff); + gen_ext_l(ctx, vc, va, rb, islit, lit, 0xff); break; case 0x39: /* SLL */ @@ -2200,7 +2186,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x5A: /* EXTWH */ - gen_ext_h(ra, rb, rc, islit, lit, 0x03); + gen_ext_h(ctx, vc, va, rb, islit, lit, 0x03); break; case 0x62: /* MSKLH */ @@ -2212,7 +2198,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x6A: /* EXTLH */ - gen_ext_h(ra, rb, rc, islit, lit, 0x0f); + gen_ext_h(ctx, vc, va, rb, islit, lit, 0x0f); break; case 0x72: /* MSKQH */ @@ -2224,7 +2210,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x7A: /* EXTQH */ - gen_ext_h(ra, rb, rc, islit, lit, 0xff); + gen_ext_h(ctx, vc, va, rb, islit, lit, 0xff); break; default: goto invalid_opc; |