diff options
Diffstat (limited to 'target-alpha/translate.c')
| -rw-r--r-- | target-alpha/translate.c | 57 |
1 files changed, 25 insertions, 32 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 1388ce645d..029bcd998a 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -567,46 +567,41 @@ static inline void gen_zap(int ra, int rb, int rc, int islit, uint8_t lit) /* EXTWH, EXTWH, EXTLH, EXTQH */ -static inline void gen_ext_h(void(*tcg_gen_ext_i64)(TCGv t0, TCGv t1), - int ra, int rb, int rc, int islit, uint8_t lit) +static inline void gen_ext_h(int ra, int rb, int rc, int islit, + uint8_t lit, uint8_t byte_mask) { if (unlikely(rc == 31)) return; - - if (ra != 31) { + else if (unlikely(ra == 31)) + tcg_gen_movi_i64(cpu_ir[rc], 0); + else { if (islit) { - if (lit != 0) - tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], 64 - ((lit & 7) * 8)); - else - tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[ra]); + lit = (64 - (lit & 7) * 8) & 0x3f; + tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit); } else { - TCGv tmp1; - tmp1 = tcg_temp_new(); - + 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); } - if (tcg_gen_ext_i64) - tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]); - } else - tcg_gen_movi_i64(cpu_ir[rc], 0); + gen_zapnoti(rc, rc, byte_mask); + } } /* EXTBL, EXTWL, EXTWL, EXTLL, EXTQL */ -static inline void gen_ext_l(void(*tcg_gen_ext_i64)(TCGv t0, TCGv t1), - int ra, int rb, int rc, int islit, uint8_t lit) +static inline void gen_ext_l(int ra, int rb, int rc, int islit, + uint8_t lit, uint8_t byte_mask) { if (unlikely(rc == 31)) return; - - if (ra != 31) { + else if (unlikely(ra == 31)) + tcg_gen_movi_i64(cpu_ir[rc], 0); + else { if (islit) { - tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8); + 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); @@ -614,10 +609,8 @@ static inline void gen_ext_l(void(*tcg_gen_ext_i64)(TCGv t0, TCGv t1), tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], tmp); tcg_temp_free(tmp); } - if (tcg_gen_ext_i64) - tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]); - } else - tcg_gen_movi_i64(cpu_ir[rc], 0); + gen_zapnoti(rc, rc, byte_mask); + } } /* Code to call arith3 helpers */ @@ -1276,7 +1269,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x06: /* EXTBL */ - gen_ext_l(&tcg_gen_ext8u_i64, ra, rb, rc, islit, lit); + gen_ext_l(ra, rb, rc, islit, lit, 0x01); break; case 0x0B: /* INSBL */ @@ -1288,7 +1281,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x16: /* EXTWL */ - gen_ext_l(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit); + gen_ext_l(ra, rb, rc, islit, lit, 0x03); break; case 0x1B: /* INSWL */ @@ -1300,7 +1293,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x26: /* EXTLL */ - gen_ext_l(&tcg_gen_ext32u_i64, ra, rb, rc, islit, lit); + gen_ext_l(ra, rb, rc, islit, lit, 0x0f); break; case 0x2B: /* INSLL */ @@ -1336,7 +1329,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x36: /* EXTQL */ - gen_ext_l(NULL, ra, rb, rc, islit, lit); + gen_ext_l(ra, rb, rc, islit, lit, 0xff); break; case 0x39: /* SLL */ @@ -1384,7 +1377,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x5A: /* EXTWH */ - gen_ext_h(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit); + gen_ext_h(ra, rb, rc, islit, lit, 0x03); break; case 0x62: /* MSKLH */ @@ -1396,7 +1389,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x6A: /* EXTLH */ - gen_ext_h(&tcg_gen_ext32u_i64, ra, rb, rc, islit, lit); + gen_ext_h(ra, rb, rc, islit, lit, 0x0f); break; case 0x72: /* MSKQH */ @@ -1408,7 +1401,7 @@ static inline int translate_one(DisasContext *ctx, uint32_t insn) break; case 0x7A: /* EXTQH */ - gen_ext_h(NULL, ra, rb, rc, islit, lit); + gen_ext_h(ra, rb, rc, islit, lit, 0xff); break; default: goto invalid_opc; |