diff options
| -rw-r--r-- | target-alpha/translate.c | 100 |
1 files changed, 24 insertions, 76 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 59ae23d..c57e606 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -836,79 +836,22 @@ static inline void glue(gen_f, name)(DisasContext *ctx, \ IEEE_INTCVT(cvtqs) IEEE_INTCVT(cvtqt) -static void gen_cpys_internal(int ra, int rb, int rc, int inv_a, uint64_t mask) +static void gen_cpy_mask(TCGv vc, TCGv va, TCGv vb, bool inv_a, uint64_t mask) { - TCGv va, vb, vmask; - int za = 0, zb = 0; + TCGv vmask = tcg_const_i64(mask); + TCGv tmp = tcg_temp_new_i64(); - if (unlikely(rc == 31)) { - return; - } - - vmask = tcg_const_i64(mask); - - TCGV_UNUSED_I64(va); - if (ra == 31) { - if (inv_a) { - va = vmask; - } else { - za = 1; - } + if (inv_a) { + tcg_gen_andc_i64(tmp, vmask, va); } else { - va = tcg_temp_new_i64(); - tcg_gen_mov_i64(va, cpu_fir[ra]); - if (inv_a) { - tcg_gen_andc_i64(va, vmask, va); - } else { - tcg_gen_and_i64(va, va, vmask); - } + tcg_gen_and_i64(tmp, va, vmask); } - TCGV_UNUSED_I64(vb); - if (rb == 31) { - zb = 1; - } else { - vb = tcg_temp_new_i64(); - tcg_gen_andc_i64(vb, cpu_fir[rb], vmask); - } - - switch (za << 1 | zb) { - case 0 | 0: - tcg_gen_or_i64(cpu_fir[rc], va, vb); - break; - case 0 | 1: - tcg_gen_mov_i64(cpu_fir[rc], va); - break; - case 2 | 0: - tcg_gen_mov_i64(cpu_fir[rc], vb); - break; - case 2 | 1: - tcg_gen_movi_i64(cpu_fir[rc], 0); - break; - } + tcg_gen_andc_i64(vc, vb, vmask); + tcg_gen_or_i64(vc, vc, tmp); tcg_temp_free(vmask); - if (ra != 31) { - tcg_temp_free(va); - } - if (rb != 31) { - tcg_temp_free(vb); - } -} - -static inline void gen_fcpys(int ra, int rb, int rc) -{ - gen_cpys_internal(ra, rb, rc, 0, 0x8000000000000000ULL); -} - -static inline void gen_fcpysn(int ra, int rb, int rc) -{ - gen_cpys_internal(ra, rb, rc, 1, 0x8000000000000000ULL); -} - -static inline void gen_fcpyse(int ra, int rb, int rc) -{ - gen_cpys_internal(ra, rb, rc, 0, 0xFFF0000000000000ULL); + tcg_temp_free(tmp); } static void gen_ieee_arith3(DisasContext *ctx, @@ -2238,26 +2181,31 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) /* CPYS */ if (rc == 31) { /* Special case CPYS as FNOP. */ - } else if (ra == rb) { + } else { vc = dest_fpr(ctx, rc); - /* Special case CPYS as FMOV. */ - if (ra == 31) { - tcg_gen_movi_i64(vc, 0); - } else { - va = load_fpr(ctx, ra); + va = load_fpr(ctx, ra); + if (ra == rb) { + /* Special case CPYS as FMOV. */ tcg_gen_mov_i64(vc, va); + } else { + vb = load_fpr(ctx, rb); + gen_cpy_mask(vc, va, vb, 0, 0x8000000000000000ULL); } - } else { - gen_fcpys(ra, rb, rc); } break; case 0x021: /* CPYSN */ - gen_fcpysn(ra, rb, rc); + vc = dest_fpr(ctx, rc); + vb = load_fpr(ctx, rb); + va = load_fpr(ctx, ra); + gen_cpy_mask(vc, va, vb, 1, 0x8000000000000000ULL); break; case 0x022: /* CPYSE */ - gen_fcpyse(ra, rb, rc); + vc = dest_fpr(ctx, rc); + vb = load_fpr(ctx, rb); + va = load_fpr(ctx, ra); + gen_cpy_mask(vc, va, vb, 0, 0xFFF0000000000000ULL); break; case 0x024: /* MT_FPCR */ |
