diff options
| -rw-r--r-- | target-ppc/translate.c | 63 |
1 files changed, 19 insertions, 44 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index abc75e2..05f93f6 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1121,50 +1121,6 @@ static void gen_mulldo(DisasContext *ctx) } #endif -/* neg neg. nego nego. */ -static inline void gen_op_arith_neg(DisasContext *ctx, TCGv ret, TCGv arg1, - int ov_check) -{ - int l1 = gen_new_label(); - int l2 = gen_new_label(); - TCGv t0 = tcg_temp_local_new(); -#if defined(TARGET_PPC64) - if (ctx->sf_mode) { - tcg_gen_mov_tl(t0, arg1); - tcg_gen_brcondi_tl(TCG_COND_EQ, t0, INT64_MIN, l1); - } else -#endif - { - tcg_gen_ext32s_tl(t0, arg1); - tcg_gen_brcondi_tl(TCG_COND_EQ, t0, INT32_MIN, l1); - } - tcg_gen_neg_tl(ret, arg1); - if (ov_check) { - tcg_gen_movi_tl(cpu_ov, 0); - } - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_mov_tl(ret, t0); - if (ov_check) { - tcg_gen_movi_tl(cpu_ov, 1); - tcg_gen_movi_tl(cpu_so, 1); - } - gen_set_label(l2); - tcg_temp_free(t0); - if (unlikely(Rc(ctx->opcode) != 0)) - gen_set_Rc0(ctx, ret); -} - -static void gen_neg(DisasContext *ctx) -{ - gen_op_arith_neg(ctx, cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 0); -} - -static void gen_nego(DisasContext *ctx) -{ - gen_op_arith_neg(ctx, cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 1); -} - /* Common subf function */ static inline void gen_op_arith_subf(DisasContext *ctx, TCGv ret, TCGv arg1, TCGv arg2, bool add_ca, bool compute_ca, @@ -1254,6 +1210,25 @@ static void gen_subfic(DisasContext *ctx) tcg_temp_free(c); } +/* neg neg. nego nego. */ +static inline void gen_op_arith_neg(DisasContext *ctx, bool compute_ov) +{ + TCGv zero = tcg_const_tl(0); + gen_op_arith_subf(ctx, cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], + zero, 0, 0, compute_ov, Rc(ctx->opcode)); + tcg_temp_free(zero); +} + +static void gen_neg(DisasContext *ctx) +{ + gen_op_arith_neg(ctx, 0); +} + +static void gen_nego(DisasContext *ctx) +{ + gen_op_arith_neg(ctx, 1); +} + /*** Integer logical ***/ #define GEN_LOGICAL2(name, tcg_op, opc, type) \ static void glue(gen_, name)(DisasContext *ctx) \ |