diff options
author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-21 10:12:54 +0000 |
---|---|---|
committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-21 10:12:54 +0000 |
commit | 0211e5aff995ee55722148923a7fc317796e4114 (patch) | |
tree | 0957c189e7296c7b40fbc3a472fa16ae3d54d5bd /target-i386/translate.c | |
parent | 30898801ad8c70708ead392b243ca8bcd28ca722 (diff) | |
download | hqemu-0211e5aff995ee55722148923a7fc317796e4114.zip hqemu-0211e5aff995ee55722148923a7fc317796e4114.tar.gz |
converted MUL/IMUL to TCG
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4508 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386/translate.c')
-rw-r--r-- | target-i386/translate.c | 140 |
1 files changed, 129 insertions, 11 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 0755987..c73fac9 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -3799,21 +3799,64 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) case 4: /* mul */ switch(ot) { case OT_BYTE: - gen_op_mulb_AL_T0(); + gen_op_mov_TN_reg(OT_BYTE, 1, R_EAX); + tcg_gen_ext8u_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext8u_tl(cpu_T[1], cpu_T[1]); + /* XXX: use 32 bit mul which could be faster */ + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_WORD, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_andi_tl(cpu_cc_src, cpu_T[0], 0xff00); s->cc_op = CC_OP_MULB; break; case OT_WORD: - gen_op_mulw_AX_T0(); + gen_op_mov_TN_reg(OT_WORD, 1, R_EAX); + tcg_gen_ext16u_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext16u_tl(cpu_T[1], cpu_T[1]); + /* XXX: use 32 bit mul which could be faster */ + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_WORD, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 16); + gen_op_mov_reg_T0(OT_WORD, R_EDX); + tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]); s->cc_op = CC_OP_MULW; break; default: case OT_LONG: - gen_op_mull_EAX_T0(); +#ifdef TARGET_X86_64 + gen_op_mov_TN_reg(OT_LONG, 1, R_EAX); + tcg_gen_ext32u_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext32u_tl(cpu_T[1], cpu_T[1]); + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_LONG, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 32); + gen_op_mov_reg_T0(OT_LONG, R_EDX); + tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]); +#else + { + TCGv t0, t1; + t0 = tcg_temp_new(TCG_TYPE_I64); + t1 = tcg_temp_new(TCG_TYPE_I64); + gen_op_mov_TN_reg(OT_LONG, 1, R_EAX); + tcg_gen_extu_i32_i64(t0, cpu_T[0]); + tcg_gen_extu_i32_i64(t1, cpu_T[1]); + tcg_gen_mul_i64(t0, t0, t1); + tcg_gen_trunc_i64_i32(cpu_T[0], t0); + gen_op_mov_reg_T0(OT_LONG, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_shri_i64(t0, t0, 32); + tcg_gen_trunc_i64_i32(cpu_T[0], t0); + gen_op_mov_reg_T0(OT_LONG, R_EDX); + tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]); + } +#endif s->cc_op = CC_OP_MULL; break; #ifdef TARGET_X86_64 case OT_QUAD: - gen_op_mulq_EAX_T0(); + tcg_gen_helper_0_1(helper_mulq_EAX_T0, cpu_T[0]); s->cc_op = CC_OP_MULQ; break; #endif @@ -3822,21 +3865,68 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) case 5: /* imul */ switch(ot) { case OT_BYTE: - gen_op_imulb_AL_T0(); + gen_op_mov_TN_reg(OT_BYTE, 1, R_EAX); + tcg_gen_ext8s_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext8s_tl(cpu_T[1], cpu_T[1]); + /* XXX: use 32 bit mul which could be faster */ + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_WORD, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_ext8s_tl(cpu_tmp0, cpu_T[0]); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); s->cc_op = CC_OP_MULB; break; case OT_WORD: - gen_op_imulw_AX_T0(); + gen_op_mov_TN_reg(OT_WORD, 1, R_EAX); + tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext16s_tl(cpu_T[1], cpu_T[1]); + /* XXX: use 32 bit mul which could be faster */ + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_WORD, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_ext16s_tl(cpu_tmp0, cpu_T[0]); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); + tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 16); + gen_op_mov_reg_T0(OT_WORD, R_EDX); s->cc_op = CC_OP_MULW; break; default: case OT_LONG: - gen_op_imull_EAX_T0(); +#ifdef TARGET_X86_64 + gen_op_mov_TN_reg(OT_LONG, 1, R_EAX); + tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext32s_tl(cpu_T[1], cpu_T[1]); + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + gen_op_mov_reg_T0(OT_LONG, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_ext32s_tl(cpu_tmp0, cpu_T[0]); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); + tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 32); + gen_op_mov_reg_T0(OT_LONG, R_EDX); +#else + { + TCGv t0, t1; + t0 = tcg_temp_new(TCG_TYPE_I64); + t1 = tcg_temp_new(TCG_TYPE_I64); + gen_op_mov_TN_reg(OT_LONG, 1, R_EAX); + tcg_gen_ext_i32_i64(t0, cpu_T[0]); + tcg_gen_ext_i32_i64(t1, cpu_T[1]); + tcg_gen_mul_i64(t0, t0, t1); + tcg_gen_trunc_i64_i32(cpu_T[0], t0); + gen_op_mov_reg_T0(OT_LONG, R_EAX); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_sari_tl(cpu_tmp0, cpu_T[0], 31); + tcg_gen_shri_i64(t0, t0, 32); + tcg_gen_trunc_i64_i32(cpu_T[0], t0); + gen_op_mov_reg_T0(OT_LONG, R_EDX); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); + } +#endif s->cc_op = CC_OP_MULL; break; #ifdef TARGET_X86_64 case OT_QUAD: - gen_op_imulq_EAX_T0(); + tcg_gen_helper_0_1(helper_imulq_EAX_T0, cpu_T[0]); s->cc_op = CC_OP_MULQ; break; #endif @@ -4104,13 +4194,41 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) #ifdef TARGET_X86_64 if (ot == OT_QUAD) { - gen_op_imulq_T0_T1(); + tcg_gen_helper_1_2(helper_imulq_T0_T1, cpu_T[0], cpu_T[0], cpu_T[1]); } else #endif if (ot == OT_LONG) { - gen_op_imull_T0_T1(); +#ifdef TARGET_X86_64 + tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext32s_tl(cpu_T[1], cpu_T[1]); + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_ext32s_tl(cpu_tmp0, cpu_T[0]); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); +#else + { + TCGv t0, t1; + t0 = tcg_temp_new(TCG_TYPE_I64); + t1 = tcg_temp_new(TCG_TYPE_I64); + tcg_gen_ext_i32_i64(t0, cpu_T[0]); + tcg_gen_ext_i32_i64(t1, cpu_T[1]); + tcg_gen_mul_i64(t0, t0, t1); + tcg_gen_trunc_i64_i32(cpu_T[0], t0); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_sari_tl(cpu_tmp0, cpu_T[0], 31); + tcg_gen_shri_i64(t0, t0, 32); + tcg_gen_trunc_i64_i32(cpu_T[1], t0); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[1], cpu_tmp0); + } +#endif } else { - gen_op_imulw_T0_T1(); + tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]); + tcg_gen_ext16s_tl(cpu_T[1], cpu_T[1]); + /* XXX: use 32 bit mul which could be faster */ + tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]); + tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]); + tcg_gen_ext16s_tl(cpu_tmp0, cpu_T[0]); + tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0); } gen_op_mov_reg_T0(ot, reg); s->cc_op = CC_OP_MULB + ot; |