A new pair of braces has to be added to declare variables in the case block. The code style is also fixed according to the transalte.c itself during the code motion.
Signed-off-by: Ziqiao Kong <ziqiaok...@gmail.com> --- Sorry for the duplicate emails due to my bad network. The v7 has no difference from v6 and is sent just for clarification. Changes since v5: - None Changes since v4: - Rewrite commit message to specify the reason to add the braces. --- target/i386/tcg/translate.c | 957 ++++++++++++++++++------------------ 1 file changed, 484 insertions(+), 473 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 834186bcae..5c1b7b87c5 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -5929,503 +5929,514 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) /************************/ /* floats */ case 0xd8 ... 0xdf: - if (s->flags & (HF_EM_MASK | HF_TS_MASK)) { - /* if CR0.EM or CR0.TS are set, generate an FPU exception */ - /* XXX: what to do if illegal op ? */ - gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); - break; - } - modrm = x86_ldub_code(env, s); - mod = (modrm >> 6) & 3; - rm = modrm & 7; - op = ((b & 7) << 3) | ((modrm >> 3) & 7); - if (mod != 3) { - /* memory op */ - gen_lea_modrm(env, s, modrm); - switch(op) { - case 0x00 ... 0x07: /* fxxxs */ - case 0x10 ... 0x17: /* fixxxl */ - case 0x20 ... 0x27: /* fxxxl */ - case 0x30 ... 0x37: /* fixxx */ - { - int op1; - op1 = op & 7; - - switch(op >> 4) { - case 0: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - gen_helper_flds_FT0(cpu_env, s->tmp2_i32); - break; - case 1: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - gen_helper_fildl_FT0(cpu_env, s->tmp2_i32); - break; - case 2: - tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, - s->mem_index, MO_LEQ); - gen_helper_fldl_FT0(cpu_env, s->tmp1_i64); - break; - case 3: - default: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LESW); - gen_helper_fildl_FT0(cpu_env, s->tmp2_i32); - break; - } - - gen_helper_fp_arith_ST0_FT0(op1); - if (op1 == 3) { - /* fcomp needs pop */ - gen_helper_fpop(cpu_env); - } - } + { + if (s->flags & (HF_EM_MASK | HF_TS_MASK)) { + /* if CR0.EM or CR0.TS are set, generate an FPU exception */ + /* XXX: what to do if illegal op ? */ + gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); break; - case 0x08: /* flds */ - case 0x0a: /* fsts */ - case 0x0b: /* fstps */ - case 0x18 ... 0x1b: /* fildl, fisttpl, fistl, fistpl */ - case 0x28 ... 0x2b: /* fldl, fisttpll, fstl, fstpl */ - case 0x38 ... 0x3b: /* filds, fisttps, fists, fistps */ - switch(op & 7) { - case 0: - switch(op >> 4) { - case 0: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - gen_helper_flds_ST0(cpu_env, s->tmp2_i32); - break; - case 1: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - gen_helper_fildl_ST0(cpu_env, s->tmp2_i32); - break; - case 2: - tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, - s->mem_index, MO_LEQ); - gen_helper_fldl_ST0(cpu_env, s->tmp1_i64); - break; - case 3: - default: - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LESW); - gen_helper_fildl_ST0(cpu_env, s->tmp2_i32); - break; - } - break; - case 1: - /* XXX: the corresponding CPUID bit must be tested ! */ - switch(op >> 4) { - case 1: - gen_helper_fisttl_ST0(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - break; - case 2: - gen_helper_fisttll_ST0(s->tmp1_i64, cpu_env); - tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, - s->mem_index, MO_LEQ); - break; - case 3: - default: - gen_helper_fistt_ST0(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUW); - break; - } - gen_helper_fpop(cpu_env); - break; - default: - switch(op >> 4) { - case 0: - gen_helper_fsts_ST0(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - break; - case 1: - gen_helper_fistl_ST0(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUL); - break; - case 2: - gen_helper_fstl_ST0(s->tmp1_i64, cpu_env); - tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, - s->mem_index, MO_LEQ); - break; - case 3: - default: - gen_helper_fist_ST0(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUW); - break; - } - if ((op & 7) == 3) - gen_helper_fpop(cpu_env); - break; - } - break; - case 0x0c: /* fldenv mem */ - gen_helper_fldenv(cpu_env, s->A0, tcg_const_i32(dflag - 1)); - break; - case 0x0d: /* fldcw mem */ - tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUW); - gen_helper_fldcw(cpu_env, s->tmp2_i32); - break; - case 0x0e: /* fnstenv mem */ - gen_helper_fstenv(cpu_env, s->A0, tcg_const_i32(dflag - 1)); - break; - case 0x0f: /* fnstcw mem */ - gen_helper_fnstcw(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUW); - break; - case 0x1d: /* fldt mem */ - gen_helper_fldt_ST0(cpu_env, s->A0); - break; - case 0x1f: /* fstpt mem */ - gen_helper_fstt_ST0(cpu_env, s->A0); - gen_helper_fpop(cpu_env); - break; - case 0x2c: /* frstor mem */ - gen_helper_frstor(cpu_env, s->A0, tcg_const_i32(dflag - 1)); - break; - case 0x2e: /* fnsave mem */ - gen_helper_fsave(cpu_env, s->A0, tcg_const_i32(dflag - 1)); - break; - case 0x2f: /* fnstsw mem */ - gen_helper_fnstsw(s->tmp2_i32, cpu_env); - tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, - s->mem_index, MO_LEUW); - break; - case 0x3c: /* fbld */ - gen_helper_fbld_ST0(cpu_env, s->A0); - break; - case 0x3e: /* fbstp */ - gen_helper_fbst_ST0(cpu_env, s->A0); - gen_helper_fpop(cpu_env); - break; - case 0x3d: /* fildll */ - tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, s->mem_index, MO_LEQ); - gen_helper_fildll_ST0(cpu_env, s->tmp1_i64); - break; - case 0x3f: /* fistpll */ - gen_helper_fistll_ST0(s->tmp1_i64, cpu_env); - tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, s->mem_index, MO_LEQ); - gen_helper_fpop(cpu_env); - break; - default: - goto unknown_op; } - } else { - /* register float ops */ - opreg = rm; + modrm = x86_ldub_code(env, s); + mod = (modrm >> 6) & 3; + rm = modrm & 7; + op = ((b & 7) << 3) | ((modrm >> 3) & 7); + if (mod != 3) { + /* memory op */ + gen_lea_modrm(env, s, modrm); + switch (op) { + case 0x00 ... 0x07: /* fxxxs */ + case 0x10 ... 0x17: /* fixxxl */ + case 0x20 ... 0x27: /* fxxxl */ + case 0x30 ... 0x37: /* fixxx */ + { + int op1; + op1 = op & 7; - switch(op) { - case 0x08: /* fld sti */ - gen_helper_fpush(cpu_env); - gen_helper_fmov_ST0_STN(cpu_env, - tcg_const_i32((opreg + 1) & 7)); - break; - case 0x09: /* fxchg sti */ - case 0x29: /* fxchg4 sti, undocumented op */ - case 0x39: /* fxchg7 sti, undocumented op */ - gen_helper_fxchg_ST0_STN(cpu_env, tcg_const_i32(opreg)); - break; - case 0x0a: /* grp d9/2 */ - switch(rm) { - case 0: /* fnop */ - /* check exceptions (FreeBSD FPU probe) */ - gen_helper_fwait(cpu_env); - break; - default: - goto unknown_op; - } - break; - case 0x0c: /* grp d9/4 */ - switch(rm) { - case 0: /* fchs */ - gen_helper_fchs_ST0(cpu_env); - break; - case 1: /* fabs */ - gen_helper_fabs_ST0(cpu_env); - break; - case 4: /* ftst */ - gen_helper_fldz_FT0(cpu_env); - gen_helper_fcom_ST0_FT0(cpu_env); - break; - case 5: /* fxam */ - gen_helper_fxam_ST0(cpu_env); - break; - default: - goto unknown_op; - } - break; - case 0x0d: /* grp d9/5 */ - { - switch(rm) { - case 0: - gen_helper_fpush(cpu_env); - gen_helper_fld1_ST0(cpu_env); - break; - case 1: - gen_helper_fpush(cpu_env); - gen_helper_fldl2t_ST0(cpu_env); - break; - case 2: - gen_helper_fpush(cpu_env); - gen_helper_fldl2e_ST0(cpu_env); - break; - case 3: - gen_helper_fpush(cpu_env); - gen_helper_fldpi_ST0(cpu_env); - break; - case 4: - gen_helper_fpush(cpu_env); - gen_helper_fldlg2_ST0(cpu_env); - break; - case 5: - gen_helper_fpush(cpu_env); - gen_helper_fldln2_ST0(cpu_env); - break; - case 6: - gen_helper_fpush(cpu_env); - gen_helper_fldz_ST0(cpu_env); - break; - default: - goto unknown_op; - } - } - break; - case 0x0e: /* grp d9/6 */ - switch(rm) { - case 0: /* f2xm1 */ - gen_helper_f2xm1(cpu_env); - break; - case 1: /* fyl2x */ - gen_helper_fyl2x(cpu_env); - break; - case 2: /* fptan */ - gen_helper_fptan(cpu_env); - break; - case 3: /* fpatan */ - gen_helper_fpatan(cpu_env); - break; - case 4: /* fxtract */ - gen_helper_fxtract(cpu_env); - break; - case 5: /* fprem1 */ - gen_helper_fprem1(cpu_env); - break; - case 6: /* fdecstp */ - gen_helper_fdecstp(cpu_env); - break; - default: - case 7: /* fincstp */ - gen_helper_fincstp(cpu_env); - break; - } - break; - case 0x0f: /* grp d9/7 */ - switch(rm) { - case 0: /* fprem */ - gen_helper_fprem(cpu_env); - break; - case 1: /* fyl2xp1 */ - gen_helper_fyl2xp1(cpu_env); - break; - case 2: /* fsqrt */ - gen_helper_fsqrt(cpu_env); - break; - case 3: /* fsincos */ - gen_helper_fsincos(cpu_env); - break; - case 5: /* fscale */ - gen_helper_fscale(cpu_env); - break; - case 4: /* frndint */ - gen_helper_frndint(cpu_env); - break; - case 6: /* fsin */ - gen_helper_fsin(cpu_env); - break; - default: - case 7: /* fcos */ - gen_helper_fcos(cpu_env); - break; - } - break; - case 0x00: case 0x01: case 0x04 ... 0x07: /* fxxx st, sti */ - case 0x20: case 0x21: case 0x24 ... 0x27: /* fxxx sti, st */ - case 0x30: case 0x31: case 0x34 ... 0x37: /* fxxxp sti, st */ - { - int op1; + switch (op >> 4) { + case 0: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + gen_helper_flds_FT0(cpu_env, s->tmp2_i32); + break; + case 1: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + gen_helper_fildl_FT0(cpu_env, s->tmp2_i32); + break; + case 2: + tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + gen_helper_fldl_FT0(cpu_env, s->tmp1_i64); + break; + case 3: + default: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LESW); + gen_helper_fildl_FT0(cpu_env, s->tmp2_i32); + break; + } - op1 = op & 7; - if (op >= 0x20) { - gen_helper_fp_arith_STN_ST0(op1, opreg); - if (op >= 0x30) - gen_helper_fpop(cpu_env); - } else { - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); gen_helper_fp_arith_ST0_FT0(op1); + if (op1 == 3) { + /* fcomp needs pop */ + gen_helper_fpop(cpu_env); + } } - } - break; - case 0x02: /* fcom */ - case 0x22: /* fcom2, undocumented op */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fcom_ST0_FT0(cpu_env); - break; - case 0x03: /* fcomp */ - case 0x23: /* fcomp3, undocumented op */ - case 0x32: /* fcomp5, undocumented op */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fcom_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); - break; - case 0x15: /* da/5 */ - switch(rm) { - case 1: /* fucompp */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1)); - gen_helper_fucom_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); - gen_helper_fpop(cpu_env); break; - default: - goto unknown_op; - } - break; - case 0x1c: - switch(rm) { - case 0: /* feni (287 only, just do nop here) */ + case 0x08: /* flds */ + case 0x0a: /* fsts */ + case 0x0b: /* fstps */ + case 0x18 ... 0x1b: /* fildl, fisttpl, fistl, fistpl */ + case 0x28 ... 0x2b: /* fldl, fisttpll, fstl, fstpl */ + case 0x38 ... 0x3b: /* filds, fisttps, fists, fistps */ + switch (op & 7) { + case 0: + switch (op >> 4) { + case 0: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + gen_helper_flds_ST0(cpu_env, s->tmp2_i32); + break; + case 1: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + gen_helper_fildl_ST0(cpu_env, s->tmp2_i32); + break; + case 2: + tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + gen_helper_fldl_ST0(cpu_env, s->tmp1_i64); + break; + case 3: + default: + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LESW); + gen_helper_fildl_ST0(cpu_env, s->tmp2_i32); + break; + } + break; + case 1: + /* XXX: the corresponding CPUID bit must be tested ! */ + switch (op >> 4) { + case 1: + gen_helper_fisttl_ST0(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + break; + case 2: + gen_helper_fisttll_ST0(s->tmp1_i64, cpu_env); + tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + break; + case 3: + default: + gen_helper_fistt_ST0(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUW); + break; + } + gen_helper_fpop(cpu_env); + break; + default: + switch (op >> 4) { + case 0: + gen_helper_fsts_ST0(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + break; + case 1: + gen_helper_fistl_ST0(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUL); + break; + case 2: + gen_helper_fstl_ST0(s->tmp1_i64, cpu_env); + tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + break; + case 3: + default: + gen_helper_fist_ST0(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUW); + break; + } + if ((op & 7) == 3) { + gen_helper_fpop(cpu_env); + } + break; + } break; - case 1: /* fdisi (287 only, just do nop here) */ + case 0x0c: /* fldenv mem */ + gen_helper_fldenv(cpu_env, s->A0, + tcg_const_i32(dflag - 1)); break; - case 2: /* fclex */ - gen_helper_fclex(cpu_env); + case 0x0d: /* fldcw mem */ + tcg_gen_qemu_ld_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUW); + gen_helper_fldcw(cpu_env, s->tmp2_i32); break; - case 3: /* fninit */ - gen_helper_fninit(cpu_env); + case 0x0e: /* fnstenv mem */ + gen_helper_fstenv(cpu_env, s->A0, + tcg_const_i32(dflag - 1)); break; - case 4: /* fsetpm (287 only, just do nop here) */ + case 0x0f: /* fnstcw mem */ + gen_helper_fnstcw(s->tmp2_i32, cpu_env); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUW); break; - default: - goto unknown_op; - } - break; - case 0x1d: /* fucomi */ - if (!(s->cpuid_features & CPUID_CMOV)) { - goto illegal_op; - } - gen_update_cc_op(s); - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fucomi_ST0_FT0(cpu_env); - set_cc_op(s, CC_OP_EFLAGS); - break; - case 0x1e: /* fcomi */ - if (!(s->cpuid_features & CPUID_CMOV)) { - goto illegal_op; - } - gen_update_cc_op(s); - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fcomi_ST0_FT0(cpu_env); - set_cc_op(s, CC_OP_EFLAGS); - break; - case 0x28: /* ffree sti */ - gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg)); - break; - case 0x2a: /* fst sti */ - gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg)); - break; - case 0x2b: /* fstp sti */ - case 0x0b: /* fstp1 sti, undocumented op */ - case 0x3a: /* fstp8 sti, undocumented op */ - case 0x3b: /* fstp9 sti, undocumented op */ - gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg)); - gen_helper_fpop(cpu_env); - break; - case 0x2c: /* fucom st(i) */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fucom_ST0_FT0(cpu_env); - break; - case 0x2d: /* fucomp st(i) */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fucom_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); - break; - case 0x33: /* de/3 */ - switch(rm) { - case 1: /* fcompp */ - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1)); - gen_helper_fcom_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); + case 0x1d: /* fldt mem */ + gen_helper_fldt_ST0(cpu_env, s->A0); + break; + case 0x1f: /* fstpt mem */ + gen_helper_fstt_ST0(cpu_env, s->A0); gen_helper_fpop(cpu_env); break; - default: - goto unknown_op; - } - break; - case 0x38: /* ffreep sti, undocumented op */ - gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fpop(cpu_env); - break; - case 0x3c: /* df/4 */ - switch(rm) { - case 0: + case 0x2c: /* frstor mem */ + gen_helper_frstor(cpu_env, s->A0, + tcg_const_i32(dflag - 1)); + break; + case 0x2e: /* fnsave mem */ + gen_helper_fsave(cpu_env, s->A0, + tcg_const_i32(dflag - 1)); + break; + case 0x2f: /* fnstsw mem */ gen_helper_fnstsw(s->tmp2_i32, cpu_env); - tcg_gen_extu_i32_tl(s->T0, s->tmp2_i32); - gen_op_mov_reg_v(s, MO_16, R_EAX, s->T0); + tcg_gen_qemu_st_i32(s->tmp2_i32, s->A0, + s->mem_index, MO_LEUW); + break; + case 0x3c: /* fbld */ + gen_helper_fbld_ST0(cpu_env, s->A0); + break; + case 0x3e: /* fbstp */ + gen_helper_fbst_ST0(cpu_env, s->A0); + gen_helper_fpop(cpu_env); + break; + case 0x3d: /* fildll */ + tcg_gen_qemu_ld_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + gen_helper_fildll_ST0(cpu_env, s->tmp1_i64); + break; + case 0x3f: /* fistpll */ + gen_helper_fistll_ST0(s->tmp1_i64, cpu_env); + tcg_gen_qemu_st_i64(s->tmp1_i64, s->A0, + s->mem_index, MO_LEQ); + gen_helper_fpop(cpu_env); break; default: goto unknown_op; } - break; - case 0x3d: /* fucomip */ - if (!(s->cpuid_features & CPUID_CMOV)) { - goto illegal_op; - } - gen_update_cc_op(s); - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fucomi_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); - set_cc_op(s, CC_OP_EFLAGS); - break; - case 0x3e: /* fcomip */ - if (!(s->cpuid_features & CPUID_CMOV)) { - goto illegal_op; - } - gen_update_cc_op(s); - gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); - gen_helper_fcomi_ST0_FT0(cpu_env); - gen_helper_fpop(cpu_env); - set_cc_op(s, CC_OP_EFLAGS); - break; - case 0x10 ... 0x13: /* fcmovxx */ - case 0x18 ... 0x1b: - { - int op1; - TCGLabel *l1; - static const uint8_t fcmov_cc[8] = { - (JCC_B << 1), - (JCC_Z << 1), - (JCC_BE << 1), - (JCC_P << 1), - }; + } else { + /* register float ops */ + opreg = rm; + + switch (op) { + case 0x08: /* fld sti */ + gen_helper_fpush(cpu_env); + gen_helper_fmov_ST0_STN(cpu_env, + tcg_const_i32((opreg + 1) & 7)); + break; + case 0x09: /* fxchg sti */ + case 0x29: /* fxchg4 sti, undocumented op */ + case 0x39: /* fxchg7 sti, undocumented op */ + gen_helper_fxchg_ST0_STN(cpu_env, tcg_const_i32(opreg)); + break; + case 0x0a: /* grp d9/2 */ + switch (rm) { + case 0: /* fnop */ + /* check exceptions (FreeBSD FPU probe) */ + gen_helper_fwait(cpu_env); + break; + default: + goto unknown_op; + } + break; + case 0x0c: /* grp d9/4 */ + switch (rm) { + case 0: /* fchs */ + gen_helper_fchs_ST0(cpu_env); + break; + case 1: /* fabs */ + gen_helper_fabs_ST0(cpu_env); + break; + case 4: /* ftst */ + gen_helper_fldz_FT0(cpu_env); + gen_helper_fcom_ST0_FT0(cpu_env); + break; + case 5: /* fxam */ + gen_helper_fxam_ST0(cpu_env); + break; + default: + goto unknown_op; + } + break; + case 0x0d: /* grp d9/5 */ + { + switch (rm) { + case 0: + gen_helper_fpush(cpu_env); + gen_helper_fld1_ST0(cpu_env); + break; + case 1: + gen_helper_fpush(cpu_env); + gen_helper_fldl2t_ST0(cpu_env); + break; + case 2: + gen_helper_fpush(cpu_env); + gen_helper_fldl2e_ST0(cpu_env); + break; + case 3: + gen_helper_fpush(cpu_env); + gen_helper_fldpi_ST0(cpu_env); + break; + case 4: + gen_helper_fpush(cpu_env); + gen_helper_fldlg2_ST0(cpu_env); + break; + case 5: + gen_helper_fpush(cpu_env); + gen_helper_fldln2_ST0(cpu_env); + break; + case 6: + gen_helper_fpush(cpu_env); + gen_helper_fldz_ST0(cpu_env); + break; + default: + goto unknown_op; + } + } + break; + case 0x0e: /* grp d9/6 */ + switch (rm) { + case 0: /* f2xm1 */ + gen_helper_f2xm1(cpu_env); + break; + case 1: /* fyl2x */ + gen_helper_fyl2x(cpu_env); + break; + case 2: /* fptan */ + gen_helper_fptan(cpu_env); + break; + case 3: /* fpatan */ + gen_helper_fpatan(cpu_env); + break; + case 4: /* fxtract */ + gen_helper_fxtract(cpu_env); + break; + case 5: /* fprem1 */ + gen_helper_fprem1(cpu_env); + break; + case 6: /* fdecstp */ + gen_helper_fdecstp(cpu_env); + break; + default: + case 7: /* fincstp */ + gen_helper_fincstp(cpu_env); + break; + } + break; + case 0x0f: /* grp d9/7 */ + switch (rm) { + case 0: /* fprem */ + gen_helper_fprem(cpu_env); + break; + case 1: /* fyl2xp1 */ + gen_helper_fyl2xp1(cpu_env); + break; + case 2: /* fsqrt */ + gen_helper_fsqrt(cpu_env); + break; + case 3: /* fsincos */ + gen_helper_fsincos(cpu_env); + break; + case 5: /* fscale */ + gen_helper_fscale(cpu_env); + break; + case 4: /* frndint */ + gen_helper_frndint(cpu_env); + break; + case 6: /* fsin */ + gen_helper_fsin(cpu_env); + break; + default: + case 7: /* fcos */ + gen_helper_fcos(cpu_env); + break; + } + break; + case 0x00: case 0x01: case 0x04 ... 0x07: /* fxxx st, sti */ + case 0x20: case 0x21: case 0x24 ... 0x27: /* fxxx sti, st */ + case 0x30: case 0x31: case 0x34 ... 0x37: /* fxxxp sti, st */ + { + int op1; + op1 = op & 7; + if (op >= 0x20) { + gen_helper_fp_arith_STN_ST0(op1, opreg); + if (op >= 0x30) { + gen_helper_fpop(cpu_env); + } + } else { + gen_helper_fmov_FT0_STN(cpu_env, + tcg_const_i32(opreg)); + gen_helper_fp_arith_ST0_FT0(op1); + } + } + break; + case 0x02: /* fcom */ + case 0x22: /* fcom2, undocumented op */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fcom_ST0_FT0(cpu_env); + break; + case 0x03: /* fcomp */ + case 0x23: /* fcomp3, undocumented op */ + case 0x32: /* fcomp5, undocumented op */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fcom_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + break; + case 0x15: /* da/5 */ + switch (rm) { + case 1: /* fucompp */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1)); + gen_helper_fucom_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + gen_helper_fpop(cpu_env); + break; + default: + goto unknown_op; + } + break; + case 0x1c: + switch (rm) { + case 0: /* feni (287 only, just do nop here) */ + break; + case 1: /* fdisi (287 only, just do nop here) */ + break; + case 2: /* fclex */ + gen_helper_fclex(cpu_env); + break; + case 3: /* fninit */ + gen_helper_fninit(cpu_env); + break; + case 4: /* fsetpm (287 only, just do nop here) */ + break; + default: + goto unknown_op; + } + break; + case 0x1d: /* fucomi */ if (!(s->cpuid_features & CPUID_CMOV)) { goto illegal_op; } - op1 = fcmov_cc[op & 3] | (((op >> 3) & 1) ^ 1); - l1 = gen_new_label(); - gen_jcc1_noeob(s, op1, l1); - gen_helper_fmov_ST0_STN(cpu_env, tcg_const_i32(opreg)); - gen_set_label(l1); + gen_update_cc_op(s); + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fucomi_ST0_FT0(cpu_env); + set_cc_op(s, CC_OP_EFLAGS); + break; + case 0x1e: /* fcomi */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } + gen_update_cc_op(s); + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fcomi_ST0_FT0(cpu_env); + set_cc_op(s, CC_OP_EFLAGS); + break; + case 0x28: /* ffree sti */ + gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg)); + break; + case 0x2a: /* fst sti */ + gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg)); + break; + case 0x2b: /* fstp sti */ + case 0x0b: /* fstp1 sti, undocumented op */ + case 0x3a: /* fstp8 sti, undocumented op */ + case 0x3b: /* fstp9 sti, undocumented op */ + gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg)); + gen_helper_fpop(cpu_env); + break; + case 0x2c: /* fucom st(i) */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fucom_ST0_FT0(cpu_env); + break; + case 0x2d: /* fucomp st(i) */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fucom_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + break; + case 0x33: /* de/3 */ + switch (rm) { + case 1: /* fcompp */ + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1)); + gen_helper_fcom_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + gen_helper_fpop(cpu_env); + break; + default: + goto unknown_op; + } + break; + case 0x38: /* ffreep sti, undocumented op */ + gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fpop(cpu_env); + break; + case 0x3c: /* df/4 */ + switch (rm) { + case 0: + gen_helper_fnstsw(s->tmp2_i32, cpu_env); + tcg_gen_extu_i32_tl(s->T0, s->tmp2_i32); + gen_op_mov_reg_v(s, MO_16, R_EAX, s->T0); + break; + default: + goto unknown_op; + } + break; + case 0x3d: /* fucomip */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } + gen_update_cc_op(s); + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fucomi_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + set_cc_op(s, CC_OP_EFLAGS); + break; + case 0x3e: /* fcomip */ + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } + gen_update_cc_op(s); + gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg)); + gen_helper_fcomi_ST0_FT0(cpu_env); + gen_helper_fpop(cpu_env); + set_cc_op(s, CC_OP_EFLAGS); + break; + case 0x10 ... 0x13: /* fcmovxx */ + case 0x18 ... 0x1b: + { + int op1; + TCGLabel *l1; + static const uint8_t fcmov_cc[8] = { + (JCC_B << 1), + (JCC_Z << 1), + (JCC_BE << 1), + (JCC_P << 1), + }; + + if (!(s->cpuid_features & CPUID_CMOV)) { + goto illegal_op; + } + op1 = fcmov_cc[op & 3] | (((op >> 3) & 1) ^ 1); + l1 = gen_new_label(); + gen_jcc1_noeob(s, op1, l1); + gen_helper_fmov_ST0_STN(cpu_env, tcg_const_i32(opreg)); + gen_set_label(l1); + } + break; + default: + goto unknown_op; } - break; - default: - goto unknown_op; } } break; -- 2.25.1