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added undocumented FPU ops support 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1156 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-11-24 19:28:52 +00:00
parent 17444c9c84
commit c169c906a3
1 changed files with 12 additions and 0 deletions
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12
target-i386/translate.c
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@ -2958,6 +2958,8 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
gen_op_fmov_ST0_STN((opreg + 1) & 7);
break;
case 0x09: /* fxchg sti */
case 0x29: /* fxchg4 sti, undocumented op */
case 0x39: /* fxchg7 sti, undocumented op */
gen_op_fxchg_ST0_STN(opreg);
break;
case 0x0a: /* grp d9/2 */
@ -3104,10 +3106,13 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
}
break;
case 0x02: /* fcom */
case 0x22: /* fcom2, undocumented op */
gen_op_fmov_FT0_STN(opreg);
gen_op_fcom_ST0_FT0();
break;
case 0x03: /* fcomp */
case 0x23: /* fcomp3, undocumented op */
case 0x32: /* fcomp5, undocumented op */
gen_op_fmov_FT0_STN(opreg);
gen_op_fcom_ST0_FT0();
gen_op_fpop();
@ -3163,6 +3168,9 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
gen_op_fmov_STN_ST0(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_op_fmov_STN_ST0(opreg);
gen_op_fpop();
break;
@ -3187,6 +3195,10 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
goto illegal_op;
}
break;
case 0x38: /* ffreep sti, undocumented op */
gen_op_ffree_STN(opreg);
gen_op_fpop();
break;
case 0x3c: /* df/4 */
switch(rm) {
case 0: