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L4 fix for rep nop (should handle all cases)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@571 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-01-19 20:31:37 +00:00
parent 4120b61d00
commit ab1f142ba0
1 changed files with 5 additions and 0 deletions
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5
target-i386/translate.c
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@ -3732,6 +3732,9 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
/************************/ /************************/
/* misc */ /* misc */
case 0x90: /* nop */ case 0x90: /* nop */
/* XXX: correct lock test for all insn */
if (prefixes & PREFIX_LOCK)
goto illegal_op;
break; break;
case 0x9b: /* fwait */ case 0x9b: /* fwait */
break; break;
@ -4137,6 +4140,8 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
gen_op_unlock(); gen_op_unlock();
return s->pc; return s->pc;
illegal_op: illegal_op:
if (s->prefix & PREFIX_LOCK)
gen_op_unlock();
/* XXX: ensure that no lock was generated */ /* XXX: ensure that no lock was generated */
gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base); gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base);
return s->pc; return s->pc;