From: bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Mon, 19 Jan 2004 20:31:37 +0000 (+0000)
Subject: L4 fix for rep nop (should handle all cases)
X-Git-Tag: TizenStudio_2.0_p2.3~15643
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab1f142ba0b667679ea2ed55598f22551c19dac4;p=sdk%2Femulator%2Fqemu.git

L4 fix for rep nop (should handle all cases)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@571 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/target-i386/translate.c b/target-i386/translate.c
index 2407735..cec9a42 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -3732,6 +3732,9 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
         /************************/
         /* misc */
     case 0x90: /* nop */
+        /* XXX: correct lock test for all insn */
+        if (prefixes & PREFIX_LOCK)
+            goto illegal_op;
         break;
     case 0x9b: /* fwait */
         break;
@@ -4137,6 +4140,8 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
         gen_op_unlock();
     return s->pc;
  illegal_op:
+    if (s->prefix & PREFIX_LOCK)
+        gen_op_unlock();
     /* XXX: ensure that no lock was generated */
     gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base);
     return s->pc;