Changeset 8832 in vbox

Timestamp:

May 15, 2008 7:05:53 AM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

30841

Message:

exception 6 is a trap => don't change the PC

File:

• trunk/src/recompiler/target-i386/translate.c (modified) (2 diffs)

trunk/src/recompiler/target-i386/translate.c

@@ -3338 +3338 @@
                 /* /1: CMPXCHG8B mem64 or CMPXCHG16B mem128 */
                 case 0xc7:
+                    op = (modrm >> 3) & 7;
+                    if (op != 1)
+                        break;
                     return false;
             }
@@ -3345 +3348 @@
     /* illegal sequence. */
     Log(("illegal lock sequence %VGv (b=%#x)\n", pc_start, b));
-    s->pc = pc; /* XXX: What's the correct value here? */
+    /* exception 6 (UD) is a fault, therefore the PC must not be changed */
     return true;
 #else