===================================================================
RCS file: /sources/qemu/qemu/target-i386/translate.c,v
retrieving revision 1.59
retrieving revision 1.60
diff -u -r1.59 -r1.60
--- qemu/target-i386/translate.c 2006/07/10 19:53:04 1.59
+++ qemu/target-i386/translate.c 2006/09/03 17:09:02 1.60
@@ -1615,6 +1615,56 @@
*offset_ptr = disp;
}
+static void gen_nop_modrm(DisasContext *s, int modrm)
+{
+ int mod, rm, base, code;
+
+ mod = (modrm >> 6) & 3;
+ if (mod == 3)
+ return;
+ rm = modrm & 7;
+
+ if (s->aflag) {
+
+ base = rm;
+
+ if (base == 4) {
+ code = ldub_code(s->pc++);
+ base = (code & 7);
+ }
+
+ switch (mod) {
+ case 0:
+ if (base == 5) {
+ s->pc += 4;
+ }
+ break;
+ case 1:
+ s->pc++;
+ break;
+ default:
+ case 2:
+ s->pc += 4;
+ break;
+ }
+ } else {
+ switch (mod) {
+ case 0:
+ if (rm == 6) {
+ s->pc += 2;
+ }
+ break;
+ case 1:
+ s->pc++;
+ break;
+ default:
+ case 2:
+ s->pc += 2;
+ break;
+ }
+ }
+}
+
/* used for LEA and MOV AX, mem */
static void gen_add_A0_ds_seg(DisasContext *s)
{
@@ -5791,10 +5841,15 @@
gen_lea_modrm(s, modrm, ®_addr, &offset_addr);
/* nothing more to do */
break;
- default:
- goto illegal_op;
+ default: /* nop (multi byte) */
+ gen_nop_modrm(s, modrm);
+ break;
}
break;
+ case 0x119 ... 0x11f: /* nop (multi byte) */
+ modrm = ldub_code(s->pc++);
+ gen_nop_modrm(s, modrm);
+ break;
case 0x120: /* mov reg, crN */
case 0x122: /* mov crN, reg */
if (s->cpl != 0) {