Index: /trunk/src/VBox/Runtime/common/asm/ASMMemFirstMismatchingU8.asm
===================================================================
--- /trunk/src/VBox/Runtime/common/asm/ASMMemFirstMismatchingU8.asm	(revision 60657)
+++ /trunk/src/VBox/Runtime/common/asm/ASMMemFirstMismatchingU8.asm	(revision 60658)
@@ -286,4 +286,5 @@
         les     di, [bp + 04h]          ; pv (far)
         mov     al, [bp + 0ah]          ; u8
+        mov     ah, al
 
 .is_all_zero_joining: