Index: /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp	(revision 41836)
+++ /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp	(revision 41837)
@@ -7941,5 +7941,5 @@
     {
         iemInitDecoder(pIemCpu);
-        pIemCpu->cbOpcode = RT_MIN(cbOpcodeBytes, sizeof(pIemCpu->abOpcode));
+        pIemCpu->cbOpcode = (uint8_t)RT_MIN(cbOpcodeBytes, sizeof(pIemCpu->abOpcode));
         memcpy(pIemCpu->abOpcode, pvOpcodeBytes, pIemCpu->cbOpcode);
         rcStrict = VINF_SUCCESS;