Index: /trunk/src/VBox/Devices/PC/BIOS/pciutil.c
===================================================================
--- /trunk/src/VBox/Devices/PC/BIOS/pciutil.c	(revision 81129)
+++ /trunk/src/VBox/Devices/PC/BIOS/pciutil.c	(revision 81130)
@@ -106,9 +106,8 @@
 # pragma aux pci_write_cfgd = \
     ".386"                  \
-    "xchg   cx, dx"         \
     "shl    ecx, 16"        \
     "mov    cx, dx"         \
     "int    0x1a"           \
-    parm [ax] [bx] [di] [dx cx];
+    parm [ax] [bx] [di] [cx dx];
 #endif