diff --git a/gpxe/src/arch/i386/prefix/xromprefix.S b/gpxe/src/arch/i386/prefix/xromprefix.S
new file mode 100644
index 0000000..d7c861f
--- /dev/null
+++ b/gpxe/src/arch/i386/prefix/xromprefix.S
@@ -0,0 +1,9 @@
+/*
+ * ROM prefix that loads the bulk of the ROM using direct PCI accesses,
+ * so as not to take up much option ROM space on PCI <3.0 systems.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER )
+
+#define LOAD_ROM_FROM_PCI
+#include "romprefix.S"