diff -r 97757a798918 -r 458a6c3de579 Hardware/LPC/F718XX.cs
--- a/Hardware/LPC/F718XX.cs	Sun Oct 17 08:21:33 2010 +0000
+++ b/Hardware/LPC/F718XX.cs	Sun Oct 17 16:04:19 2010 +0000
@@ -65,6 +65,12 @@
       return WinRing0.ReadIoPortByte((ushort)(address + DATA_REGISTER_OFFSET));
     }
 
+    public byte? ReadGPIO(int index) {
+      return null;
+    }
+
+    public void WriteGPIO(int index, byte value) { }
+
     public F718XX(Chip chip, ushort address) {
       this.address = address;
       this.chip = chip;