-// Replacement functions
-
-void OPProcessList(int scanline, bool render);
+uint8 OPReadByte(uint32, uint32 who = UNKNOWN);
+uint16 OPReadWord(uint32, uint32 who = UNKNOWN);
+void OPWriteByte(uint32, uint8, uint32 who = UNKNOWN);
+void OPWriteWord(uint32, uint16, uint32 who = UNKNOWN);