Merge pull request #897 from LuigiBlood/gpc4m

SNES: Add Game Processor RAM Cassette Read/Write support

Author: PsyK0p4T

Cart_Reader/Cart_Reader.ino

@@ -258,6 +258,7 @@ void print_STR(byte string_number, boolean newline) {
 #define mode_7800 38
 #define mode_VECTREX 39
 #define mode_ST 40
+#define mode_GPC 41
 
 // optimization-safe nop delay
 #define NOP __asm__ __volatile__("nop\n\t")
@@ -3598,6 +3599,11 @@ void loop() {
     stMenu();
   }
 #endif
+#ifdef enable_GPC
+  else if (mode == mode_GPC) {
+    gpcMenu();
+  }
+#endif
 #ifdef enable_NES
   else if (mode == mode_NES) {
     nesMenu();

Cart_Reader/Config.h

@@ -230,6 +230,13 @@
 
 /****/
 
+/* [ Super Famicom Game Processor RAM Cassette -------------------- ]
+*/
+
+//#define enable_GPC
+
+/****/
+
 /* [ Super Nintendo ----------------------------------------------- ]
 */