o add snes fatfs dummy

o add fatfs custom chip to bsnes
o finishes fatfs linux backend smaple

snes/fatfstest/main.c

@@ -0,0 +1,61 @@
+#include "data.h";
+#include "pad.h";
+#include "event.h";
+#include "myEvents.h";
+#include "ressource.h";
+#include "PPU.h"
+#include "debug.h"
+
+
+#include <stdlib.h>
+
+padStatus pad1;
+
+void initInternalRegisters(void) {
+	characterLocation[0] = 0x0000;
+	characterLocation[1] = 0x0000;
+	characterLocation[2] = 0x0000;
+	characterLocation[3] = 0x0000;
+	initDebugMap();
+}
+
+void preInit(void) {
+	// For testing purpose ... 
+	// Insert code here to be executed before register init
+}
+
+void main(void) {
+	word i,j;
+	word crc01;
+	word crc02;
+	padStatus pad1;
+	char line_header[32] = "OK2";
+	char packet[4] = "TEST";
+	initInternalRegisters();
+
+	*(byte*) 0x2105 = 0x01;	// MODE 1 value
+	*(byte*) 0x212c = 0x01; // Plane 0 (bit one) enable register
+	*(byte*) 0x212d = 0x00;	// All subPlane disable
+	*(byte*) 0x2100 = 0x0f; // enable background
+
+    enableDebugScreen();
+    printDebugScreen(line_header,0);
+    printf("Debugging console  test\n");
+    printf("test me\n");
+    printDebugScreen(line_header,1);
+    
+	while(1){
+		while(!pad1.start) {
+			waitForVBlank();
+			pad1 = readPad((byte) 0);
+		}
+	}	
+	while(1);
+}
+
+void IRQHandler(void) {
+}
+
+void NMIHandler(void) {
+	//processEvents();
+}