o add io test

snes/fatfstest/debug.c

@@ -1,20 +1,33 @@
 #include <string.h>
+#include <stdarg.h>
+#include <fcntl.h>
+
 #include "data.h"
 #include "pad.h"
 #include "PPU.h"
 #include "ressource.h"
 
 word debugMap[0x400];
-
+static char debug_buffer[255];
+char hex_chars[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
 
 void debug_init(void) {
 	word i;
 	for(i=0; i<0x400; i++) {
 		debugMap[i] = 0x00;
 	}
+    memset(debug_buffer,0,255);
+}
+
+void debug_enable(void){
+	VRAMLoad((word) debugFont_pic, 0x5000, 2048);
+	CGRAMLoad((word) debugFont_pal, (byte) 0x00, (word) 16);
+	VRAMLoad((word) debugMap, 0x4000, 0x0800);
+	setTileMapLocation(0x4000, (byte) 0x00, (byte) 0);
+	setCharacterLocation(0x5000, (byte) 0);
+	*(byte*) 0x2100 = 0x0f; // enable background
 }
 
-char hex_chars[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
 
 void int2hex(unsigned long number, char *buf,word size)
 {
@@ -30,6 +43,8 @@ void int2hex(unsigned long number, char *buf,word size)
 
 }
 
+
+
 void print_screen(char *buffer,word y){
     char i;
     char l;
@@ -43,16 +58,55 @@ void print_screen(char *buffer,word y){
 	}
 }
 
+
+
 void print_console(char *buffer){
 	while(*buffer)
 	    *(byte*) 0x3000=*buffer++;
 }
 
-void debug_enable(void){
-	VRAMLoad((word) debugFont_pic, 0x5000, 2048);
-	CGRAMLoad((word) debugFont_pal, (byte) 0x00, (word) 16);
-	VRAMLoad((word) debugMap, 0x4000, 0x0800);
-	setTileMapLocation(0x4000, (byte) 0x00, (byte) 0);
-	setCharacterLocation(0x5000, (byte) 0);
-	*(byte*) 0x2100 = 0x0f; // enable background
-}
+
+void printfc(char *fmt, ...){
+    va_list arg;
+    va_start(arg,fmt);
+    vsprintf(debug_buffer,fmt,arg); 
+    print_console(debug_buffer);
+}
+
+
+/* keep the linker happy */
+int open(const char * _name, int _mode){
+    print_console("open called\n");
+    return -1;
+}
+
+int close(int fd){
+    print_console("close called\n");
+    return -1;
+    
+} 
+
+size_t read(int fd, void * buff, size_t len){
+    print_console("read called\n");
+    return 0;
+} 
+
+size_t write(int fd, void * buffer, size_t len){
+    print_console("write called\n");
+    return 0;
+}
+
+long lseek(int fd, long off, int count){
+    print_console("lseek called\n");
+    return 0;
+} 
+
+int unlink(const char * name){
+    print_console("unlink called\n");
+    return -1;
+}
+
+int isatty(){
+    print_console("isatty called\n");
+    return 1;
+}