Changed payload offset, added clearScreen function, etc.

thread/source/FS.h

@@ -4,6 +4,7 @@
 extern unsigned int fopen9(void *handle, wchar_t* name, unsigned int flag);
 extern void fwrite9(void* handle, unsigned int* bytesWritten, void* dst, unsigned int size);
 extern void fread9(void* handle, unsigned int* bytesRead, void *src, unsigned int size);
+extern void fsize9(void *handle, long *size);
 extern void fclose9(void *handle);
 
 #endif

thread/source/FS.s

@@ -39,3 +39,13 @@
 		blx r4
 		pop {r4, pc}
 .pool
+
+.thumb
+.global fsize9
+.type fsize9, %function
+    fsize9:
+        push {r4, lr}
+        ldr r4, =0x0805C175
+        blx r4
+        pop {r4, pc}
+.pool