#include <os.h>

#define DIAGS_SIZE 0xA0000   


void errormsg(char *mesg){
        char title[20];
        char msg[150];
        ascii2utf16(title, "Ndless", sizeof(title));
        ascii2utf16(msg, mesg, sizeof(msg));
        show_dialog_box2(0, title, msg);
}

int main(void) {
        char title[20];
        char msg[150];
	FILE *ifile;

	ifile = fopen("/documents/ndless/diags.img.tns", "rb");
	if (!ifile) {
		errormsg("Can't open input file\n/documents/ndless/diags.img.tns");
		return 1;
	}
// ------- load at 11800000 to parse & trim the diags header -----
	while (fread((void *)0x11800000 , 1, 4, ifile) == 4) {
                if (*(unsigned int *)0x11800000 == 0xe59ff018){     // find first ARM instruction
                  break;
                }
	}
        fread((void *)0x11800004 , 1, DIAGS_SIZE, ifile);  // read the remainder of diags
	fclose(ifile);

        asm(
        ".arm \n"
        "ldr pc, =0x11800000 @ jump to diags\n"
        );
        // ----- should not get here ----
        ascii2utf16(title, "Ndless", sizeof(title));
        ascii2utf16(msg, "Problem executing diags", sizeof(msg));
        show_dialog_box2(0, title, msg);
	return 0;
}