@@ -23,7 +23,7 @@ static const char *errors[] = {

 	"Return-stack division by zero"};

 static void

-inspect(Stack *s, char *name)

+print_stack(Stack *s, char *name)

 {

 	Uint8 x, y;

 	fprintf(stderr, "\n%s\n", name);

@@ -57,6 +57,12 @@ uxn_halt(Uxn *u, Uint8 error, Uint16 addr)

 	return 0;

 }

+void

+system_inspect(Uxn *u){

+	print_stack(&u->wst, "Working-stack");

+	print_stack(&u->rst, "Return-stack");

+}

+

 /* IO */

 Uint8

@@ -75,10 +81,7 @@ system_deo(Device *d, Uint8 port)

 	switch(port) {

 	case 0x2: d->u->wst.ptr = d->dat[port]; break;

 	case 0x3: d->u->rst.ptr = d->dat[port]; break;

-	case 0xe:

-		inspect(&d->u->wst, "Working-stack");

-		inspect(&d->u->rst, "Return-stack");

-		break;

+	case 0xe: system_inspect(d->u); break;

 	default: system_deo_special(d, port);

 	}

 }

@@ -14,6 +14,7 @@ typedef struct SystemDevice {

 	struct UxnScreen *screen;

 } SystemDevice;

+void system_inspect(Uxn *u);

 Uint8 system_dei(Device *d, Uint8 port);

 void system_deo(Device *d, Uint8 port);

 void system_deo_special(Device *d, Uint8 port);

@@ -31,29 +31,10 @@ error(char *msg, const char *err)

 	return 0;

 }

-static void

-inspect(Stack *s, char *name)

-{

-	Uint8 x, y;

-	fprintf(stderr, "\n%s\n", name);

-	for(y = 0; y < 0x04; y++) {

-		for(x = 0; x < 0x08; x++) {

-			Uint8 p = y * 0x08 + x;

-			fprintf(stderr,

-				p == s->ptr ? "[%02x]" : " %02x ",

-				s->dat[p]);

-		}

-		fprintf(stderr, "\n");

-	}

-}

-

 void

 system_deo_special(Device *d, Uint8 port)

 {

-	if(port == 0xe) {

-		inspect(&d->u->wst, "Working-stack");

-		inspect(&d->u->rst, "Return-stack");

-	}

+	

 }

 static void

@@ -372,7 +372,7 @@ do_shortcut(Uxn *u, SDL_Event *event)

 	if(event->key.keysym.sym == SDLK_F1)

 		set_zoom(zoom > 2 ? 1 : zoom + 1);

 	else if(event->key.keysym.sym == SDLK_F2)

-		toggle_debugger();

+		system_inspect(u);

 	else if(event->key.keysym.sym == SDLK_F3)

 		capture_screen();

 	else if(event->key.keysym.sym == SDLK_F4)