@@ -22,16 +22,9 @@ static Uint8 blending[4][16] = {

 	{1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3, 1},

 	{2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2}};

-static int

-clamp(int val, int min, int max)

-{

-	return (val >= min) ? (val <= max) ? val : max : min;

-}

-

 static void

 screen_write(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y, Uint8 color)

 {

-

 	if(x < p->width && y < p->height) {

 		Uint32 i = x + y * p->width;

 		if(color != layer->pixels[i]) {

@@ -86,11 +79,13 @@ screen_palette(UxnScreen *p, Uint8 *addr)

 void

 screen_resize(UxnScreen *p, Uint16 width, Uint16 height)

 {

-	Uint8

-		*bg = realloc(p->bg.pixels, width * height),

-		*fg = realloc(p->fg.pixels, width * height);

-	Uint32

-		*pixels = realloc(p->pixels, width * height * sizeof(Uint32));

+	Uint8 *bg, *fg;

+	Uint32 *pixels;

+	if(width < 0x20 || height < 0x20 || width >= 0x400 || height >= 0x400)

+		return;

+	bg = realloc(p->bg.pixels, width * height),

+	fg = realloc(p->fg.pixels, width * height);

+	pixels = realloc(p->pixels, width * height * sizeof(Uint32));

 	if(bg) p->bg.pixels = bg;

 	if(fg) p->fg.pixels = fg;

 	if(pixels) p->pixels = pixels;

@@ -130,10 +125,10 @@ screen_deo(Uint8 *ram, Uint8 *d, Uint8 port)

 {

 	switch(port) {

 	case 0x3:

-		screen_resize(&uxn_screen, clamp(PEEK2(d + 2), 1, 1024), uxn_screen.height);

+		screen_resize(&uxn_screen, PEEK2(d + 2), uxn_screen.height);

 		break;

 	case 0x5:

-		screen_resize(&uxn_screen, uxn_screen.width, clamp(PEEK2(d + 4), 1, 1024));

+		screen_resize(&uxn_screen, uxn_screen.width, PEEK2(d + 4));

 		break;

 	case 0xe: {

 		Uint16 x = PEEK2(d + 0x8), y = PEEK2(d + 0xa);