@@ -41,13 +41,12 @@ readpixel(Uint8 *sprite, Uint8 h, Uint8 v)

 void

 clear(Ppu *p)

 {

-	int i, sz = p->height * p->width;

-	for(i = 0; i < sz; ++i) {

+	int i, sz = p->height * p->width, rows = sz / 4;

+	for(i = 0; i < sz; ++i)

 		p->output[i] = p->colors[0];

+	for(i = 0; i < rows; i++) {

 		p->fg[i] = 0;

 		p->bg[i] = 0;

-		p->fg[sz + i] = 0;

-		p->bg[sz + i] = 0;

 	}

 }

@@ -160,9 +159,9 @@ initppu(Ppu *p, Uint8 hor, Uint8 ver, Uint8 pad)

 	p->height = (8 * p->ver + p->pad * 2);

 	if(!(p->output = malloc(p->width * p->height * sizeof(Uint32))))

 		return 0;

-	if(!(p->bg = malloc(p->width * p->height * sizeof(Uint8) * 2)))

+	if(!(p->bg = malloc(p->width * p->height * sizeof(Uint8) / 4)))

 		return 0;

-	if(!(p->fg = malloc(p->width * p->height * sizeof(Uint8) * 2)))

+	if(!(p->fg = malloc(p->width * p->height * sizeof(Uint8) / 4)))

 		return 0;

 	clear(p);

 	return 1;