@@ -214,8 +214,8 @@ screen_poke(Uxn *u, Uint16 ptr, Uint8 b0, Uint8 b1)

 		Uint16 x = mempeek16(u, ptr + 8);

 		Uint16 y = mempeek16(u, ptr + 10);

 		Uint8 *addr = &u->ram.dat[mempeek16(u, ptr + 12)];

-		Uint8 *layer = (b1 >> 4 & 0xf) % 2 ? ppu.fg : ppu.bg;

-		switch((b1 >> 4) / 2) {

+		Uint8 *layer = b1 >> 4 & 0x1 ? ppu.fg : ppu.bg;

+		switch(b1 >> 5) {

 		case 0: putpixel(&ppu, layer, x, y, b1 & 0x3); break;

 		case 1: puticn(&ppu, layer, x, y, addr, b1 & 0xf); break;

 		case 2: putchr(&ppu, layer, x, y, addr, b1 & 0xf); break;

@@ -3,6 +3,7 @@

 /*

 Copyright (c) 2021 Devine Lu Linvega

+Copyright (c) 2021 Andrew Alderwick

 Permission to use, copy, modify, and distribute this software for any

 purpose with or without fee is hereby granted, provided that the above