// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems"
// by Nisan and Schocken, MIT Press.
// File name: tools/builtInChips/Keyboard.hdl
/**
 * The keyboard (memory map).
 * Outputs the character code of the currently pressed key,
 * or 0 if no key is pressed.
 *
 * This built-in implementation has a visualization side effect.
 */
CHIP Keyboard {

    OUT out[16];

    BUILTIN Keyboard;
}