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// 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/builtIn/HalfAdder.hdl
/**
* Half adder. Computes sum, the least significnat bit of a + b,
* and carry, the most significnat bit of a + b.
*/
CHIP HalfAdder {
IN a, b;
OUT sum, // LSB of a + b
carry; // MSB of a + b
BUILTIN HalfAdder;
}
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