21 lines
552 B
Plaintext
21 lines
552 B
Plaintext
// This file is part of www.nand2tetris.org
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// and the book "The Elements of Computing Systems"
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// by Nisan and Schocken, MIT Press.
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// File name: projects/02/FullAdder.hdl
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/**
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* Computes the sum of three bits.
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*/
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CHIP FullAdder {
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IN a, b, c; // 1-bit inputs
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OUT sum, // Right bit of a + b + c
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carry; // Left bit of a + b + c
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PARTS:
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// Put you code here:
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HalfAdder(a=a, b=b, sum=sumi, carry=carryi);
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HalfAdder(a=c, b=sumi, sum=sum, carry=carryj);
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Or(a=carryi, b=carryj, out=carry);
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}
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