23 lines
436 B
Plaintext
23 lines
436 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/01/Or.hdl
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/**
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* Or gate:
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* out = 1 if (a == 1 or b == 1)
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* 0 otherwise
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*/
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CHIP Or {
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IN a, b;
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OUT out;
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PARTS:
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Not(in=b,out=negB);
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Not(in=a,out=negA);
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Nand(a=a,b=negB,out=out1);
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Nand(a=out1,b=b,out=out2);
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Nand(a=negA,b=out2,out=out);
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}
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