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20 lines
504 B
Plaintext
20 lines
504 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/1/Mux.hdl
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/**
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* Multiplexor:
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* if (sel = 0) out = a, else out = b
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*/
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CHIP Mux {
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IN a, b, sel;
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OUT out;
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PARTS:
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// Mux(a,b,sel) = Or(And(a, Not(sel)), And(b, sel))
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Not(in=sel, out=notSel);
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And(a=a, b=notSel, out=aAndNotSel);
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And(a=b, b=sel, out=bAndSel);
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Or(a=aAndNotSel, b=bAndSel, out=out);
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}
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