33 lines
619 B
Plaintext
33 lines
619 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/Mux.hdl
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/**
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* Multiplexor:
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* out = a if sel == 0
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* b otherwise
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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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// Put your code here:
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//!sel
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Nand(a=sel, b=sel, out=w1);
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//X=a*!sel
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Nand(a=a, b=w1, out=w2);
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Nand(a=w2, b=w2, out=w3);
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//Y=b*sel
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Nand(a=b, b=sel, out=w4);
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Nand(a=w4, b=w4, out=w5);
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//out=X+Y
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Nand(a=w3, b=w3, out=w6);
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Nand(a=w5, b=w5, out=w7);
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Nand(a=w6, b=w7, out=out);
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} |