39 lines
758 B
Plaintext
Executable File
39 lines
758 B
Plaintext
Executable File
// 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/DMux4Way.hdl
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/**
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* 4-way demultiplexor:
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* [a, b, c, d] = [in, 0, 0, 0] if sel = 00
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* [0, in, 0, 0] if sel = 01
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* [0, 0, in, 0] if sel = 10
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* [0, 0, 0, in] if sel = 11
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*/
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CHIP DMux4Way {
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IN in, sel[2];
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OUT a, b, c, d;
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PARTS:
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DMux(in= in, sel=sel[1] , a=topHalf , b=botHalf );
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DMux(in= topHalf, sel=sel[0] , a=a , b=b );
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DMux(in= botHalf, sel=sel[0] , a=c , b=d );
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}
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/**
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CHIP DMux {
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IN in, sel;
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OUT a, b;
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PARTS:
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Not(in=sel,out=notSel);
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And(a=in,b=notSel,out=a);
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And(a=in,b=sel,out=b);
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}
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*/ |