QkoSad
47 lines
1.2 KiB
Plaintext
Executable File
47 lines
1.2 KiB
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/01/DMux8Way.hdl
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/**
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* 8-way demultiplexor:
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* {a, b, c, d, e, f, g, h} = {in, 0, 0, 0, 0, 0, 0, 0} if sel == 000
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* {0, in, 0, 0, 0, 0, 0, 0} if sel == 001
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* etc.
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* {0, 0, 0, 0, 0, 0, 0, in} if sel == 111
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*/
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CHIP DMux8Way {
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IN in, sel[3];
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OUT a, b, c, d, e, f, g, h;
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PARTS:
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Not(in=sel[0],out=notsel0);
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Not(in=sel[1],out=notsel1);
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Not(in=sel[2],out=notsel2);
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And(a=notsel2,b=notsel1,out=out1);
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And(a=out1,b=notsel0,out=outA);
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And(a=out1,b=sel[0],out=outB);
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And(a=notsel2,b=sel[1],out=out2);
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And(a=out2,b=notsel0,out=outC);
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And(a=out2,b=sel[0],out=outD);
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And(a=sel[2],b=notsel1,out=out3);
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And(a=out3,b=notsel0,out=outE);
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And(a=out3,b=sel[0],out=outF);
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And(a=sel[2],b=sel[1],out=out4);
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And(a=out4,b=notsel0,out=outG);
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And(a=out4,b=sel[0],out=outH);
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And(a=in,b=outA,out=a);
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And(a=in,b=outB,out=b);
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And(a=in,b=outC,out=c);
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And(a=in,b=outD,out=d);
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And(a=in,b=outE,out=e);
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And(a=in,b=outF,out=f);
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And(a=in,b=outG,out=g);
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And(a=in,b=outH,out=h);
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} |