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Sean O'Connor
ecdc6ab2bc
- Changed nandOut -> tmp - Changed notA, notB -> tmp1, tmp2 - Changed descriptive names -> tmp1, tmp2, tmp3, etc. Makes code cleaner and more concise while maintaining functionality.
22 lines
687 B
Plaintext
22 lines
687 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/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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// Use two levels of DMux: first level splits by sel[1], second level splits by sel[0]
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DMux(in=in, sel=sel[1], a=tmp1, b=tmp2);
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DMux(in=tmp1, sel=sel[0], a=a, b=b);
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DMux(in=tmp2, sel=sel[0], a=c, b=d);
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}
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