23 lines
558 B
Plaintext
23 lines
558 B
Plaintext
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// 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: tools/builtIn/PC.hdl
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/**
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* 16-bit counter with load and reset controls.
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*
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* If reset(t-1) then out(t) = 0
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* else if load(t-1) then out(t) = in(t-1)
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* else if inc(t-1) then out(t) = out(t-1) + 1 (integer addition)
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* else out(t) = out(t-1)
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*/
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CHIP PC {
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IN in[16], load, inc, reset;
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OUT out[16];
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BUILTIN PC;
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CLOCKED in, load, inc, reset;
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}
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