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@AliSajid
Created April 28, 2015 22:58
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// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems"
// by Nisan and Schocken, MIT Press.
// File name: projects/03/a/PC.hdl
/**
* A 16-bit counter with load and reset control bits.
* if (reset[t] == 1) out[t+1] = 0
* else if (load[t] == 1) out[t+1] = in[t]
* else if (inc[t] == 1) out[t+1] = out[t] + 1 (integer addition)
* else out[t+1] = out[t]
*/
CHIP PC {
IN in[16],load,inc,reset;
OUT out[16];
PARTS:
Inc16(in=out1,out=out2);
Mux16(a=out1,b=out2,sel=inc,out=out3);
Mux16(a=out3,b=in,sel=load,out=out4);
Mux16(a=out4,b=false,sel=reset,out=out5);
Register(in=out5,load=true,out=out1,out=out);
}
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