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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:
// Put your code here:
Mux16 (a=out5, b=in, sel=load, out=out0);
Inc16 (in=out0, out=out1);
Mux16 (a=out1, b=out0, sel=load, out=out2);
Mux16 (a=out0, b=out2, sel=inc, out=out3);
Mux16 (a=out3, b=false, sel=reset, out=out4);
Register (in=out4, load=true, out=out5, out=out);
//Inc16 (in=out4, out=out0);
//Mux16 (a=out4, b=out0, sel=inc, out=out1);
//Mux16 (a=out1, b=in, sel=load, out=out2);
//Mux16 (a=out2, b=false, sel=reset, out=out3);
//Register (in=out3, load=true, out=out4, out=out);
}
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