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I don't understand the error in line 71 . Please help me fix it
ADL code : CHIP ALU {
IN
x[16], y[16], // 16-bit inputs
zx, // zero the x input?
nx, // negate the x input?
zy, // zero the y input?
ny, // negate the y input?
f, // compute out = x + y (if 1) or x & y (if 0)
no; // negate the out output?
OUT
out[16], // 16-bit output
zr, // 1 if (out == 0), 0 otherwise
ng; // 1 if (out < 0), 0 otherwise
PARTS:
// Put you code here:
// zero the x input
Mux16(a=x,b=false,sel=zx,out=x1);
//negate the x input
Not16(in=x1,out=xwire);
Mux16(a=x1,b=xwire,sel=nx,out=x2);
// zero the y input
Mux16(a=y,b=false,sel=zy,out=y1);
// negate the y input
Not16(in=y1,out=ywire);
Mux16(a=y1,b=ywire,sel=ny,out=y2);
// compute out =x+y (if1) or x & y (if0) - out5
Add16(a=x2,b=y2,out=add);
And16(a=x2,b=y2,out=and);
Mux16(a=and,b=add,sel=f,out=out1);
// negate the out output
Not16(in=out1,out=out2);
Mux16(a=out1,b=out2,sel=no,out=out);
// zr
Or8Way(in=out[0..7],out=or1);
Or8Way(in=out[8..15],out=or2);
Or(a=or1,b=or2,out=selzr);
Mux(a=true,b=false,sel=selzr,out=zr);
//ng
And(a=out[15],b=true,out=and1);
Mux(a=false,b=true,sel=and1,out=ng);
}
and Or8Way code
CHIP Or8Way {
IN in[8];
OUT out;
PARTS:
// Put your code here:
Or(a=in[0],b=in[1],out=out0);
Or(a=out0,b=in[2],out=out1);
Or(a=out1,b=in[3],out=out2);
Or(a=out2,b=in[4],out=out3);
Or(a=out3,b=in[5],out=out4);
Or(a=out4,b=in[6],out=out5);
Or(a=out5,b=in[7],out=out);
}
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Locked
