Adds Dmux8Way. Not as fun as the last one
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@ -11,6 +11,8 @@
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* {0, 0, 0, in} if sel == 11
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* {0, 0, 0, in} if sel == 11
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*/
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*/
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// COST = 37
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CHIP DMux4Way {
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CHIP DMux4Way {
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IN in, sel[2];
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IN in, sel[2];
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OUT a, b, c, d;
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OUT a, b, c, d;
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@ -11,10 +11,31 @@
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* {0, 0, 0, 0, 0, 0, 0, in} if sel == 111
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* {0, 0, 0, 0, 0, 0, 0, in} if sel == 111
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*/
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*/
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// COST = 37 + 8*8 = 101
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CHIP DMux8Way {
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CHIP DMux8Way {
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IN in, sel[3];
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IN in, sel[3];
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OUT a, b, c, d, e, f, g, h;
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OUT a, b, c, d, e, f, g, h;
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PARTS:
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PARTS:
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// Put your code here:
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}
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// This makes our "repeated building block" - which we repeat twice
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// Same as how we do it in DMux4Way
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DMux4Way(in=in, sel[0]=sel[0], sel[1]=sel[1], a=w, b=x, c=y, d=z);
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// If sel[2] is 1:
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// set a,b,c,d to 0
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// else set a,b,c,d to w,x,y,z
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Mux(a=w, b=false, sel=sel[2], out=a);
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Mux(a=x, b=false, sel=sel[2], out=b);
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Mux(a=y, b=false, sel=sel[2], out=c);
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Mux(a=z, b=false, sel=sel[2], out=d);
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// If sel[2] is 0:
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// set e,f,g,h to 0
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// else set e,f,g,h to w,x,y,z
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Mux(a=false, b=w, sel=sel[2], out=e);
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Mux(a=false, b=x, sel=sel[2], out=f);
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Mux(a=false, b=y, sel=sel[2], out=g);
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Mux(a=false, b=z, sel=sel[2], out=h);
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}
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@ -0,0 +1,17 @@
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| in | sel | a | b | c | d | e | f | g | h |
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| 0 | 000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 010 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 011 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 100 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 101 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 0 | 111 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 1 | 000 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 1 | 001 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
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| 1 | 010 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
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| 1 | 011 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
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| 1 | 100 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
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| 1 | 101 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
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| 1 | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
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| 1 | 111 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
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