DMux8Way :

這個跟 DMux4Way 是一樣的，

只是輸出變成8個，選擇位增加一個。

| in  |  sel  |  a  |  b  |  c  |  d  |  e  |  f  |  g  |  h  |
|  0  |  000  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  001  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  010  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  011  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  100  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  101  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  110  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  0  |  111  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  1  |  000  |  1  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  1  |  001  |  0  |  1  |  0  |  0  |  0  |  0  |  0  |  0  |
|  1  |  010  |  0  |  0  |  1  |  0  |  0  |  0  |  0  |  0  |
|  1  |  011  |  0  |  0  |  0  |  1  |  0  |  0  |  0  |  0  |
|  1  |  100  |  0  |  0  |  0  |  0  |  1  |  0  |  0  |  0  |
|  1  |  101  |  0  |  0  |  0  |  0  |  0  |  1  |  0  |  0  |
|  1  |  110  |  0  |  0  |  0  |  0  |  0  |  0  |  1  |  0  |
|  1  |  111  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  1  |

/**
 * 8-way demultiplexor:
 * {a, b, c, d, e, f, g, h} = {in, 0, 0, 0, 0, 0, 0, 0} if sel == 000
 *                            {0, in, 0, 0, 0, 0, 0, 0} if sel == 001
 *                            etc.
 *                            {0, 0, 0, 0, 0, 0, 0, in} if sel == 111
 */

CHIP DMux8Way
 { 
    IN in, sel[3];
    OUT a, b, c, d, e, f, g, h;

    PARTS:
    DMux(in = in,   sel = sel[0], a = aceg, b = bdfh);
    DMux(in = aceg, sel = sel[1], a = ae, b = cg);
    DMux(in = bdfh, sel = sel[1], a = bf, b = dh);
    DMux(in = ae,   sel = sel[2], a = a, b = e);
    DMux(in = cg,   sel = sel[2], a = c, b = g);
    DMux(in = bf,   sel = sel[2], a = b, b = f);
    DMux(in = dh,   sel = sel[2], a = d, b = h);
}