Errata in Chapter 1, DMux8Way.cmp ?

[Fleurette]

Hi everyone,

First of all thank you very much for this awesome website.

I think there is a mistake in DMux8Way.cmp. In the file, sel is an array of 2 bits, when it should an array of 3 bits (as you need to make choice between 8 different sources of output).

In particular, these lines don't make sense at all!
| in   | sel  |  a  |  b  |  c  |  d  |  e  |  f  |  g  |  h  |
|  1  |  00  |  1  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
|  1  |  00  |  0  |  0  |  0  |  0  |  1  |  0  |  0  |  0  |

How can the same value of sel yeld to two different results ?

Kind Regards,
Fleurette.

[cadet1620]

You are correct; there should be 3 sel bits.

Corrected .tst and .cmp files are available in this forum post.

--Mark