I am experimenting with the hardware simulator.
Chapter 00 web page.
I loaded the Mux8Way16 chip from the 'built in chips' dir.
I can change the values of the input pins for the
a - h arrays only some of the time,
Example, I type 111 into array b, hit eval and look at output.
If I change array b to, say, 1010, and hit enter, the input reverts
back to 111 ( the previous value)