billjg0 wrote
I accidentally got the solution by trial and error but I don't understand why this works
[Working version]
and this doesn't
[Non-working version]
from this:
out = a if sel == 00
b if sel == 01
c if sel == 10
d if sel == 11
sel[1] looks perfect to me as that is the element that varies (for a vs b and c vs d). what am I missing here?
Hardware bits are numbered from RIGHT to LEFT, so it is sel[0] that is changing between a/b and c/d.
When you start working with binary numbers in chapter 2, you'll see that this makes sense because then bit[n] on a bus is the 2^n bit of the binary number.
Please edit your post to remove the HDL. We don't want working code to remain on the forum.
--Mark
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