Comment by rwallace
6 years ago
Interesting article! One thing I'm curious about: I can see what the bit shifter was for, but the article also mentions a separate byte shifter. What was that for?
6 years ago
Interesting article! One thing I'm curious about: I can see what the bit shifter was for, but the article also mentions a separate byte shifter. What was that for?
It's for shifting by more than 7 bits. The shift is split mod 8 bits into a bit and byte portion to reduce the geometric complexity of the circuit (and perhaps help it meet timing).