KmilaConcurrent assignments: when/else and with/select
Two ways to write the same combinational logic — and when each reads better.
Combinational logic
MUXes, decoders, adders — no memory, output is a pure function of the inputs.
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Sample: 3-to-8 decoder
Drive a 3-bit code and watch one-hot outputs light up in the waveform.
Sample: 4-bit ripple-carry adder
A classic — two 4-bit numbers in, 4-bit sum + carry-out. The simplest piece of an ALU.
Fix it: the tristate buffer that always drives
This tristate buffer never releases the bus. Find the typo, fix the behavior.