Electrical Engineering Question:
What is the difference between:
c = foo ? a : b;
and
if (foo) c = a;
else c = b;
Answer:
The ? merges answers if the condition is "x", so for instance if foo = 1'bx, a = 'b10, and b = 'b11, you'd get c = 'b1x.
On the other hand, if treats Xs or Zs as FALSE, so you'd always get c = b.
On the other hand, if treats Xs or Zs as FALSE, so you'd always get c = b.
| Previous Question | Next Question |
| What is the difference between the following two lines of Verilog code? | Using the given, draw the waveforms for the following versions of a? |