What is the component for if-clause in digital logic?

Question

Do you have any ideas which component use for if clause in digital logic What is the component for if-clause in digital logic?

Answer 1

The answer they are looking for is probably multiplexer.

Answer 2

In VHDL: Your if-statement will be synthesized by a synthesizer who decides what to do with it. Mostly, if-statements are synthesized by generating a multiplexer. But keep in mind, that your synthesis tool might synthesize your if-statement to a more optimised structure of gates, that does not neccessarily resemble to a classical multiplexer.

You can try to synthesize your code and have a look at the RTL-schematic.

Answer 3

In my experience, most of the time, the chained if-else structure will be synthesized to simple and/or/... gates.