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Altera_Forum
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15 years ago

compare multiple std_logic_vectors

Hi, I have several FIFO's and i need to read out, the one with the most data first. I use the byte counter of the fifo to compare. But what is the best way to compare those vectors? if A...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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I would never recommend recursion in VHDL to a beginner.

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A reasonable viewpoint. The suggested recursion is actually ending up in a binary tree. For a limited number of inputs (e.g. <= 8) the code text will be shorter when writing it enrolled. For a higer number of inputs, you possibly want a pipelined action, which unfortunately can't be provided by the recursive construct.