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Altera_Forum's avatar
Altera_Forum
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17 years ago

signed/unsigned multipliers

I can't seem to find a way to instantiate a multiplier that will dynamically select between signed and unsigned multiplication. This is on a Cyclone II, but applies to other parts as well. Read...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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But, if you have spare bits on the input, you can simply sign extend.

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Yes, but it's 100% spare bits. I didn't want to suggest the solution for this reason.

And you don't necessarily need the MegaWizard, but you have to understand various additional parameters of cycloneii_mac_mult then.