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Altera_Forum's avatar
Altera_Forum
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14 years ago

ALTFP_MULT and ALTFP_ADD_SUB issues

Hi there, When I simulate the ALTFP_MULT and ALTFP_ADD_SUB megafunctions in modelsim (directly from my testbench, not through my main design) I get zero results from both. Has anyone else encou...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

My fix was fairly design specific. That is, I fixed a part of my design that drove these units and then they started synthesising properly.

As it was a little while back, the most I remember it being was that the registers that drove my ALTFP_MULT (which then fed the adders) were incorrectly specified. Once I fixed this small issue, everything else fell into place.

I wish I could give more information then that. I wish you the best of luck though, I know how frustrating it is!