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Altera_Forum's avatar
Altera_Forum
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22 years ago

hw multiplier for Cyclone

With NIOS-1 i could select three implementations for multiplications (sw, mul_step, mul). In Nios-2 this feature is complety missing. Is there any way to tell the SOPC-Builder for NIOS-2 to integrate...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
22 years ago

Elan. Would multiplies and divides in about 35 clock cycles be good enought times for you? If so you could contruct these in hardware and use them as custom instructions (multiplication is a bunch of additions, and division is a bunch of comparisons and subtractions).

For both I'm guessing you are looking at around 300-350LEs to implement those for the NIOS.

Hope that gives you some hope http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif