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Altera_Forum
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15 years ago

Changing data width in floating point ip vs using fixed point

I am confused in trying to differentiate among the two options: Changing the default data width(32 bits) in Altera floating point ip cores vs Using fixed point ip. Are these two things not the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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The FP MegaFunction data width can't be reduced below 32 bit single precision. FP format (it's using a normalized mantissa and an exponent) is basically different from fixed point format.

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So, if I wanted to use fixed point arithmetic would that mean that I would have to write my own cores for all the arithmetic(+,-,/,*,exp) myself?