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Altera_Forum
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14 years ago

Multiplication Rounding

Hey guys, I am multiplying two 32 bit numbers using LPM_MULT. Each number is in Q16.16 fixed point format. The product is a 64 bit Q32.32 number. I then shift the product to the ri...
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Altera_Forum
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14 years ago

but be careful with 2's complement. MSB is sign bit and the one next to it may differ. Moreover apply saturation after you add the 1 of rounding in case rounding leads to overflow.