We have a periodic real time task that typically executes in about 40 us on
a Pentium 266 MHz processor. We find that when the calculation results in
one or more underflows, the execution time may increase to 60 us or more due
to denormalization of the floating point numbers. We can avoid this by
checking the operands of the floating point multiplication before performing
the multiplication, but we would prefer that this is handled implicitly. Is
there a compiler flag or other method that can be used to set small numbers
to zero rather than the slower, gradual underflow?
Thank you.
Victor Iannello
Synchrony Inc.
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