Has anyone had lack of processing power?

[Matt Leese]

Originally Posted by Rickertsen2

Where did you come up with these figures? The time difference btw float and fixed/decimal depends on the operation. For some operations its not that great. For others it is very large. Same with the instruction cycles.

I haven't done any real investigating into this but I'm going to have to say that it is almost guaranteed that a floating point operation will take an order of magnitude longer than the corresponding integer operation. For processors with a floating point unit, floating point operations take significantly longer than integer operations. Given that the PIC has to emulate floating point operations, what may be a one cycle operation (say, adding two integers) may take many more cycles because of all the additional operations required to unpack the floating point, perform the operation, and then repeat it.

Floating point operations on this processor will take much longer than integer operations. However, this may or may not be significant depending on other factors.

Matt