I need to do logical operations on 64-byte and 128-byte variables

youngdave

Dear All
I need to do logical operations on 64-byte and 128-byte variables, but Spin doesn't support them.
Can I do the following all in a flash, without using a loop?
array0[noparse][[/noparse]n to m] AND array1[noparse][[/noparse]n to m]
TIA David Young

mctrivia

no you will need to write a loop to do it.

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Nick Mueller

> Can I do the following all in a flash, without using a loop?

By unrolling the loop?

array0[noparse][[/noparse]m] AND array1[noparse][[/noparse]m]
array0[noparse][[/noparse]n] AND array1[noparse][[/noparse]n]
...
array0[noparse][[/noparse]x] AND array1[noparse][[/noparse]x]

Was that serious enough?


Nick

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he1957

Hello youngdave,

Please describe exactly:

1. what it is you want to do
2. why you want to do it and
3. what you have tried to accomplish this

Post your code so it can be examined.

Phil Pilgrim (PhiPi)

Dave,

I'd write methods for things like crossover and mutation. You do need to use a loop for multi-long logic operations, either with a repeat or unrolled, but at least with a method, you only have to write it once. For single-point crossover, of course, the boolean operation has to be performed only on a single long. The remaining longs can just be swapped or copied.

-Phil