> I am using a PIC16f877 and CCs compiler.  Is there a maths
> function that will enable me to calculate 50% of an integer
> variable in a register and store the answer in another
> variable, or would I calculate it myself.

I may be missing something here, but is there a problem with doing a right
shift?  Or are you looking for something more generalised than /2 ?

> Also is an integer 8 bit or 16 bit long.  some books say it
> is 8bit and others 16 bit.

"It depends on the compiler" is the short answer.  I'm assuming here that if
you're referring to integer types, you are using a compiler...

With the stuff I more normally use (gcc on 860s), an int is 32 bit, a short
int 16 and a byte (usually defined as an unsigned char) is 8 - but, for
portability, you should never depend upon those being consistent.

This has been discussed before IIRC - perhaps a search of the archives would
help?

Peter



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