Re: Modulus in Applesoft

[salfter@salfter.diespammersdie.dyndns.org (Scott Alfter)]

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In <eYE8d.259383$%n4.21465@bignews6.bellsouth.net> Jayson Smith wrote:
> I'm having problems using the Modulus operator under Applesoft, or 
> don't know how to do it.  In Integer, if I remember correctly, you 
> could do, E.G. 10 poke 493,x mod 256:poke 494,x/256 and have a memory 
> address poked in.  That's just an example.  However, doing print 900 
> mod 256 in Applesoft produces the result 9000, and I think I just 
> figured out why. I think it's printing the number 900, then the 
> contents of variable 'mod' which is 0.  So how do you do that in 
> Applesoft? Thanks.

I always used something like this to find x mod y:

abs(x)-int(abs(x)/y)*y

If you know x will always be non-negative, you can leave out the two
occurrences of abs() and speed things up a bit.

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