Re: Modulus in Applesoft

[mjmahon@aol.com (Michael J. Mahon)]

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?

There is no modulus function in Applesoft, though it would be handy.

It is usually done like this:

555 H = INT(V / 256): L = V - H * 256

This sets H to the high byte of V and L to the low byte.

The generalization to other divisors is straightforward.

-michael

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