A86: Re: Random
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A86: Re: Random
>Hello. How do I get a random number with a range of 0 to HL?
A quick and dirty way would be
ld a, r
ld h, a
ld a, r
ld l, a
or you could have a little fun.. i mean, depends how accurate you need it.
Numbers roll after 255. If you get a lot of even numbers you'll have to make
some changes. An easy way like
bit 7, a
jr z, MakeOdd ; Half of the time make odd
or whatever who cares
ld a, r
ld h, a
ld a, r
ld l, a
ld b, a
Loop1:
rl h
ld a, r
add a, l
ld l, a
djnz Loop1
Loop2:
rl l
ld a, r
add a, h
ld h, a
djnz Loop2
I never tested this routine so..
Later,
Matt