At 07:46 AM 5/14/2004, you wrote:
Hi there!
> Isn't there a way to do scores with less RAM usage?
> If you store 2 6-digit scores that eats up a whopping 24 bytes of RAM for
> the pointers alone.
Certainly. Normal bcd storage of 2 scores only takes 6 Bytes.
Depends all on what your going for.
Happy Dude is trying to optimize for using less ROM, so the tradeoff is
using more RAM.
I'm not talking about storing the score values itself, but the pointers to
the graphics of each digit (to be loaded via Y indirect).
In Death Derby I have to reserve two bytes of RAM to point to each frame of
digit graphics, hence 12 bytes.
And what sucks is half of those bytes is static because the page of ROM the
digits are in is static.
What I think I've seen in score routines is an on-the-fly pointer
calculation routine that keeps overwriting the same RAM to set the pointers
just in time, but in my playfield score routine I don't have the kernel
time for that so I have to set up all the score pointers inbetween frames.
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