Re: A86: Loading Strings and Graphics
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Re: A86: Loading Strings and Graphics
From: David Phillips <david@acz.org>
> They are NOT the same processor. The GB CPU is not even made by Zilog. For
> those of you too lazy to look it up, here is an excerpt from the pan doc.
> Maybe this will inspire a few of you hunt stuff down. (hint:
> http://www.devrs.com/)
>
> Game Boy Specs
> --------------
>
> CPU: 8-bit (Similar to the Z80 processor.)
Nintendo says Z80 on their site, which is not totally wrong.
The processor is a Sharp LR35902 (single chip Z80 variant).
From: <rabidcow@juno.com>
> first of all, even if the display resolution were the same, color (if you
> use a color screen) takes many times the amount of memory as black &
> white. that memory has to come from somewhere. there's not really
> enough space on ram page 0 for that & stealing memory elsewhere would get
> tricky. i suppose you theoretically could add a second ram chip,
> doubling the total memory on the calc, but that'd be hideous to solder
Nah, that's not a problem. Color sprites on the gameboy are stored the same
way as grayscale sprites, with 4 colors per sprite. You just need to specify the
palette and this require very little amount of memory.
---
Clem Vasseur <darkclem@wanadoo.fr>
Icarus Productions <http://icarus.ticalc.org>
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