Re: A86: BG v1.0 grayscale converter is out !
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Re: A86: BG v1.0 grayscale converter is out !
Ti86ROM@aol.com wrote:
> In a message dated 6/2/98 7:40:36 PM EST, yarin@acc.umu.se writes:
>
> >
> > ?!?! The part in Daedalus which makes the game slow is (mainly) all
> > mathematical calculations, especially multiplications. Instead of
> > calculating
> > $36*$2B with a 8 bit multiplication routine, it would be quite much faster
> > to
> > just fetch the result from a HUGE table. If the table is to support every
> > $xx*$xx multiplcation, it would have to have 256x256/2 entries (since a*b
> > = b*a), each entry taking 2 bytes. Thus 64k is needed.
> >
> 256 * 256 / 2 = 32k, not 64k
True. He said 256*256/2 entires, and each entry is 2 bytes. So 256*256/2*2 =
64k.
--
Bryan Rabeler <brabeler@ticalc.org>
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