Re: [stella] Re: 2600Cookbook - exact horizontal positioning

Subject: Re: [stella] Re: 2600Cookbook - exact horizontal positioning
From: Manuel Rotschkar <cybergoth@xxxxxxxx>
Date: Wed, 14 Apr 2004 20:44:47 +0200
Hi there!

Am Wed, 14 Apr 2004 10:33:16 -0500 schrieb Erik Mooney <erik@xxxxxxxxxx>:
"Andrew Davie" <atari2600@xxxxxxxxxxxxx> wrote:

It's not *mine* I stole it from
(R.Mundschau) who independantly invented it.  It was also discovered by
Manuel, who noticed it in Battlezone (I think).

Actually, Mr. Mundschau's version does have a significant
advantage over Battlezone.  By using a lookup table for the HMxx
value rather than calculating it with four shifts, it fits
(almost) entirely into one scanline.

The technique I'm using in Star Fire successfully positions two sprites at once in a single scanline since november 2002... ;-)

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