Subject: Re: [stella] Repository|
From: Nick S Bensema <nickb@xxxxxxxxxxxx>
Date: Sun, 22 Feb 1998 12:39:48 -0700 (MST)
> 1- learn the basic concepts from the programmer's guide. And I mean > "basic": don't waste time on VDEL, for example! What's the use of VDEL, > anyway? ;-) It's my understanding that when VDEL is enabled, a player's graphics don't change immediately when its data register changes; it waits until the next write to player data before it makes the change. This was intended to allow single-scanline positioning in double-scanline kernels, but its most common use is in six-digit scoring routines. I once thought, maytbe it would be a good idea to study Rob Colbert's notes and produce a text file explaining it, but then I figured, this type of code is usually just copied straight from disassembled listings anyway. Perhaps I (or someone who can beat me to it) should write a tutorial on stealing code from 2600 games, starting with six-digit scores. When half of it is playing around with a basic kernel and the other half is ripping off David Crane, it'll be a cinch getting started. -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/stella.html Don't post pirate BINs to Stellalist. Be a programmer, not a pirate. Write the best game, win framed autographs of famous Atari alumni!!