Subject: Re: [stella] Color-cycling From: Lee Seitz <lkseitz@xxxxxxxxxx> Date: Thu, 24 Jul 1997 18:42:50 -0500 (CDT) |
Nick S Bensema boldly stated: > >IT'S SOFTWARE, I TELL YOU! SOFTWARE!!!! > >Most games use an EOR or ADC on every write to color registers against a >memory location in RAM which holds zero when there's no attract mode, and >some pseudorandom number when there is. I've seen the source code to Combat, >Defender, and Pitfall, and this is the method used in each of them. > >Not all games use the color cycling method as an attract mode. Some games >have a "demo game" running, while others run a cute animation sequence. >See Joust, Ms. Pac-Man, and Moon Patrol. Thanks for the info. Even after you've told me what to look for, I can't find it in the Combat code. I gotta learn 6507 assembly someday. -- Lee K. Seitz * lkseitz@xxxxxxxxxx * http://fly.hiwaay.net/~lkseitz/ Classic Video Games Nexus Maintainer (fly.hiwaay.net/~lkseitz/cvg/nexus/) Dare to be stupid. Do the Donkey Kong. O- Finger for Geek Code. Live long and prosper. May the Force be with you. Up, up, and away! -- Archives updated once/day at http://www.biglist.com/lists/stella/archives/ Unsubscribing and other info at http://www.biglist.com/lists/stella/stella.html
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