deater information 463 glöps
- general:
- level: user
- personal:
- first name: Vince
- last name: Weaver
- 64k Apple II Apple II Megademo by VMW Productions [web]
- This demo uses the vapor-lock/floating bus hack to find HBLANK/VBLANK on the Apple II. Each scene (except for the mode7 pseudo-3d scene) is then cycle counted with mid-screen mode switching to mix the TEXT / LORES / HIRES modes in ways not considered usually possible.
- isokadded on the 2018-11-04 04:38:02
- 4k Apple II AppleII Hackfest 2k Rasterbars
- This was written in 4 days at Kansasfest as part of the Hackfest. It uses an unusual 40x96 by 15 color Lo-res mode on the Apple II by switching between graphics page1 and page2 every two scanlines (typically you only get 40x48 in Apple II lowres mode).
The Apple II has no standard way to detect hblank or vblank, so the demo uses the "floating bus" to determine beam position on the screen at the start, and everything else (scrolling, rasterbars, mockingboard music) is done by pure cycle counting. - isokadded on the 2018-07-24 18:13:04
account created on the 2018-02-27 18:03:25