Cloud CP/M

VISDEMO1

Drive A : User 1 • by DJ Sures

Created 2026-11-12 • Updated 2026-11-12

A demo for the NABU written entirely by Claude

VISDEMO1.COM is located on the A: drive in user area 1. To run this, look in the Internet Adapter or Headless menu and select Cloud CPM. After CPM loads and you are presented with an A:0> prompt, type the drive (A:), and then type the user area (user 1). If you type DIR, look for the COM file (VISDEMO1.COM). Enter that filename at the prompt to execute VISDEMO1.

VISDEMO1 is a demoscene-style demo for the NABU PC, written in C and hand-tuned Z80 assembly with NABU-LIB. It opens with a 4x rainbow logo over rasterbars, then a three-layer parallax starfield with bouncing "NABU" sprites. A real-time 3D cube then morphs into a rotating 4D hypercube. After that come a full-screen 256-shade dithered plasma and a sine scroller whose letters each bob on their own wave. It ends with typewriter credits. An AY-3-8910 chiptune with bass, drums, arpeggios and a vibrato lead plays throughout. Most scenes run at 60 fps on the stock 3.58 MHz Z80 and TMS9918A. Press any key to skip a scene.

Location

Drive A : User 1

Files (1)
Screenshots
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