v1.0.0 — initial public release

oricdemo2026 v1.0.0 — initial public release

A full 12-section demoscene production for the Oric Atmos (6502A @ 1 MHz,
bare metal, no ROM calls), built with the Oscar64
cross-compiler. A nod to the machine's own 1985 "Welcome to Oric Atmos"
tape demo — same spirit (a splash, a logo, an animated scene, a handful
of effect showcases, a credits roll), reworked as a real multi-section
production with real music, real converted photographs, and a few
original techniques of its own.

Two independent, fully-playable distributions

• LOCI (oricdemo.tap + 7 asset files) — loads via a
  LOCI mass-storage device. The
  .tap itself is only the code; music and every picture load from disk
  at runtime, so all 8 files must sit together in one folder on the
  LOCI's SD card/USB storage.
• Floppy disk (oricdemo_floppy.dsk) — a single, fully self-contained
  bootable Microdisc disk image with everything baked in. No LOCI, no
  DOS/SEDORIC, nothing else needed at all.

Both play the full demo end-to-end, with real AY-3-8912 music (Arkos
Tracker) and 12 sections, cycling forever once started.

What's in this release

• Full 12-section running order: idi8b splash, Oric logo + raster bars,
  bird scene (parallax sky/creek backdrop with an animated bird), HIRES
  shapes showcase, polygon workout, 3D function surface, sprite showcase
  (satellite drifting over a procedural starfield), scroll showcase, wave
  showcase, macaw showcase, raster IRQ showcase, and a closing credits
  scroller — see the README
  for a screenshot per section and docs/architecture.md
  for the full technical writeup.
• Real AY-3-8912 music via an Arkos Tracker (.aky) player, alternating
  two tracks automatically once each finishes a full playthrough.
• A from-scratch Oric HIRES graphics library, a proportional bitmap-font
  renderer, sprite/dissolve/raster-IRQ effect libraries, and Python
  asset-conversion tooling (oric_pictconv.py, oric_ttfconv.py,
  oric_floppybuilder.py) — see docs/README.md
  for the full library API reference.
• An automated Phosphoric-based regression suite plus pure-Python unit
  tests for the picture/floppy-image conversion tools.

Notable fixes made before this release

• A real-hardware-only LOCI bug where bare filenames failed to resolve
  against the boot directory on multi-drive LOCI hardware, despite
  passing every automated/emulator test — fixed via include/homedir.c/h.
• Two real Oscar64 -O2 compiler miscompilation bugs found and worked
  around during development.
• A from-scratch Arkos Tracker (.aky) player replacing an earlier PT3
  player, after several rounds of PT3 decode-bug fixes still didn't
  produce satisfying music (PT3 support is archived on the pt3 branch).

Installation

Download oricdemo2026_v1.0.0.zip below. It unzips directly onto a LOCI
device's SD card/USB storage root (the idi8b/oricdemo2026/ folder is
already laid out correctly inside) and also contains the standalone
floppy disk image (oricdemo_floppy.dsk — just boot it, no LOCI needed)
and a PDF copy of the README. See the
README's Installation section
for full step-by-step instructions for both distributions.

Full changelog: CHANGELOG.md