Years of developement of the Atari800 emulator by different people have
it running almost 100% of Atari software. Take it into consideration
before you complain ‘The program x doesn’t work with the emulator’.
Most of non-working programs we receive are corrupt. They can’t be run
on a real Atari computer, thus they don’t work with the emulator.
The emulator’s compatibility rate is growing continuously. You can help
us by reporting any non-working software. Please check this first.
This is the list of all known bugs in the emulation. Some
others may have crept in during the development of the Macintosh
version, but are not known at this time.
A few keyboard-related bugs:
- e.g. pressing SHIFT+1 and then releasing SHIFT should still
give
'!' characters
The cycle-exact ANTIC/GTIA/CPU timing is not 100%.
This causes display bugs in following programs:
- Surf's up (game) (The horizon)
- Dimension X (game) (aligment problem? not tested on acutal
machine)
- Te.mod (demo) (small glitched pixel in the final credits on
the
bottom left)
- The break(demo) (bug may exist in the original, check)
- Our 5oft Unity Part (demo) (cycle-aligment, probably WSYNC)
- Endless Dream (demo) (credits in the intro)
- Ergo Bibamus (demo) (one pixel of the flower above the
perspective scroll)
- Isolation (demo) (vector animations)
- Sweet Illusions (demo)
(sprites highlighting the scroll below
wireframe vectors)
Non-bugs:
- Mail Order Monsters (game)
(some colour changes do not align with text,
occurs
on a real Atari)
The following programs are improved by using the new cycle-exact
code
- 8 Players Demo (demo)
- Bewesoft's Demo (demo)
- Bitter Reality (demo)
- Demonic Laughter (music collection)
- Extract (graphics collection)
- GED (graphics editor)
- Joyride (demo)
- Mail Order Monsters (game)
- Master of the Lamps (game)
- Orneta '95 invitro (demo)
- Our 5oft Unity Part (demo)
- Studio Dream (demo)
- Sweet Illusion (demo)
- Te.mod (demo)
- The Break (demo)
- Miner 2049'er (game) (rotating 5's)
- Dimension X (game) (title screen upper and lower bars)
- Graphics impossible (demo) (Antic magazine)
(not tested:)
- Power Graph (graphics editor)
- Darkness Warrior (picture)
POKEY interrupts are scanline-, not cycle-exact.
This causes sound bugs in following programs:
- Mirax Force (game)
- Saturday Demo (demo)
- The Last Guardian (game)
Sound emulation is not accurate enough
This causes sound bugs in following programs:
- Numen (demo)
Sound emulation uses VOL_ONLY_SOUND hack.
This causes sound bugs in following programs:
- Digital Trash (demo)
- Ghostbusters (game)
- Overmind (demo)
Intensive 130xe-banks switching slows down emulation much.
This causes performance problems in following programs:
- Impossible but Real (demo)
- Sheol (demo)
- Total Daze (demo)
- Ultra (demo)