Archimedes 305, Archimedes 440, Archimedes 3000, Archimedes 410/1, Archimedes 420/1, Archimedes 440/1, Archimedes 540, Acorn A5000, Acorn A4, Acorn A4000, Acorn A5000 Alpha
- renamed a310->aa310 to avoid conflict with Amiga machines
- added all missing OS releases Arthur 0.30, RISC OS 2.01, RISC OS 3.00, RISC OS 3.10, RISC OS 3.19 (German)
- all machines default to OS (Arthur, RISC OS 2, RISC OS 3) they were shipped with
- corrected ROM labels/locations
- added default CMOS to boot to desktop
- mapped Acorn A4 Power Management extension
the bios and turn off JP1 as part of the installation. A v1 bios flash is included, but
you aren't forced to use it. [smf]
Moved G-NET protection out of ATAFLASH and into individual devices for each type of card [smf]
Implemented enough analogue control reading on ZN1/ZN2 for RC De Go & Go By RC [smf]
Fixed ZN1/ZN2 DSW descriptions [smf]
Added build dates and times to G-NET game descriptions [smf]
New machines added or promoted from NOT_WORKING status
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Shikigami no Shiro - internal build (V1.02J 2001/09/27 18:45) [rtw, ShouTime, smf, O.Galibert]
Go By RC (V2.03O 1999/05/25 13:31) [smf]
RC De Go (V2.03J 1999/05/22 19:29) [smf]
05928: nbajamex: game crashes / nvram gets corrupted
- Emulated the Acclaim RAX sound board, adding sound to Batman Forever and NBA Jam Extreme [Phil Bennett]
- Hooked up extra NVRAM in NBA Jam Extreme [Phil Bennett]
with the following games
Time Scanner (TS 2.0, Magnet System, prototype)
Exzisus (EX 1.0, Magnet System, prototype)
Xain'd Sleena (SC 3.0, Magnet System, prototype)
this is a checkpoint, there is a sizeable ToDo list but I think this is a good enough state for initial inclusion before working out the remaining issues. ArcadeHacker has the hardware working for questions etc.
I would especially appreciate help with sound (haven't a clue how it hooks up, tried lots of things, no luck) and some help in going over the CPU comms, especially with the sprite CPU as I think I must be missing something important. Likewise help from somebody more familiar with the floppy code from MESS so that it can use that, I had no luck in getting it to work with the copy protection or from a rom region, I've kept all floppy related code in a device so it's very easy to swap out so for now what I've got isn't intrusive.
note, very weird idea for a system, they've ported 3 arcade games from other manufacturers, original titles were advertised, but it's likely nothing more of the system exists.
the system uses 5 PCBs, one Z80 on each and instead of having dedicated sprite / tilemap chips they have the Z80s doing software rendering, using 8bpp framebuffers. 2 of the boards are for background planes, 1 of the boards is for sprites. The hardware has various memory expansions which look like afterthoughts as they're addressed in strange ways.
ataxx: Fixed missing sound channel caused by one dac not being hooked up and one dac being hooked up to two addresses.
bestbest: Fixed high pitch screech caused by incorrect addressing (two dacs weren't hooked up and two were hooked up to two addresses).
cchasm: Fixed static noise generation caused by feeding the same bit to both dacs.
cheekyms: Slightly improved sound by implementing sound triggers as 8 x 1 bit dacs instead of 1 x 8 bit dac.
galeb: Fixed sound by implementing it according to http://www.deltasoft.com.hr/retro/galebemu.htm & implemented enough of LOAD/SAVE to stop it hanging.
hard drivin: (all games in driver) Improved 12 bit controls, although centre still goes out of sync.
mea8000: Converted to a sound device.
megaphx: Fixed noisy samples due to wrong format.
microvsn: Fixed sound pitch caused by incorrect usage of write_signed8().
seicross: Changed to a 4 bit dac as samples are packed nibble.
spaceg: Preliminary sound using space invaders samples.
suna8: Changed to a 4 bit dac as samples are packed nibble.
vcombat: Fixed static during machine gun fire due to incorrect dc offset removal.
vectrex: Fixed noisy samples due to wrong format.
wheelfir: Fixed sound, eeprom & analogue steering wheel and brake pedal.
