Picodrive 1.14


notaz

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notaz.gp2x.de
Update, finally. Here comes the changelog:
  • PCM sound implemented. Sonic soundtrack is complete now.
  • Savestates fixed
  • Improved compatibility: many games now boot, but most of them are glitchy.
  • Bugfixes, optimizations.
As promised, Snatcher boots now (at least my US version does). Not sure how long you can progress until it hangs :) As a bonus, Lunar boots too. A bit glitchy, but works. Oh and many other games run too. But most of them have severe graphic glitches and you won't see a thing :)

PCM slows things quite a bit if a lot of channels are used. This is not because it's emulation needs lots of calculations, but because of amount of data, which needs to be moved around (it can do 8 channels @ 32kHz). Switching audio to 22kHz improves things a bit.

detailed changelog:
  • Region autodetection now can be customized.
  • When CDDA music tracks changed, old buffer contents were incorrectly played. Fixed.
  • BRAM is now automatically formatted (no need to enter BIOS menu and format any more).
  • Games now can be reset, CDDA music no longer breaks after loading another ISO.
  • Fixed a race condition between 920 and 940 which sometimes caused CDDA music not to play.
  • Savestates implemented for Sega/Mega CD.
  • PCM sound added.
  • Some mixer code rewritten in asm. 22kHz and 11kHz sound rates are now supported in Mega CD mode (but mp3s must still always be 44kHz stereo).
  • Timer emulation added.
  • CDC DMA tansfers fixed. Snatcher and probably some more games now boot.
  • 2M word RAM -> VDP transfers fixed, no more corruption in Ecco and some other games.
Download here
 
notaz posted on Feb 5 2007 at 12:33 AM said:
...
[*]Region autodetection now can be customized.
...

thanks :)
 
Last edited by a moderator:
purple_goat posted on Feb 4 2007 at 06:56 PM said:
EDIT:hmm... musta clicked post twice... sorry at can someone delete this?

Reported™

Heh ... Many thanks, Notaz ... now to 'acquire' some test material ...

 
Last edited by a moderator:
TelcoLou posted on Feb 4 2007 at 04:03 PM said:
purple_goat posted on Feb 4 2007 at 06:56 PM said:
EDIT:hmm... musta clicked post twice... sorry at can someone delete this?

Reported™

Heh ... Many thanks, Notaz ... now to 'acquire' some test material ...

reported?

oh and thanks EvilDragon for putting it in the archive!
 
Last edited by a moderator:
Relax, I reported it so a mod would get notified ... I asked to have it deleted

(You can do the same you know, no harm done ...)

ANYWAY .....

OMFG!!! Sonic CD!!!! It's beautiful! Thanks again ... Notaz rocks!
 
I havent tried picodrive yet but i think i will tomorrow and i will try lots of cd games and make videos of any that actually do anythin' :D


edit: just tryed sonic cd it works great :D:D:D I should really be sleeping but i think i will try a couple more :)
 
CABBAGES posted on Feb 4 2007 at 07:58 PM said:
I havent tried picodrive yet but i think i will tomorrow and i will try lots of cd games and make videos of any that actually do anythin' :D


edit: just tryed sonic cd it works great :D :D:D I should really be sleeping but i think i will try a couple more :)

Thanks ... (don't bother with Dragon's Lair .. graphic and sound glitches, unplayable)
 
Last edited by a moderator:
Geeez! Finally found the stupid stupid bug!
Now Notaz' link is also working for everybody! Yeeha :)
 
sol feace dosnt load just does the sega logo bit then stops. Batman loads past teh sega logo but nothing after the next screen


Edit : Oops i tell a lie just as i posted i pressed a button and somethin showed up on batman but i cant get it back now.
 
what games are most likely to work ? i think i have all mega/sega cd games so tell em ones to try and i will try them


Found another game that seems full speed :D Bari arm


Edit : For god sake notas its 2:15am i need ot get up at 6am for work !! Why did you not release this in the morning !!

edit: found another one :D
 
I CAN'T BELIEVE IT!!!!!

Heimdall works!!

... and it's a .bin, not an .iso!!!

</OMFG<
 
I have made videso of sonic cd, shining force and bari arm but i need to compress them to put them on youtube and its soooooooooooooooo late but i migth get one up on youtube before i sleep :p
 
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