Not sure why mame32 isn't letting choose the other bios. Quote from windows.txt in the docs folder:
-bios <biosname>
Specifies the specific BIOS to use with the current game, for game
systems that make use of a BIOS. The -listxml output will list all of
the possible BIOS names for a game. The default is 'default'.And a clip from the first neogeo game in listxml:
<game name="nam1975" sourcefile="neogeo.c" romof="neogeo">
...
<biosset name="euro" description="Europe MVS (Ver. 2)" default="yes"/>
<biosset name="euro-s1" description="Europe MVS (Ver. 1)"/>
<biosset name="us" description="US MVS (Ver. 2?)"/>
<biosset name="us-e" description="US MVS (Ver. 1)"/>
<biosset name="asia" description="Asia MVS (Ver. 3)"/>
<biosset name="japan" description="Japan MVS (Ver. 3)"/>
<biosset name="japan-s2" description="Japan MVS (Ver. 2)"/>
<biosset name="japan-s1" description="Japan MVS (Ver. 1)"/>
Looks like there should be eight choices for the bios, unless the game you're playing wasn't released in all regions. What game(s) have you tried?
Might be a mame32 limit, anybody else help him here? Can you type in the other valid bios (those in the list above)?
Not sure about the UNIbios, either. I don't think official mame or mame32 will use it as it doesn't match the CRCs. Maybe other derivatives have added support, though?
Not much help, sorry.
