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taratata

Uni-Bios in MAME

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Hi all,

I've been trying to boot neogeo games in MAME using the unibios. The only way I've found is renaming it to another bios name (in my case vs-bios.rom)... I was wondering: since MAME runs "hacked" games by default, I thought maybe it could run a hacked bios also without any such tricks.

Not that using this trick is really a problem, but I always get the wrong crc message, which is a little boring in the long run, and I'd prefer to leave the neogeo.zip as it is for other emulators.

Should I add a driver for it or is there a simpler way?

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I always have to rename my Uni-BIOS if i want to use it in NeoRAGEx... That's just the way it is.

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Well, the difference is that MAME uses drivers, and NeoRageX doesn't... (I guess it's the same for BIOSes, please correct me if I'm wrong)

Edited by taratata

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Oops, I should have thought twice before asking this question... I found the answer myself <_<

As a repent :), for those interested here is what I added:

in driver/neogeo.c, under SYSTEM_BIOS_START( neogeo )

	SYSTEM_BIOS_ADD( 7, "uni-bios.12","Unibios MVS (Hack, Ver. 1.2)" )

and under #define NEOGEO_BIOS \

ROM_LOAD16_WORD_SWAP_BIOS( 7, "uni-bios.12",  0x00000, 0x020000, CRC(4fa698e9) ) /* Universe Bios v1.2 (hack) */

and in ui/properties.c in InitializeBIOSUI(HWND hwnd) (near the end, after the other ComboBox_AddString)

ComboBox_AddString(hCtrl,"Unibios MVS (Hack, Ver. 1.2)");

Next time I'll try harder to find the answer before asking the question :P

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and you can disable any other bios in the source simply by adding a // before their names

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my mame compile uses uni-bios.12 along with normal bios

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@weird: yep, but I like keeping the choice <_<

 

@james: that's what I thought I had read in another thread, but how do you enable it? In Default Game Options -> Misc. I only see the 7 normal bioses (0-6)?

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