Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
02992 Misc. Minor Always Feb 28, 2009, 19:06 Jul 5, 2016, 00:02
Tester Reyn View Status Public Platform MAMEUI
Assigned To Resolution Fixed OS
Status [?] Resolved Driver neodriv.hxx
Version 0.129u5 Fixed in Version 0.154 Build Normal
Summary 02992: Mame emulates 6-Slot hardware. All slots are set to "cartridge inserted".
Description Mame emulates 6-Slot hardware.
In Mame, only Slot 1 can be "equipped".
All slots are set to "cartridge inserted / equipped".
On real hardware (tested with 2-Slot) only the equipped is set active (highlighted in Universe Bios).
The not equipped slot is set not active (darkened / greyed out in Universe Bios).
Steps To Reproduce Load a game with Universe Bios 1.x - 2.x

On system start press and hold buttons A+B+C.

Select Gamecart CRC check

Slots 1 to 6 are now selectable and all are set "cartridge inserted / equipped".
Additional Information
Flags Verified with Original
Regression Version
Affected Sets / Systems
Attached Files
jpg file icon real_hardware.JPG (41,009 bytes) Feb 28, 2009, 19:06
There are no relationsihp linked to this issue.
User avatar
Senior Tester
Mar 2, 2009, 07:47
I guess the problem is that MAME doesn't have any kind of banking to select a different cart, therefore when the hardware asks for another cart, it will always see the same one in every slot.
User avatar
Mar 8, 2009, 19:43
edited on: Mar 8, 2009, 19:44
Found some related info in FBA Neo-Geo source:

 * bit 6 of memory location 0x300081
 * = 0 -> 1/2 slot MVS
 * = 1 + bit 5 of 0x320001 = 0 -> 4 slot MVS
 * = 1 -> 6 slot MVS
 * On MVS hardware with multiple slots, address 0x380021 is used to select the
 * active slot.

User avatar
Nov 4, 2014, 10:45
Is this still the case after multislot support has been added?
User avatar
Jul 4, 2016, 06:05
Seems like this issue is resolved.

mame64 neogeo -cart1 blazstar -cart2 mslug -cart3 kotm -cart4 nitd -cart5 pulstar -cart6 samsho
User avatar
Senior Tester
Jul 5, 2016, 00:02
'Fixed in Version' is 0.154

MAME 0.154: NeoGeo (multi)slot work [S. Smith, David Haywood]