mikey
Marked Wolf
- Joined
- Jun 19, 2012
- Posts
- 215
I have a Metal Slug MVS boot where the sound cuts out part way through the second level. In the UNIBIOS jukebox all the music plays fine. I have replaced the M ROM, and the problem is still there. The only big difference I noticed is that the cartridge uses 4 27c160's for the V ROMs, where the MAME dump has two 4MB V ROM files. I know the files were split because you cannot use a 27c322 for V ROMs as it is 16 bit only. I just am not sure if this is some sort of addressing or bankswitching issue due to the roms being split up? Should there be some extra decoding that is not happening? I have tried to learn more about bankswitching, but am finding it hard to answer this question for myself.
As a side note, if splitting files to use over multiple eproms is possible, is it also possible to load multiple ROM files onto a single eprom to save chips? For example, if I had a game that used two 1MB V ROMs or four 1MB C ROMs, could I put the V1 and V2 on a 27c160, or the C1, C2, C3, and C4 files all onto a 27c322 and have it work? (obviously the PROG or CHA board would have to support EPROMs that size). Just curious...
Thanks! Sorry if this has been covered, I tried to search ahead but couldn't find this info.
As a side note, if splitting files to use over multiple eproms is possible, is it also possible to load multiple ROM files onto a single eprom to save chips? For example, if I had a game that used two 1MB V ROMs or four 1MB C ROMs, could I put the V1 and V2 on a 27c160, or the C1, C2, C3, and C4 files all onto a 27c322 and have it work? (obviously the PROG or CHA board would have to support EPROMs that size). Just curious...
Thanks! Sorry if this has been covered, I tried to search ahead but couldn't find this info.