mirror of
https://github.com/holub/mame
synced 2025-05-30 09:33:05 +03:00
![]() Remember me, I sent you the Aliens ASIAN EPROM dump a few days ago? Anyhow, I've just been repairing an original Data East Robocop boardset and noticed that only the PROM at 2A on the ROM board had been dumped - the two PROMs on the CPU board were undumped. So I desoldered those two from my boardset and dumped them for you. They didn't have labels on them so the attached filename dumps are made up of the type of PROM followed by the IC location on the PCB. I also noticed that the filename of the already dumped PROM at 2A (which I verified okay against mine) didn't include the PROM type, although it's mentioned here: http://maws.mameworld.info/maws/driverinfo/dec0.c so I renamed that file and re-sent it. Up to you or the MAME team to decide whether to change the name, although I guess it's no big deal, although it makes life a bit easier for anyone repairing a boardset and wishing to know the PROM type (the boardset itself is screened wrong I believe - for the PROM at 2A it's screened as MB7130, yet the PROM used (and mentioned on the above page) is in fact an MB7124). For further info, this is what happens when the relevant PROMs are removed from the board (one at a time!): MB7122E (EN-24) PROM at 17E on CPU board -- Removing this causes all text to disappear along with the sprites and the foreground layer of the background graphics to be absent (but the background layer is still visible) MB7116E at 12C on CPU board -- Removing this causes all sprites to disappear MB7124E at 12A on ROM Board (although the board is screened as MB7130) -- Removing this causes the display to disappear, although coining up makes the correct text appear (and sound to play), intro graphics appear on starting a game, then nothing, it won't even play blind (although the coin up sound still plays on coin insert) There's also a PAL on the ROM board but unfortunately it's protection fuse is of course blown so I can't read it. Ah well. If you need to credit me when these are incorporated into the code, just put in my name Irongiant Hope all this helps. Cheers, Phil |
||
---|---|---|
docs | ||
src | ||
.gitattributes | ||
makefile |