Submitted by Luiskiko
This zip file contains 6 PAL’s from this board
Tetris bootleg PAL dumps
PAL Updates
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May 052012
Tokio / Scramble bootleg PAL
PAL Updates
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May 052012
First of many…
PAL16L8 dump from this board
Submitted by Luiskiko
A lot of PAL dumps
PAL Updates
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May 052012
I was recently sent a big archive of PAL dumps by a nice guy called Luiskiko.
here is a list of games included:
Arabian Magic
Black Tiger bootleg
Cabal bootleg
Captain Commando bootleg
Choplifter bootleg
Cobra Command bootleg
Final Fight bootleg
Ghosts and Goblins bootleg
Gladiator bootleg
Growl
Hard Head bootleg
Jackie Chan
Mortal Kombat bootleg
Mustang bootleg
Mutant Fighter
New Fantasy
Prehistoric Isle
Prisoners of War
Punisher bootleg
Rastan bootleg
Shinobi bootleg
Super Burger Time
Super Shanghai
Terra Cresta
Tetris bootleg
Toki – Juju
Tokio bootleg
As there is so many ill be posting them up 1 game at a time
I have not tested any of these, please let me know if you use any of them and thanks again to Luiskiko
May 022012
Picked up a pedestal and rifle from Silent Scope the other day and also got with it Silent Scope 1 and 2.
Silent Scope 1 had already had its NVRAM replaced and was working.
SS2 had unfortunately already suicided. I burned a new M48T58Y RTC RAM and fitted it but it didn’t initially work. It turned out that one of my solder points wasn’t good enough and simply re-flowing sorted it out but not before I delved into the contents of the RAM chip itself.
My initial thought was that the dump in MAME was for a different region but I don’t think this is the case. The contents of this RAM chip consist of some text 14 bytes long followed by a 2 byte checksum. The game code copies the contents of this RAM and its checksum into memory, works out the checksum again and compares it to the one in the chip, if it matches it goes ahead and boots. I proved this by writing a small program to calculate the sum and writing my own replacement.
The contents of this chip do not affect any on screen text.
All up and running…………..until
Playing SS1 the game froze and gave me a BACKUP RAM fault and rebooted. I first check the power supply which was a spliced ATX PSU and found the voltage to be around 4.6v. I replaced this power supply and no more errors regardless of how much i played.
Now it really is all up and running and I’m quite happy with it.
Apr 282012
PC18 from the Jamma+ forum was round yesterday with his Mortal Kombat 2 board which appeared to have a few little faults.
1. The game crashed just before he completed it
2. No fatalities could be performed
3. Some sound effects were missing
We fired it up on the test bench and I saw for myself the second 2 issues. We could not test the crashing issue because I’m crap and Megadrive joypads with only 3 buttons are no good for playing MK2 arcade version!
First thing we did was check the test menu DIP switch settings as fatalities can be turned off but they were set to ON.
Second, check all the ROM’s against MAME. All checked out OK.
A little bit of head scratching later we checked the boards operation against MAME’s operation. This board was running on version 1.1 and sure enough the sounds were missing in MAME too.
At this point we decided to check with Google and it turns out that in the early versions of MK2, there were all sorts missing from the game including most of the fatalities, some sounds and the endings too (might be why the game crashed at the end?).
As most of the ROM chips are for graphics we just erased the program EPROM’s and burned version 3.1 ROM’s. The game now does all sorts of stuff that it never used to do.
We still couldn’t check the crashing issue but hopefully that’s sorted too