chris2ferz

What is the best way to tell if a new driver will work in Mameox? I have the ability to re-compile mameox.084b3 with a driver from a game I want to play which wasn't added to mame until.086u5 The driver is nmg5.c for New Multi Game 5 I'm figuring IF the driver doesn't depend on any changes to the mame core since the last mameox release then it would work ok otherwise it would fail to run or be unplayable due to inputs or mappings. I was going to compile from the mameox.084b3 sources and jus add the driver and any #includes for that game but I don't want to waste the time in doing this if there's a way to tell if it's not going to work based on something i could check first. Any help would be GREAT - thanks

Yes!!! I have decrypted the roms and I have it working now. Thanks to all who tried to help and yes prican25 it was related to the driver. When i looked closer i could see in the source code where it had an additional init string which the other Crazy Kong roms didn't need. This was due to encryption and then it all made sense. I never expected for a rom of that era to have been encrypted so i didn't even check for that. Thanks again I knew it was doing something different but was just looking in the wrong place Happy gaming

ah HA! i've come a bit closer in finding out what's wrong with the ckongb roms I think the cpu1 roms are encrypted which would explain why they are so different than the roms of the parent ckong. The roms in Big Kong do not appear to be encrypted which would explain why they worked when i renamed them and loaded them from the parent rom. I have found this entry in the source code for ckongb static DRIVER_INIT( ckongb ) { int A; unsigned char *rom = memory_region(REGION_CPU1); for (A = 0x0000;A < 0x6000;A++) /* all the program ROMs are encrypted */ { rom[A] = rom[A] ^ 0xf0; } } So if i could decrypt 6 rom files then i'd be able to play this game in mame.084. I know there are some mame experts that would be able to tell me how to do this. So please help - i'm this close

yeah i knew i was going to need some luck to actually find someone who liked that version of crazy kong and also had mamox.84 I have tried some things but so far no luck. I know the emulator is doing something different with the romset because the same romset will work with both the original crazy kong and crazy kong (alternate levels) depending on what the emulator "thinks" it's loading. I feel it's something rather simple because it's still using the crazy climber driver so i'm thinking there's not a difference there. Also I have gotten Big Kong to work and it came out much later in version.95. The bad luck is that the game was added right after mamox leaves off which is a shame because it "almost" made it I'm still thinking there is a way to modify the rom so that it will load and play properly just like big kong does. this issue is not specific to mamox - it will also occur in the other ports so that's why i posted it here. It's jus a problem in mamox because there is no update for that port like some of the others to allow the game to load

I would greatly appreciate the help of anyone who knows how to get Crazy Kong (alternate levels) ckongb to run on mameox.084b3 i've gotten Big Kong to work which wasn't added till mame.95 Mameox.84b3 won't detect Big Kong (bigkong.zip) and since Crazy Kong is a "simple" rom in comparison to most of the games mame emulates, i was able to see the Big Kong rom had similar file names to that of its parent rom ckong. I renamed the files in bigkong and placed them in ckong.zip. MAMEOX complains about the CRC's of the replaced files but the game does load and is fully playable. Crazy Kong (alternate levels) was not added to mame until right after the last MAMEOX release (.84b3) so it's not detected. It also has similar file names to ckong however I have been unable to get the game to load properly with the renamed files. A video glitch is displayed and the game won't play On the PC version of mame - I have gotten my modified conkongb romset to load fine if mame expects the ckongb rom however the same romset will not load if mame expects it to be ckong I feel i am close to getting it to work and i'm thinking possibly the roms need to be in a different order Please help - Thanks or if there is another approach to doing this then i'd like to know

I would greatly appreciate the help of anyone who knows how to get Crazy Kong (alternate levels) ckongb to run on mameox.084b3 i've gotten Big Kong to work which wasn't added till mame.95 Mameox.84b3 won't detect Big Kong (bigkong.zip) and since Crazy Kong is a "simple" rom in comparison to most of the games mame emulates, i was able to see the Big Kong rom had similar file names to that of its parent rom ckong. I renamed the files in bigkong and placed them in ckong.zip. MAMEOX complains about the CRC's of the replaced files but the game does load and is fully playable. Crazy Kong (alternate levels) was not added to mame until right after the last MAMEOX release (.84b3) so it's not detected. It also has similar file names to ckong however I have been unable to get the game to load properly with the renamed files. A video glitch is displayed and the game won't play On the PC version of mame - I have gotten my modified conkongb romset to load fine if mame expects the ckongb rom however the same romset will not load if mame expects it to be ckong I feel i am close to getting it to work and i'm thinking possibly the roms need to be in a different order Please help - Thanks or if there is another approach to doing this then i'd like to know