I just took a peek at mine today and it is the 10 rom version - can't wait for this!
frontline High Score Save kit notification list
- Thread starter fatherpain
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souzilla
New member
ok, so I tried it on real hardware and the same thing happens. Even if I change one byte in an empty area of the rom that is not called (and fix the checksum) after about a half our it gets screwey and then locks up. I am going to check out the mame driver and look at the hardware to see if there is some other protection mechanism that is causing this. If I can not find it then this project may not happen.
I worked on this some more this weekend and thought I would send an update.
All the code the free play and coin drop with attract is done.
All the code for the high score table is done.
I did a lot of testing this weekend (MAME) to see if it is ready for the final round of testing on real hardware. One of the tests I do is to let the game run in attract mode for a couple of hours. I never thought of doing this before but a glitch in the Karate Champ high score save kit made me add this to my testing
So, good news and bad news.
The good news is that the code seems pretty close, only one issue found during testing.
The bad news is that it is a doozie.
It turns out that any change to the program code causes the game to get wierd and freeze after about 30 minutes. I reversed all the code one module at a time to try and track it down. Got to the point where I reversed all the changes and just made one tiny change in an empty area of the rom that does not get run and fixed the checksum. The error still happens. Reverse the change and everything workd fine for hours.
So, it looks like if anything is changed (again, fixed the checksum) after about 30 minutes if attrace mode things get wonky and then it freezes. This was all done in MAME and I will test it out on real hardware but I suspect the same thing will happen.
This is the only blocking issue, I will fill everyone in as I make progress.
souzilla
New member
Looks like the frontline pcb has an mcu (68705) and the wild westrn pcb does not.
Anyone have a WW they turned into a frontline and has an eproms burner that can try a couple of things out for me?
THe board looks like this
http://www.crazykong.com/pcbs/T - Z/WildWestern.pcb.html
Anyone have a WW they turned into a frontline and has an eproms burner that can try a couple of things out for me?
THe board looks like this
http://www.crazykong.com/pcbs/T - Z/WildWestern.pcb.html
souzilla
New member
I gave it a couple more tries and could not get it working without some kind of glitch. I tried it on the board without the 68705 and some of the glitches went away but not all of them. I think I am going to put a pin in this one for a bit. I will refund and payments that were sent in advance tonight.
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