Search found 3 matches

by anderson110
Mon May 17, 2021 6:44 am
Forum: M.A.M.E. "Arcade" Cheat Requests
Topic: [galaga] help with finding memory address of score
Replies: 2
Views: 459

Re: [galaga] help with finding memory address of score

I think I may have figured out one way to get at this. The screen RAM addresses for the score digits are at: 0x83F8 for the 1's place 0x83F9 for the 10's place and so on. Values of 0-9 map to themselves, and 24 is the code for a blank. I'm not sure if the value is stored somewhere else as well, or i...
by anderson110
Mon May 17, 2021 6:05 am
Forum: M.A.M.E. "Arcade" Cheat Requests
Topic: [galaga] help with finding memory address of score
Replies: 2
Views: 459

Re: [galaga] help with finding memory address of score

I thought it might be a useful strategy to figure out the video RAM address where the score is written, and then use a watchpoint to try to reverse engineer the code when that video RAM gets written, but I haven't been successful in finding that either. I can find most locations on the screen around...
by anderson110
Mon May 17, 2021 5:17 am
Forum: M.A.M.E. "Arcade" Cheat Requests
Topic: [galaga] help with finding memory address of score
Replies: 2
Views: 459

[galaga] help with finding memory address of score

I'm trying to figure out the memory address that holds the score in MAME galaga. I've been able to use the cheat debugger to find that the number of shots are stored at 9846, and the number of hits are stored at 9844, but I have had no luck turning up the location of the actual score. I've been look...