5 ms·
Very impressive! I once had the ability to find infinite lives, and other cheats, in Commodore 64 games using just the Action Replay cartridge's machine code m
by zandorg 17y ago
Very impressive!
I once had the ability to find infinite lives, and other cheats, in Commodore 64 games using just the Action Replay cartridge's machine code monitor. I'm not as hot at it as I used to be, though.
One important function is to be able to hop off up the CPU address stack to find more important functions higher up (so you're in a "Print a letter" subroutine, called by a "Print a word" subroutine). This isn't in ICU yet.
- Vivtek 17y agoI spent a summer disassembling the code for Bolo on the Apple ][e, giving myself infinite lives or invulnerability, dissolving the maze edges and wandering around in general memory until I segfaulted the machine, disabling the enemy tanks by forbidding them from turning left - it was fantastic! I had printed the entire dump on green bar to do it. Remember green bar? I'll bet that printout is still at my Mom's in the attic somewhere.
- TeHCrAzY 17y agoI remember a program "ArtMoney" or some such from my early childhood. It would take snapshots of memory for a particular process, and allow you to search for a particular value. It supported a differential analyisis, such that you could enter the value of an easily controled variable (say HP), and then search for it, change the game state, search again, and narrow down the range of possible memory addresses.