I've been trying to fix ActionReplay on TG68 based minimigs, no luck so far. After reading how the AR is supposed to work, it seemed that disabling the fast RAM (and the autoconfig) would do the trick, but it doesn't help. BTW, does anybody know if ActionReplay ever worked on TG68 - the old one? Fixing this will definitely require more work (if at all possible).
In the meantime, I took a look at why some games fail on the TG68-based minimigs. I tried some other monitors, like HRTmon and ThrillKill (I think one of them could be made ROMable, to be used instead of ActionReplay, which AFAIK only works with 68000 and KS<2.1). Anyway, I'm looking for someone with experience with either mentioned monitor, as I'm having some problems debugging (mostly cracked) games.
First of all, what is the proper way to setup the monitor - point the NMI vector to the monitor, setup traps on other IRQs, memory location watch, ...?
Second, what is the proper way to update the NMi vector - every time I try to update the NMI vector location (I think it's $7c), after exiting and entering the monitor, the memory location gets reset to some $00f8xxxx location. Can this be done at all in this way?
Third, are these monitors even usable for debugging games, or do the games simply overwrite the NMI & other vectors, thereby effectively disabling the monitor re-entry?
Oh and fourth, does anybody have any experience with WinUAE & monitors? It seems that the NMI button only works if you use the builtin debugger.
Any help would be appreciated!
** my minimig builds: http://somuch.guru/ **