PS-4

[Roman]

For DevSter. Whether it to you was possible to change in game PhantasyStar-4 codes $ 200000 in codes $ 300000?

( i'm trying to change the ram address from $ 200000 to $ 300000 so i'll be able to save on my srams without any other external logic).

And as other games similar in volume 24 M?

[oompa loompa]

i started on this type of hack, but i never finished it. didn't finish it because of the lack of interest, and the fact that building the hardware and my own cartridge was more fun =)

it isn't very hard to hack the rom to change sram accesses from $200000 to $300000. the first thing i started doing was looking for anything with the special hardware sram enable bit, $A15xxx (xxx=something i forgot, its in docs somewhere). dissassemble code around that region and you should hit jackpot after a day or two

[Roman]

Thanks. Still question - whether has sense to translate codes $200000 in $400000 (with hardware changes in cartridge)? Whether it will function on the real console SEGA?

[oompa loompa]

what?? i don't understand what you've posted

[Roman]

Sorry. I have checked game PS-4 in modify cartridge at replacement of a code $200000 on $300000 and $400000. In the first case all is saved OK, in the second case is not saved.

[oompa loompa]

cartridge space is not in $400000