Emulator Cheats

I have temporarily suspended the development of experimental code for focus on a more useful cheat window. For now I have created a simple window where you can see a list of active cheat. Do not expect anything of special, is just a test to learn how MAME manage the windows. http://www.megaupload.co...

cheatoption is a good solution for simplify the cheatinit (some function are used rarely). If I have understood the new cheatinit can be ci <address>,<length> or ci fast. In the next days I will make the changes. If you have new ideas, they are welcome.

I have forgotten the diff :lol: :lol: The cheatrange is not removed, is replaced with the cheatinit, now cheatinit is cumulative (for reset the system uses cheatreset), you can add multiple cpu and space to same search. ci ub,0,fast add all RAM region of the first CPU ci ub,1,2000,1000 add the range...

I have made some experimental change to the system: - convert all code to be relative to memory regions - add new command cheatinfo[cinfo] for show regions state - add new command cheatregione[cre] and cheatregiond[crd] for enable/disable a region - changed the cheatinit command, ci <sign><width><sw...

I changed the auto-detecting to initialize the RAM and RAMBANK, custom handled regions is initialized only when not there are regions of RAM. I think this solves many of the problems reported in last days, however, when you specify a range is initialized without any control (including ROM). http://w...

Aaron has fixed the problem making all cheats search in physical addresses and adding the prefixes 'p' (physical) and 'l' (logical) to specify the type of address. I think this is not mandatory but only a specification for remove some ambiguous situations. Example: ppb@1000 = physical program space ...

After some test I have noted that the result in seattle driver is not the logical address, but is the physical address this is a problem because it needs to use the raw patch. For now the best way for search cheats on seattle.c is force the correct range ("ci xx, 0x80000000, 0x7fffff"). I ...

Don't worry I have tried to edit and have accidentally delete it. (I need to sleep)
However I think to have resolved, the problem is the address translation inside the debugger, not in the CPU, now all seem work.

http://www.megaupload.com/?d=GV08BVV3

This is a diff for remove the mirrors from the search, before submit to mamedev, I think is better make some test, I have tested only on gba and psx.

http://www.megaupload.com/?d=EERQ79X3

@asper I think that Pugsy has reason and however would not be approved from the mamedevs. @Pugsy You are right, it needs to look a system for remove the mirrors from the search. For the gba problem the fast solution is make a file with the desired command (cheatinit + cheatrange) saving the file wit...

Of course, I am Italian.

I don't believe is possible to make a menu like the old version, because this function is inside the debugger and if MAME is loaded without the debugger this function is not available.

Start mame with -debug command (or change debug to 1 in mame.ini), start to play, when you want initialize the cheat go in debugger and write "ci" (for more information write "help cheatinit"), now all memory of first CPU is initialized, continue to play, when want do a search go...

I have added the function to look for byte, word, dword and qword signed and unsigned.

http://www.megaupload.com/?d=JKTBDQ57

You are right, I have submitted the diff.

Thanks Pugsy, my English is very bad.

I have integrated help.txt in the code and some tests on mess.

http://www.megaupload.com/?d=8ZBQJ7TJ

new update:
- add new command cheatrange for add multiple range to the cheat system
- minor change and fix
thanks to Pugsy and stephh for their suggestions

http://www.megaupload.com/?d=O5IH62DZ

@Pugsy 1: you are right the first value is more important, but however the format "ADD33551 START=05, CURRENT=02" is the best 2: do an automatic cheatlist when active byte are <= 5 is useful and is very easy to do 3: the control if the param[1] is a valid number is important, the others si...

The last diff is in the zip of last update.

now only writable bytes are initialized, less resource required (especially on 32 bit cpu).

http://www.megaupload.com/?d=JDKO7B9D