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1. #MAKAI KINGDOM PSP CHEATDB HOW TO#
2. #MAKAI KINGDOM PSP CHEATDB MOD#
3. #MAKAI KINGDOM PSP CHEATDB CODE#
4. #MAKAI KINGDOM PSP CHEATDB PSP#

Sorry for replying to myself but I wanted to clean up this thread a bit. Probably because I didn't understand the section header table. Do I need to add anything to this for my new section? I tried extending one of the previous sections instead but proved a huge headache and I could never get PPSSPP to boot up the game properly. I gave my section a healthy buffer between other sections, as noted here, assuming I'm understanding what that said.ĮDIT EDIT: I discovered the section header table.

#MAKAI KINGDOM PSP CHEATDB MOD#

There's no physical address to mod against. Is it some sort of alignment error? I have no idea what the alignment value in the header actually means, since it doesn't correspond to what standard ELF documentation states. Couldn't test thoroughly on hardware but it works on PPSSPP and did not cause kernal errors.

#MAKAI KINGDOM PSP CHEATDB CODE#

The relocation of the jump in the regular game code works fine.

#MAKAI KINGDOM PSP CHEATDB PSP#

A real PSP had the kernal error regardless of where I put it. PPSSPP didn't want to use it if I put it at the end, even though I extended the relocation table by 0x20 bytes. Notably I stuck this pretty much smack dab in the middle of the table. My new section is the third one, before the relocation data one. Specifically, I'm getting kernal errors on load, and they don't happen if I don't try to relocate things in my new section. Such tools may be useful in the future, though.ĮDIT: Okay, once again I'm stuck on something that works in an emulator but breaks on hardware. Google is failing me too.Īh I found the RAM addresses I needed a while back (RAM dumping and searching with a script, heh).

#MAKAI KINGDOM PSP CHEATDB HOW TO#

So, any advice/links/etc on how to modify the relocation table? I found a nice tutorial thingy for modifying the elf header, but I'm in the dark here. Hardcoding their address seemed to work fine on an emulator, but perhaps not on hardware.

No idea what I'm doing wrong I tried jpcsp and its debugger also shows the same issue with jals and jumps that PPSSPP does.ĮDITEDIT: Further digging suggest I need to modify the relocation table (?) for my jumps to work correctly. Well the other stuff could potentially cause crashes too, but a simple jump to my hijack area and jump back will work fine on any emulator I've tried but crash my psp. Ex: Hex directly ripped from the eboot for a jal instruction is 0C0177FE, while PPSSPP gives me 0E2187FE.ĮDIT: After some tedious testing (it takes ~4 minutes to compile and upload a change to my psp for testing), it is indeed the jump operations that are making the system crash. Notably, if I use PPSSPP's "copy instruction to hex" feature on the game's jumps, it incorrectly gives a hex value that includes the offset, when looking directly at the hex code in the eboot the offset is not there. The game's regular jumps and such seemed to not include the 0x08804000 offset, and I don't know why.

In order for PPSSPP to actually read the operation correctly I had to format it as 0A32D5D3 (or j 0x08CB574C, including the 0x08804000 offset). Do I need to wait before reading from the HI/LO registers after a mult operation? (though even if that was the case I dunno why it'd crash)Īlso one oddity I noticed is the format of my jump operation. However, it crashes on real hardware, and I don't know why. I just need to find character experience values in the RAM so I can trace the routines.Īny further advice is welcome since I'm new at this. I have PPSSPP and have been looking through its debugger, and its breakpoint functionality and code tracer look like they'll suit my purposes.

Unfortunately the game does not give a numerical value for experience (just a graphical bar), so ideally I'd like something that could find ram addresses that change by particular amounts (say, 400 decimal higher than they were before), not just find addresses that were some value X at one frame and some value Y at another. What I need is some sort of memory tracer/cheat creator.

I don't know MIPS but I can figure it out most likely. I've done a fair bit of Super Nintendo hacking, but almost nothing for any system newer than that. I'm wanting to change how the game works (specifically how the bonus gauge gives bonuses I don't want to have to deploy units for them to get the bonus experience and instead just have it give the bonus to every character in my party), and have been having trouble finding tools to figure out how to do this.