[SNES] GG Codes Question

[Demonic722]

So I've been reading this document and I was wondering if someone could translate this ARM9 Assembly into the kind of ASM SNES uses (can someone tell me which kind of Assembly the SNES uses?). It's just an example, but I just want to know if it could be done in SNES similar to how it's done in NDS.

/*This Routine does the following...
 *loads a byte into r0 (not defined, just an example)
 *mov's #1 into r1
 *compares that byte in r0 to 1
 *stores r1 into r0 if r2 != 1
 */

ldr r0,Address
ldrb r2,[r0]
mov r1,#0x1
cmp r2,#0x1
strne r1,[r0]
bx lr

[nolberto82]

The SNES only has 3 registers to work with. But for this example you can use the A register.

        LDA $1234   You laod the value stored at 1234 and put into A.
        CMP #$0001  Compare A to 1
        BNE end     Skip if not equal else put 1 into A and store at 1234.

        LDA #$01
        STA $1234
end:
        RTS         return from sub routine aka bx lr

[Demonic722]

Three registers is very unfortunate. I take it that $1234 is an address and the 'A' in "LDA" is a register. You said there are 3 registers so are the other two "LDX" and "LDY"? I'm going to assume there's also a STA, STX, STY for storing as well (correct me if I'm wrong). By the way, is there a compiler for this ASM?

[nolberto82]

Yes 1234 is an address. Unlike the NDS you don't place addresses in registers you just read or write to them. The 3 registers are:

A = Accumalator
Y and X = index registers

There are other registers but this 3 are the most used. If you are serious about it this document should come in handy here.
The assembler you should look for is xkas.

[Abystus]

Three registers is very unfortunate. I take it that $1234 is an address and the 'A' in "LDA" is a register. You said there are 3 registers so are the other two "LDX" and "LDY"? I'm going to assume there's also a STA, STX, STY for storing as well (correct me if I'm wrong). By the way, is there a compiler for this ASM?

Sounds like cake right? Things still get hella complex when the programmer's code looks like he didn't have a clue what he was doing... Also if you get proficient with SNES (should be easy coming from NDS), the NES (same 3 main register layout) will be even easier with the fine debugging capabilities of FCEUX.

[Demonic722]

Yes 1234 is an address. Unlike the NDS you don't place addresses in registers you just read or write to them. The 3 registers are:

A = Accumalator
Y and X = index registers

There are other registers but this 3 are the most used. If you are serious about it this document should come in handy here.
The assembler you should look for is xkas.

Thanks for the info, Nolberto!

Sounds like cake right? Things still get hella complex when the programmer's code looks like he didn't have a clue what he was doing... Also if you get proficient with SNES (should be easy coming from NDS), the NES (same 3 main register layout) will be even easier with the fine debugging capabilities of FCEUX.

It sounds easy and I'll most likely be able to make codes for SNES. I'm still looking for a console to hack other than NDS and even though SNES seems a bit easy, it's probably not for me. Sorry for wasting your time, Nolberto, but I might come back to this later.

Slightly off topic: Does anyone know a console that's pretty good to hack other than SNES? I'm thinking about GameCube, but I'd like to hear some opinions from you guys.

[Abystus]

Thanks for the info, Nolberto!


It sounds easy and I'll most likely be able to make codes for SNES. I'm still looking for a console to hack other than NDS and even though SNES seems a bit easy, it's probably not for me. Sorry for wasting your time, Nolberto, but I might come back to this later.

Slightly off topic: Does anyone know a console that's pretty good to hack other than SNES? I'm thinking about GameCube, but I'd like to hear some opinions from you guys.

I have also been looking to move to a new system, but it seems when I try I am thwarted on a regular basis. I figure either the Wii, NDS, or GBA would be great for me. I assume your using an emulator to hack the NDS correct?

[Demonic722]

I have also been looking to move to a new system, but it seems when I try I am thwarted on a regular basis. I figure either the Wii, NDS, or GBA would be great for me. I assume your using an emulator to hack the NDS correct?

I might hack either GBA or GCN then. For NDS, I use DesMuMe's emulator and it comes with a built in cheat searcher/RAM viewer. For debugging, I use No$GBA's Debugger. The majority of the new ROMs that are leaked needs to be encrypted with this tool so you can run the game through BIOS on No$GBA's Debugger, but they work fine on Desmume.

[Abystus]

I might hack either GBA or GCN then. For NDS, I use DesMuMe's emulator and it comes with a built in cheat searcher/RAM viewer. For debugging, I use No$GBA's Debugger. The majority of the new ROMs that are leaked needs to be encrypted with this tool so you can run the game through BIOS on No$GBA's Debugger, but they work fine on Desmume.

Thanks for the info. I will have to look into the Desmume emulator along with getting my hands on a copy of No$GBA (it's donate only right?). I figure it's going to be either GBA or NDS, because the Wii emulator (dolphin) currently has major slowdown (less than 1 fps) issues while debugging games. Hopefully my journey turns out to have a happy ending... lol.

[Demonic722]

Thanks for the info. I will have to look into the Desmume emulator along with getting my hands on a copy of No$GBA (it's donate only right?).

Not at all. Some good sir leaked the debugger. On that link I sent you, the No$GBA Debugger is on that site, as well as http://www.emuparadise.me/. If all fails, I'll send the copies I have your way if you want. The emulator alone (minus the debugger) is on a bunch of sites.

I figure it's going to be either GBA or NDS, because the Wii emulator (dolphin) currently has major slowdown (less than 1 fps) issues while debugging games. Hopefully my journey turns out to have a happy ending... lol.

I can't work with 1 FPS. My computer is slow enough running most emulators. Wii hacking is out of the question for me, heh. I'll be over in the NDS, GBA, and/or GCN Hacking scene.

[Helder]

If you start NGC hacking count me in, I tried my had a while back with dolphin but it wasnt all that great unless someone knows a good emulator for NGC or if there are any recent versions of Dolphin with better support for games and hacking.

[Demonic722]

Is anyone even hacking the Gamecube? It seems like there aren't really any codes for that system or maybe I'm not looking in the right places. I should go out and try to find an Action Replay for my old GameCube.

[Helder]

I know there were plenty of codes people made but most of the standard came from CodeJunkies.