[Help] Pointer Code Question

[stonecold]

So I know how to make easy codes. And can do basic pointer codes. No mips and subs for me.

Recently start to use cw so maybe you guys can point me in the right direction.

My question is about this:

Say I make my code like so:
8 bit pointer code cheat
0x6aaaaaaa 0x000000vv
0x00000001 0x00000iii

So yah "a" is my pointer and I got my value v that I want to write in.
And yah it will go to location the pointer points to and add the offset iii to the location it finds. And cheat works fine.

But what I want to do is introduce a test code into the above just like the one that exists in non pointer cheats. How can I do this?

0aaaaaaa 0x202000dd

Like I want to use this in my code but I don't think you can introduce it in the above scenario because of the format guidelines on pointer codes.

Maybe I want check what the value at the offset is first and if it less than a certain amount dd I want to set it to some other value otherwise use vv.

One of the code types on the wiki looked promising the copy byte Extra pointer line code.
0x1sssssss 0×00000000

I figured I could then just watch and monitor that destination area and all would be well. But then I relalize I will get the same problem because that code type doesn't copy to a static area, destination is based on an additional offset and all the test codes seem to need static address.

Thanks Let me know what options I have if any or if there is a simpler way to do what I try to describe.

[4m8IoN]

I can feel your frustrations here.
Back on my Yu-Gi-Oh! GX project. I was in the same position.
Sadly, I never came to a good conclusion back then.

But I have an idea that might help you.
First copy the pointer you are going to use somewhere into unused nonDMA space.
Now create a Pointer next to it that point to the same unused Area

Edit:
... just remebered that this wasn't possible because the pointer copy did work with offsets...
I must be really really tired to forget that one.

The only other solution I have is probably to difficult.
You would have to write a little asm snippet and somehow inject it in the game.
And that's gonna be tough.

Well I could help you on the ASM part.
But this still wouldn't help you to get it executed.

[stonecold]

Hey thanks for the advice 4m8IoN. You and your fans do good work in that monster hunter thread. You're a big star!

Glad to at least know that I'm not alone with this issue. I think the easiest way to fix this is to get weltall to add a code type to do this. That would benefit many I think. He seems to have added various code types to enhance cw over time. Perhaps he plans to add such new test codes. I chat with him couple times way back (years ago). He used to hang in an irc chan with the Lan.st folks. But he don't seem to be active on cw anymore, unless I don't see him. Do you or anyone else maybe know where he may be so I can grab his ear for a second.

I sure would like to learn some assembly and try to write a sub in the meanwhile as I put off that part of my cheat training for far too long. I'm more of the learn by doing sort of type rather than the read up on the subject matter type. I understand the learning curve is extremely steep. If you have some simple tuts for psp you can point me to preferable a small example maybe I can spin my wheels on that until we hear something from weltall. And no I don't consider that HPD a simple place to start

[4m8IoN]

Nah, I'm not a star
The people who took my advices and learned from them are the real stars of the thread.
I don't even want to think about how many codes I would have needed to
convert/create if they weren't around.
Especially albertoink seems to be on fire lately

I wouldn't get your hopes up with the code type change.
afaik weltall hasn't logged in here for a looo00ooong time.
And even if he returns I doubt he will add a new CT.
I'd say that throwing out pointercopy and maybe the 'blockercode'
would make enough room for an execute ASM@ code.
But then again how many are really willing to learn assembler.

He might still hang around in the ps2dev.org forum.
But I really doubt you're going to get a hold of him
Anyways, good luck

Back to Assembler:
Learning it by doing is certainly not easy.
You need to understand the basics of this low level programming language.
And this is not something the average user can pick up with the
'learning by doing' method. Without reading and reading and reading
you probably won't be able to grasp the concept. :whistling
I learned it on emulators for old microprocessors.
(But that has nothing to do with PSPasm)

to see it in action the HPD is probably a bit too big to understand
it just by looking at it with the CWCheat disassm view.
WISH might be the better choice. (It has only 3 very similar small parts)
It's not that hard to understand especially if you have the game
and can see what it does if it gets executed (create a list below it)

If you have researched it enough you can also try to
extend it with something else and see if you can create a snippet that does what you want.

lui $v0, 0x9FF              v0=09FF0000
ori $v0, $v0, 0xABC0        v0=09FFABC0  (load adress to pointer into v0)
nop
lw $a1, 0($v0)              a1=????????  (load the pointer into a1)
nop
lh $t1, 10($a1)             t1=????      (load 16bit value @ a1+10 into t1)
slti $a2, $t1, 0x7          a2=??        (0 if t1 greater than 6 else 1)
beqz $a2, [+4]              if a2==0 skip next 3 lines
nop
li $a2, 0x63                a2=63        (load new value into a2)
sh $a2, 10($a1)             write 16bit value from a2 @ a1+10
j [exit]                    goto (whatever)
nop

Something like this is probably what you are looking for.
(Let's hope I didn't make a mistake here):roll::

[jungletek]

Nice codecave. I need to learn me some mips so I can start writing my own...