 |
Cheat Engine
The Official Site of Cheat Engine
|
| View previous topic :: View next topic |
| Author |
Message |
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
 Posted: Mon Aug 11, 2008 5:05 pm Post subject: Auto Asm Question. |
 |
|
Noobie question...
What is a label in autoasm?
And if you remove it from a script will it affect it?
|
|
| Back to top |
|
 |
GMZorita
Grandmaster Cheater Supreme
![]() Reputation: 0
Joined: 21 Mar 2007
Posts: 1361
|
|
| Back to top |
|
|
Noz3001
I'm a spammer
 Reputation: 26
Joined: 29 May 2006
Posts: 6220
Location: /dev/null
|
| Posted: Mon Aug 11, 2008 5:39 pm Post subject: |
|
|
Just defines a label.
|
|
| Back to top |
|
|
GMZorita
Grandmaster Cheater Supreme
![]() Reputation: 0
Joined: 21 Mar 2007
Posts: 1361
|
| Posted: Mon Aug 11, 2008 5:48 pm Post subject: Re: Auto Asm Question. |
|
|
| dnsi0 wrote: | Noobie question...
What is a label in autoasm?
And if you remove it from a script will it affect it? |
label is most likely a placeholder for the address.
like i set
| Code: |
label(lol)
400000:
nop
lol:
|
lol is 400001
Understand what i mean :s ?
_________________
Gone |
|
| Back to top |
|
|
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
| Posted: Mon Aug 11, 2008 5:54 pm Post subject: |
|
|
no I dont get it. You didn't even declare what lol would be.
If I removed that, will if affect what the script is gonna do?
|
|
| Back to top |
|
|
Noz3001
I'm a spammer
Reputation: 26
Joined: 29 May 2006
Posts: 6220
Location: /dev/null
|
| Posted: Mon Aug 11, 2008 5:56 pm Post subject: |
|
|
| dnsi0 wrote: | no I dont get it. You didn't even declare what lol would be.
If I removed that, will if affect what the script is gonna do? |
The script won't be run if it doesn't know what it is.
|
|
| Back to top |
|
|
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
| Posted: Mon Aug 11, 2008 8:06 pm Post subject: |
|
|
So can you see if this script converted will work?
SS Mouse Tele with key press shift to tele -> tick script and tele.
Original:
| Code: | [Enable]
alloc(MouseTele,128)
label(TeleOn)
label(DoTele)
label(Normal)
label(Return)
MouseTele:
push eax
mov eax,[00965c88]
mov eax,[eax+9B4]
cmp eax,c
pop eax
jae TeleOn
jmp Normal
TeleOn:
pushad
mov eax,[00965c88]
mov eax,[eax+978]
push [eax+88]
push [eax+84]
call DoTele
popad
jmp Return
DoTele:
push [esp+8]
push [esp+8]
mov eax,[00965B38]
mov eax,[eax+D38]
push eax
mov eax,[eax]
call [eax+40]
ret 8
Normal:
mov eax,[eax+000009b4]
jmp Return
0073A27F:
jmp MouseTele
nop
Return:
[disable]
dealloc(MouseTele)
0073A27F:
db 8B 80 B4 09 00 00 |
Me Fixing It:
| Code: | [Enable]
alloc(MouseTele,128)
alloc(TeleOn,30)
alloc(DoTele,28)
TeleOn:
pushad
mov eax,[00965c88]
mov eax,[eax+978]
push [eax+88]
push [eax+84]
call DoTele
popad
DoTele:
push [esp+8]
push [esp+8]
mov eax,[00965B38]
mov eax,[eax+D38]
push eax
mov eax,[eax]
call [eax+40]
ret 8
0073A27F:
jmp TeleOn
nop
Return:
[disable]
dealloc(MouseTele)
0073A27F:
db 8B 80 B4 09 00 00 |
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Mon Aug 11, 2008 9:37 pm Post subject: |
|
|
| dnsi0 wrote: | So can you see if this script converted will work?
SS Mouse Tele with key press shift to tele -> tick script and tele.
Original:
| Code: | [Enable]
alloc(MouseTele,128)
label(TeleOn)
label(DoTele)
label(Normal)
label(Return)
MouseTele:
push eax
mov eax,[00965c88]
mov eax,[eax+9B4]
cmp eax,c
pop eax
jae TeleOn
jmp Normal
TeleOn:
pushad
mov eax,[00965c88]
mov eax,[eax+978]
push [eax+88]
push [eax+84]
call DoTele
popad
jmp Return
DoTele:
push [esp+8]
push [esp+8]
mov eax,[00965B38]
mov eax,[eax+D38]
push eax
mov eax,[eax]
call [eax+40]
ret 8
Normal:
mov eax,[eax+000009b4]
jmp Return
0073A27F:
jmp MouseTele
nop
Return:
[disable]
dealloc(MouseTele)
0073A27F:
db 8B 80 B4 09 00 00 |
Me Fixing It:
| Code: | [Enable]
alloc(MouseTele,128)
alloc(TeleOn,30)
alloc(DoTele,28)
TeleOn:
pushad
mov eax,[00965c88]
mov eax,[eax+978]
push [eax+88]
push [eax+84]
call DoTele
popad
DoTele:
push [esp+8]
push [esp+8]
mov eax,[00965B38]
mov eax,[eax+D38]
push eax
mov eax,[eax]
call [eax+40]
ret 8
0073A27F:
jmp TeleOn
nop
Return:
[disable]
dealloc(MouseTele)
0073A27F:
db 8B 80 B4 09 00 00 |
|
I'm not entirely sure, but a label just defines a point in the code. Like in c++, sometimes you have labels and use goto (label here);. For AA the top script works because basically the whole thing is the Mousetele procedure broken up into organized sections using labels. The second one would probably work fine, but I think you should decrease the amount you allocate to Mousetele. Sorry if this is confusing lol.
EDIT: uh just take away the alloc(mousetele,128) part since it looks like your just enabling it.
|
|
| Back to top |
|
|
Uzeil
Moderator
 Reputation: 6
Joined: 21 Oct 2006
Posts: 2411
|
| Posted: Tue Aug 12, 2008 4:17 am Post subject: |
|
|
A label is just a place in code.
Here's my way of explaining it through the example above.
| Code: | alloc(MouseTele,128)
label(TeleOn)
label(DoTele)
label(Normal)
label(Return) |
This is all that says:
Make room for up to 128 bytes of code, starting with an address I'll refer to as MouseTele.
Understand that when I say TeleOn, I'm refering to the point in code where I say 'TeleOn:'
" " where I say 'DoTele:'
" " Normal:
" " Return:
I don't know what your 'home' language is, so I'm restricting what I say to English(by 'home' language I was referring to coding, not Spanish or anything).
Labels are just that, labels for a point in code(labels, names, placeholders, 'label' is an english word, not 'coder lingo' or anything alien).
As for your adjustment(notice I called it an adjustment, not a 'fix')...
First of all, I'm ignoring the amounts you allocated. For all I know, you really did count out the number of bytes that code will take up and tried to work with it assuming they'd be allocated on top of eachother.
Issue: You took out the 'jmp Return' and the 'label(Return)', but left the 'Return:' at the end of the hook(lingo, just look for the 'Return:') Unless you want it to popad then go straight to DoTele, you're messing up. (And, even if you want it to go straight to DoTele, there is a high probability that after that 'popad' is what I'll call 'blank code'. This can either be a series of 00 00 or numbers counting up(depends on the CE version) like 11 22 33 or 12 34 56, haha.) - which is NOT something you want your code to run into).
Issue: You alloc but don't dealloc. As you turn the script on and off, you're just taking up more and more memory.
and uh
"The second one would probably work fine"
WOULD NOT, LOL.
(Too much serious. Couldn't not do it.)
_________________
|
|
| Back to top |
|
|
Drops
Advanced Cheater
![]() Reputation: 0
Joined: 22 Feb 2008
Posts: 62
|
| Posted: Tue Aug 12, 2008 7:51 am Post subject: |
|
|
My bad, I didn't look at it closely enough  I just noticed there was a section missing after I posted. Thanks for correcting me lol.
|
|
| Back to top |
|
|
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
| Posted: Tue Aug 12, 2008 9:04 am Post subject: |
|
|
| Uzeil wrote: | A label is just a place in code.
Here's my way of explaining it through the example above.
| Code: | alloc(MouseTele,128)
label(TeleOn)
label(DoTele)
label(Normal)
label(Return) |
This is all that says:
Make room for up to 128 bytes of code, starting with an address I'll refer to as MouseTele.
Understand that when I say TeleOn, I'm refering to the point in code where I say 'TeleOn:'
" " where I say 'DoTele:'
" " Normal:
" " Return:
I don't know what your 'home' language is, so I'm restricting what I say to English(by 'home' language I was referring to coding, not Spanish or anything).
Labels are just that, labels for a point in code(labels, names, placeholders, 'label' is an english word, not 'coder lingo' or anything alien).
As for your adjustment(notice I called it an adjustment, not a 'fix')...
First of all, I'm ignoring the amounts you allocated. For all I know, you really did count out the number of bytes that code will take up and tried to work with it assuming they'd be allocated on top of eachother.
Issue: You took out the 'jmp Return' and the 'label(Return)', but left the 'Return:' at the end of the hook(lingo, just look for the 'Return:') Unless you want it to popad then go straight to DoTele, you're messing up. (And, even if you want it to go straight to DoTele, there is a high probability that after that 'popad' is what I'll call 'blank code'. This can either be a series of 00 00 or numbers counting up(depends on the CE version) like 11 22 33 or 12 34 56, haha.) - which is NOT something you want your code to run into).
Issue: You alloc but don't dealloc. As you turn the script on and off, you're just taking up more and more memory.
and uh
"The second one would probably work fine"
WOULD NOT, LOL.
(Too much serious. Couldn't not do it.) |
I know that. In my final dll vrsion I did correct the memory. BUt when I press the key to activate, It crashes maple without an error.
So... Can I replace Labels with alloc?
|
|
| Back to top |
|
|
Dark Byte
Site Admin
 Reputation: 471
Joined: 09 May 2003
Posts: 25833
Location: The netherlands
|
| Posted: Tue Aug 12, 2008 10:11 am Post subject: |
|
|
| Quote: | | BUt when I press the key to activate, It crashes maple without an error. |
That means the script executed properly, but WHAT the script does is wrong.
Are you sure 0073A27F , 00965B38 and 00965c88 are still the same ? (seeing you say you 'fixed' a script, but don't change addresses)
Also, your teleOn has no jmp return which causes to immediately go to DoTele, where it's ret8 will then jump to a random address that might have been on the stack and running undefined code
_________________
Do not ask me about online cheats. I don't know any and wont help finding them.
Like my help? Join me on Patreon so i can keep helping |
|
| Back to top |
|
|
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
| Posted: Tue Aug 12, 2008 10:30 am Post subject: |
|
|
o... By jumping return do you mean that you jump to the code after where i cut the code off to init codecave?
Oh yea and. How do you calculate jumps?
I know one jump and that is (where u are)-(where u are going+5)
or something...
And where does jmp Return lead the code?
|
|
| Back to top |
|
|
lurc
Grandmaster Cheater Supreme
 Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
|
| Posted: Tue Aug 12, 2008 10:43 am Post subject: |
|
|
When you intialize a code cave your breaking off the current code flow to a part you have allocated yourself.. from there you rewrite the instructions you overwrite and then jump back to the address after the codecave. If you dont jump back your code will be stuck wherever your allocated code left off in some random undefined spot. Which will lead to a crash.
using a label like
label(returnhere)
then after the address mod
0451505:
jmp mycodecave
returnhere:
also allows you to jump back like this
mycodecave:
//rewrite instructions
//do w/e else u wanna do
jmp returnhere
_________________
|
|
| Back to top |
|
|
dnsi0
I post too much
![]() Reputation: 0
Joined: 04 Jan 2007
Posts: 2674
|
| Posted: Tue Aug 12, 2008 11:09 am Post subject: |
|
|
Thanks I think I understand now.
So...
if I create a label:
label(asd)
and my codecave is at 00401000 (which is impossible)
| Code: | alloc(cc,1024)
00401000:
jmp cc
asd:
cc:
blab blab blab
jmp asd |
will make this
when program runs into 00401000 it jumps to cc.
after it finishes cc code it jumps back to 00401005 right?
Another attempt at fixing:
| Code: | [Enable]
alloc(TeleOn,30)
alloc(DoTele,28)
TeleOn:
pushad
mov eax,[00965c88]
mov eax,[eax+978]
push [eax+88]
push [eax+84]
call DoTele
popad
jmp 73A285
DoTele:
push [esp+8]
push [esp+8]
mov eax,[00965B38]
mov eax,[eax+D38]
push eax
mov eax,[eax]
call [eax+40]
ret 8
0073A27F:
jmp TeleOn
nop
[disable]
dealloc(MouseTele)
0073A27F:
db 8B 80 B4 09 00 00 |
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
