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Auto-Assembly - code problem...

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deama1234
Master Cheater

Reputation: 3

Joined: 20 Dec 2014
Posts: 328

Posted: Wed Jan 28, 2015 8:36 am Post subject: Auto-Assembly - code problem...

Code:

originalcode:
push ecx
push eax
push edx
push bx
jmp compare

calculate:
sub [ebx+00000480],01 //action to delay
pop bx
pop edx
pop eax
pop ecx
jmp exit

compare:
cmp bx,00
je delay
call gettickcount
mov ecx,eax
sub ecx,edx
cmp ecx,03E8
jae calculate
jmp compare

delay:
call gettickcount
mov edx,eax
inc bx
jmp compare

exit:
jmp returnhere

I'm trying to delay the "sub [ebx+00000480],01" by a second, but the code at the top won't work...
did I miss something?

SteveAndrew
Master Cheater

Reputation: 30

Joined: 02 Sep 2012
Posts: 323

Posted: Wed Feb 04, 2015 10:41 am Post subject: Re: Auto-Assembly - code problem...

deama1234 wrote:

Code:

I'm trying to delay the "sub [ebx+00000480],01" by a second, but the code at the top won't work...
did I miss something?

Well your code is a little convoluted, let me clean it up a bit... So from what I can see you need it to actually hold up the executing thread for a second? Or should the thread continue but that instruction "sub [ebx+x],1" should only run once a second, but still allow code after it? When does this get executed?

Something like this should work:

Code:

[enable]
alloc(DelayCodeForASecond,1024)
label(DelayCodeLoop)
label(WaitASecond)
label(FinishTime)
label(returnhere)

DelayCodeForASecond:
pushad

DelayCodeLoop:
call kernel32.GetTickCount
cmp [FinishTime],0
jne WaitASecond

add eax,#1000 //I like to pre-add to the time so there's an "end time" instead of "start time"
mov [FinishTime],eax
jmp DelayCodeLoop //actually trap in this loop until a second has gone by

WaitASecond:
cmp eax,[FinishTime]
jb DelayCodeLoop //actually trap in this loop until a second has gone by

//A second has elapsed...
sub [ebx+480],1 //execute this instruction which has been delayed
mov [FinishTime],0 //reset so it can execute again in another second from the time it's attempted to be executed again
popad
jmp returnhere

FinishTime:
dd 0

Game.exe+4280f4:
jmp DelayCodeForASecond
db 90 90
returnhere:

[disable]

dealloc(DelayCodeForASecond)

replace "jmp DelayCodeForASecond" and "jb DelayCodeForASecond" with: jmp/jb returnhere to instead allow the code after "sub [ebx+x],1" to execute normally but only allow "sub [ebx+x],1" to execute once every time a second has passed

You'll have to try both ways and see which is what you're looking for...

Plus of course you could do it your way, with a start time instead of an end time, doesn't make a whole lot of difference I guess...

Code:

[enable]
alloc(DelayCodeForASecond,1024)
label(DelayCodeLoop)
label(WaitASecond)
label(StartTime)
label(returnhere)

DelayCodeForASecond:
pushad

DelayCodeLoop:
call kernel32.GetTickCount
cmp [StartTime],0
jne WaitASecond

mov [StartTime],eax //I guess you could do start time also
popad
jmp returnhere

WaitASecond:
add eax,#1000
cmp eax,[StartTime]
popad
jb returnhere

//A second has elapsed...
sub [ebx+480],1
mov [StartTime],0 //reset so it can be set again
jmp returnhere

StartTime:
dd 0

Game.exe+4280f4:
jmp DelayCodeForASecond
db 90 90
returnhere:

[disable]

dealloc(DelayCodeForASecond)

There that should do it Smile

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