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chase0
How do I cheat?
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Joined: 06 Oct 2016
Posts: 6
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 Posted: Sat Oct 08, 2016 11:40 am Post subject: [6.6] How exactly is `align` supposed to be used? |
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This:
| Code: | [ENABLE]
alloc(M,1024)
label(L)
M:
align #16
L:
[DISABLE]
dealloc(M) |
...bugs out: allocates the memory, but doesn't mark table's script entry as active, so it can't be deactivated.
Is this the right way to use it? Is there an example in some place that I'm missing?
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Zanzer
I post too much
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| Posted: Sat Oct 08, 2016 11:48 am Post subject: |
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| Attach CE to the process first?
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chase0
How do I cheat?
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Joined: 06 Oct 2016
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| Posted: Sat Oct 08, 2016 11:56 am Post subject: |
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| Nice try. Now how about you try using that directive first.
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Merlini
Advanced Cheater
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Joined: 12 Jun 2016
Posts: 53
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| Posted: Sat Oct 08, 2016 12:34 pm Post subject: |
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Test condition:
1 ) Open Notepad
2 ) Type StartHere
3 ) Open CE 6.6
4 ) Attach Notepad
5 ) Search String UTF-16 for StartHere
6 ) Open CE memory view at the address
7 ) Ctrl+A for auto assemble
8 ) AA code as in screenshot, replacing first address with StartHere address.
9 ) Execute
Seems like it's working exactly as it is supposed to.
I've actually been wanting for align functionality.
Thanks DB.
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chase0
How do I cheat?
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| Posted: Sat Oct 08, 2016 12:42 pm Post subject: |
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| It does work, in the sense that the alignment works (although it silently swallows specifying non-powers of 2 instead of generating an error). It just messes up table scripts, preventing them from getting marked as active.
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Dark Byte
Site Admin
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Location: The netherlands
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| Posted: Sat Oct 08, 2016 1:57 pm Post subject: |
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if for some reason you want to align it on a non-power of 2 then sure. You can do that.
Also, align lets you specify a filler byte as 2nd parameter
e.g:
| Code: |
00400500:
align 7 cc
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will fill 00400500 to 00400505 with cc
and if you ask why, that's because 00400506=4195590 which is dividable by 7
edit: ah I see, the aa doesn't like it when it writes 0 bytes which it interprets as failure
It's fixed in this download https://github.com/cheat-engine/cheat-engine/releases/download/6.6/CheatEngine66.exe
(the main website will be updated once the mirror updates tomorrow)
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panraven
Grandmaster Cheater
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Joined: 01 Oct 2008
Posts: 942
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| Posted: Sat Oct 08, 2016 2:53 pm Post subject: |
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| Dark Byte wrote: | ...
edit: ah I see, the aa doesn't like it when it writes 0 bytes which it interprets as failure
... |
hi, quote in lua AOBScan function
| Code: |
alignmenttype is an integer:
0=No alignment check
1=Address must be dividable by alignmentparam
2=Address must end with alignmentparam
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Can it be use the alignment type 2 ? may be by a special notation, eg.
| Code: |
align x7 -- align to 400107,400117,etc.
align x00 -- align to 400100,400200,etc.
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Also, mgr.inz.Player has made a registerAssembler ( http://forum.cheatengine.org/viewtopic.php?t=574426 ) include custom alignment, at that time, it has related issue that it emit full align bytes in case of zero bytes needed.
Can allow registerAssembler callback function emit zero bytes?
ADDED:
may also be use something like :
so that the padding bytes are using the set like mgr.inz.Player's .
Thank you~
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Dark Byte
Site Admin
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Location: The netherlands
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| Posted: Sat Oct 08, 2016 3:12 pm Post subject: |
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| Quote: |
align x7 -- align to 400107,400117,etc.
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| Code: |
align 10
db * * * * * * *
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or if you don't mind the bytes being initialized to 0:
| Code: |
align 10
resb 7 //7 is an decimal, not hex
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| Quote: |
align x00 -- align to 400100,400200,etc.
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and the link I posted above may support 0 byte aa commands as well (untested)
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panraven
Grandmaster Cheater
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| Posted: Sat Oct 08, 2016 3:35 pm Post subject: |
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Thank you!
Not know resb can initialize bytes.
Someone (with decent English ) should put these tip & trick in Wiki !
bye~
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chase0
How do I cheat?
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Joined: 06 Oct 2016
Posts: 6
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| Posted: Sun Oct 09, 2016 1:36 am Post subject: |
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| Dark Byte wrote: | | if for some reason you want to align it on a non-power of 2 then sure. You can do that. |
No, I was just pointing out assemblers tend to treat that as an error.
| Dark Byte wrote: | | edit: ah I see, the aa doesn't like it when it writes 0 bytes which it interprets as failure |
Exactly, it's issue #512 on Mantis BT. And thanks.
| panraven wrote: | | Not know resb can initialize bytes. |
Well, to nitpick, `resb`, etc. shouldn't *initialize*, they reserve storage, leaving it *un*initialized.
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