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Find Opcodes for strings.

 
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sjl002
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PostPosted: Mon Jan 18, 2016 8:04 pm    Post subject: Find Opcodes for strings. Reply with quote

Hi.(Please do not be ridiculous.)
In cheat engine i left click on string value and click on "Find out what accesses this address" but cheat engine can not find opcodes for string.
Who can help me?
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hhhuut
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PostPosted: Tue Jan 19, 2016 2:46 am    Post subject: Reply with quote

String operations are usually made by movsb/movsw/movsd (which stands for mov string byte/word/...) together with ESI and EDI as Source Index and Destination Index ...

Does the string actually change when you debug it?
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sjl002
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PostPosted: Tue Jan 19, 2016 5:45 am    Post subject: Reply with quote

No, The string not change when I debug it?
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hhhuut
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PostPosted: Tue Jan 19, 2016 6:13 am    Post subject: Reply with quote

Could you probably provide some more information about what the string displays and why you need it?
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sjl002
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PostPosted: Tue Jan 19, 2016 6:37 am    Post subject: Reply with quote

I not will write Strings ID , but you ask from me, I answer to your ask.
Because want find opcodes for fixed strings ID that used in Player health auto assembly code.
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hhhuut
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PostPosted: Tue Jan 19, 2016 7:26 am    Post subject: Reply with quote

So the health is stored as a string, do I get that right?
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ParkourPenguin
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PostPosted: Tue Jan 19, 2016 11:23 am    Post subject: Reply with quote

sjl002 wrote:
No, The string not change when I debug it?

If no instruction is accessing that address, then CE won't be able to find any instruction that accesses that address. The reverse is also (usually) true.
If it does happen to change while you have that window open (and you haven't clicked on "stop" yet), then something should pop up.

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++METHOS
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PostPosted: Tue Jan 19, 2016 2:26 pm    Post subject: Reply with quote

Values like these may get loaded on target startup. Try leaving the debugger running while entering and exiting the pause menu etc. or completing a mission/level etc.. If that doesn't work, you may be able to analyze the data structure and use a different value/offset for your injection point.
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