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Help with modifying assembly...
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Forum Regular
Join Date: Mar 2003
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Jul 18, 2003, 01:21 PM
 
OK, I am doing some tinkering with some executables that I don't have the source code to. I guess you would call this "hacking", but not in the malicious sense. For instance changing some conditional branches to jumps, (I guess unconditional branches as PPC has no jumps?)

Anyway, I am an engineer, not a developer, so I was wondering if there were easy methods to do this.

I know the command line "otools" will disassemble with the -tV option, and that OS X has a built in assembler "as". But, I don't think otools dissasembles enough, or in the right format for "as" to reassemble it.

Maybe I am in a bit deep, but I am still curious how to go about this. Any help?
     
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Jul 18, 2003, 01:23 PM
 
...and this is just for kicks, so I don't want to buy any software. How can I do this with built-in or free/shareware software.
     
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Join Date: Sep 2000
Location: Tempe, AZ
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Jul 18, 2003, 04:57 PM
 
gdb and HexEdit.
Geekspiff - generating spiffdiddlee software since before you began paying attention.
     
   
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