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I would like to know where I can get started understanding disassembly in this format. I am familiar with OllyDbg from back in my windows days but this is a bit different, and would like to get the semantics down. Example of part of what I'm talking about objdump -d loops:

080483b4 <main>: 80483b4: 55 push %ebp 80483b5: 89 e5 mov %esp,%ebp 80483b7: 83 ec 10 sub $0x10,%esp 80483ba: c7 45 f8 00 00 00 00 movl $0x0,-0x8(%ebp) 80483c1: c7 45 fc 00 00 00 00 movl $0x0,-0x4(%ebp) 80483c8: eb 11 jmp 80483db <main+0x27> 80483ca: 83 45 f8 01 addl $0x1,-0x8(%ebp) 80483ce: 81 7d f8 f4 01 00 00 cmpl $0x1f4,-0x8(%ebp) 80483d5: 75 f3 jne 80483ca <main+0x16> 80483d7: 83 45 fc 01 addl $0x1,-0x4(%ebp) 80483db: 81 7d fc f4 01 00 00 cmpl $0x1f4,-0x4(%ebp) 80483e2: 75 ea jne 80483ce <main+0x1a> 80483e4: c9 leave 80483e5: c3 ret

Thank you

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    FYI: you can do use -m i386:intel or -m i386:x86-64:intel respecetively to get intel syntax on your output from objdump. Commented Oct 22, 2011 at 22:52

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You can find out more about the AT&T x86 assembly language syntax, for example, here.

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