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Re: assembly jmp to hard-coded address with gcc
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Re: assembly jmp to hard-coded address with gcc


  • Subject: Re: assembly jmp to hard-coded address with gcc
  • From: Chris Ridd <email@hidden>
  • Date: Wed, 12 Aug 2009 10:25:00 +0100


On 12 Aug 2009, at 10:04, Steve Checkoway wrote:


On Aug 12, 2009, at 3:00 AM, Thierry bultel wrote:

I am not a x86 assembly expert, but I am pretty sure that jmp does not take an immediate address
as a parameter.

I am also not an x86 expert, but I think that jmp _does_ take an immediate offset (as your second example demonstrates) or absolute address <http://en.wikipedia.org/wiki/JMP_(x86_instruction)>. The hotel wireless is slow enough here to prevent me from downloading the manual linked on that page to figure out exactly what is possible with jmp.

Everyone's forgotten the rather useful Services > ISA Reference > Lookup x86 instruction :-)


Cheers,

Chris
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  • Follow-Ups:
    • Re: assembly jmp to hard-coded address with gcc
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References: 
 >assembly jmp to hard-coded address with gcc (From: Aron-Zvi <email@hidden>)
 >Re: assembly jmp to hard-coded address with gcc (From: Thierry bultel <email@hidden>)
 >Re: assembly jmp to hard-coded address with gcc (From: Steve Checkoway <email@hidden>)

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