what's the differ between lea and mov offset ?

From: Amr Mostafa (amrgo_at_hotmail.com)
Date: 01/19/04 

Date: Mon, 19 Jan 2004 18:55:56 +0000 (UTC)

Greetings all,

a beginner is here ! :)

I want to know what's the difference between using :

1- lea dx,string
2- mov dx,offset string

I'm confused! as I think both of them gets 'string' address in memory
and puts it in dx

thanks for help!

regards,
amr

Relevant Pages

  • Re: whats the differ between lea and mov offset ?
    ... > 1- lea dx,string ... as I think both of them gets 'string' address in memory ... The mov instruction in this case is identical, ...
    (comp.lang.asm.x86)
  • Re: whats the differ between lea and mov offset ?
    ... as I think both of them gets 'string' address in memory ... MOV alternative, hence the offset must be available for computation at ... the LEA alternative must be used since ...
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  • Re: whats the differ between lea and mov offset ?
    ... Amr Mostafa wrote: ... > 2- mov dx,offset string ... as I think both of them gets 'string' address in memory ... LEA is longer, on older processor could be slower, but I'm not sure ...
    (comp.lang.asm.x86)
  • Re: Nasm 0.99.01 available
    ... relatively simple string processing code, and POST variables are sent through ... mov esi,env_names ... call puts ... ;;; strcmp Compares a NULL terminated string at esi to one at edi ...
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    ... let's just follow the code flow through your disassembler and see ... EDI points at the location where you want to store the string. ... On B$OperandSizeOverride = &TRUE, mov W$DisSizeMarker 'W$' ... mov eax D$LibFileMemory | add eax D$LibFileLength ...
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