Looking to make something like this

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shism2

Joined: 14 Sep 2005
Posts: 248

shism2 21 May 2006, 23:40

Hope someone helps Very Happy

Well, I'm in need of something like this

mov edx, xorcrypt <a address>,key

In puesdo form :

Code:

macro xorcrypt addressx,key

{
load addressx to b

b  = addressx xor key

store b at  ??????

}

This would be very difficult from the looks of it. If anyone can help please do.

21 May 2006, 23:40

Reverend

Joined: 24 Aug 2004
Posts: 408
Location: Poland

Reverend 25 May 2006, 17:21

AFAIK, the idea of fasm was not to allow such macros. They can be only used separately (in the way as instructions). So macro cannot be used as operand of other instruction.

25 May 2006, 17:21

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 25 May 2006, 17:42

http://board.flatassembler.net/topic.php?t=5233#38530

25 May 2006, 17:42

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 25 May 2006, 20:15

However maybe he can take some ideas from invoke macro which allows to pass as parameter another invoke.

[edit] Maybe you want this?

Code:

macro mov dest, src
{ 
  if 1 
  match =xorcrypt imm =, key, src 
  \{
    if imm eqtype 1 | imm eqtype ''
      mov dest, imm xor key
    else
      display "Invalid immediate operand!!"
      err
    end if
  else 
  \} 
    mov dest, src 
  end if 
} 

mov edx, <xorcrypt address, -1> ; 66 BA F3 FF FF FF
mov edx, address                ; 66 BA 0C 00 00 00 

address:

[/edit]

25 May 2006, 20:15

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