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Index > Windows > how do you make the "return" macro return a value?

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madmatt



Joined: 07 Oct 2003
Posts: 1045
Location: Michigan, USA
madmatt
Is there a way to make the "return" macro in the "proc" macro take an argument? This is would save me some time in typing.
Post 17 Apr 2005, 20:25
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Tommy



Joined: 17 Jun 2003
Posts: 489
Location: Norway
Tommy
Assigning a value to EAX and then "return"... Ain't that easy enough?
Post 18 Apr 2005, 06:06
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madmatt



Joined: 07 Oct 2003
Posts: 1045
Location: Michigan, USA
madmatt
Should've included an example, I just want to do this: return eax, or something like return [ecx+edx*4]. It would be just a bit easier, that's all.
Post 18 Apr 2005, 08:56
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Vasilev Vjacheslav



Joined: 11 Aug 2004
Posts: 392
Vasilev Vjacheslav
Code:
call _myproc, NULL

proc _myproc, lpParam
   mov   eax,[lpParam]
   add    eax,012345678h
   return
endp
    
Post 18 Apr 2005, 10:23
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Tommy



Joined: 17 Jun 2003
Posts: 489
Location: Norway
Tommy
In "%fasminc%/macros/stdcall.inc" you find "macro return %_", replace it with:
(untested)
Code:
macro return retval %_
if ~ retval eq
  mov eax,retval
end if
...
    
You can also check whether or not retval is eax...
Post 18 Apr 2005, 15:17
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madmatt



Joined: 07 Oct 2003
Posts: 1045
Location: Michigan, USA
madmatt
Thanks Tommy! Just change the %_ to _% and it works good!
Matt
Post 19 Apr 2005, 11:28
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