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Index > Windows > help proc params.

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Roman



Joined: 21 Apr 2012
Posts: 598
Roman
My proc:
Code:
proc Pr1 Name : DWORD, Param : i need 64 bytes !!!
endp
    


I need size Param = 64 or more (128 bytes), how do this ?
Post 11 Jan 2016, 19:41
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Roman



Joined: 21 Apr 2012
Posts: 598
Roman
struct MyStr
x dd 0
y dd 0
z dd 0
flag dd 0
op1 dd 0
op2 dd 0
ends
i mean Param : MyStr
Post 12 Jan 2016, 10:07
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Picnic



Joined: 05 May 2007
Posts: 1288
Location: behind the arc
Picnic
Pass a pointer to a MyStr structure.
Code:
stdcall Pr1, arg, MyStr1
    

Make a local copy of structure.
Code:
proc Pr1 Name : DWORD, Param : DWORD

  local mystr : MyStr

  ; mystr = Param  
  mov esi, dword [Param] 
  lea edi, dword [mystr] 
  mov ecx, sizeof.MyStr
  cld
  rep movsb
  
  ;
  ;

  ret
endp 
    

Excuse me if I get it wrong what you ask.
Post 12 Jan 2016, 14:32
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Roman



Joined: 21 Apr 2012
Posts: 598
Roman
Thanks Picnic.
I understand.
For Proc maximum QWORD size for one argument.
Thi is might be pointer to any data\struct.
Post 13 Jan 2016, 06:09
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jiangfasm



Joined: 08 Mar 2015
Posts: 58
jiangfasm
proc Pr1 Name : DWORD, Param : qword
endp

Are you writing win32 program?
Post 19 Jan 2016, 16:09
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