Determine whether 32bit or 64bit is used

flat assembler
Message board for the users of flat assembler.

Index > Macroinstructions > Determine whether 32bit or 64bit is used

Author

Thread

yoshimitsu

Joined: 07 Jul 2011
Posts: 96

yoshimitsu 28 Apr 2012, 21:34

I'd like to write a macro which includes a corresponding file depending on the generated code like

Code:

if use32
  include '32bitfile'
else if use64
  include '64bitfile'
end if

Is there an official way for this or do I have to use a virtual-trick like

Code:

local x64
virtual
 nop [eax]
 load x64 from $$
 if x64 = 67h
  x64 = 1
 else
  x64 = 0
 end if
end virtual

if x64
 display '64bit'
else
 display '32bit'
end if

Last edited by yoshimitsu on 28 Apr 2012, 22:26; edited 1 time in total

28 Apr 2012, 21:34

JohnFound

Joined: 16 Jun 2003
Posts: 3499
Location: Bulgaria

JohnFound 28 Apr 2012, 22:12

There is no official way. But IMHO the trick with virtual is OK.

28 Apr 2012, 22:12

baldr

Joined: 19 Mar 2008
Posts: 1651

baldr 02 Jun 2012, 21:37

yoshimitsu,

Probably somewhat quirky solution can be found there. Note that your mix of preprocessor's and interpreter's directives going to include both files.

Unless you're cross-compiling, include "%Processor_Architecture%.finc" with properly defined x86.finc and such will fit the bill.

02 Jun 2012, 21:37

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20623
Location: In your JS exploiting you and your system

revolution 02 Jun 2012, 22:16

baldr wrote:

Note that your mix of preprocessor's and interpreter's directives going to include both files.

Yes, both files are included but they are still assembled within the if/else/end if context. This may or mat not work depending upon the exact contents of the two files.

02 Jun 2012, 22:16

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum