Virtual at

flat assembler
Message board for the users of flat assembler.

Index > Main > Virtual at

Author

Thread

wishmaster

Joined: 25 Aug 2004
Posts: 9

wishmaster 25 Aug 2004, 14:28

Hello, i am new at Assembler and FASM. I have a question, for what is the "virtual at" instruction ? Thanks for help Smile

Bye.

25 Aug 2004, 14:28

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 25 Aug 2004, 18:14

first you need to understand what is "virtual" for. It doesn't really define data, it only defines symbols (labels, numeric constants) as if the data was defined. For example

Code:

virtual
  x1 = 1
  x2 db 5
  x3 db 'aaaaaaaa',0
end virtual

only defines symbols x1, x2 and x3, no data is defined.

"at" behind "virtual" just allows you to change origin of labels, "virtual at XXX" is same as

Code:

  virtual
  org XXX

Code:

  virtual
  $ = XXX

25 Aug 2004, 18:14

< 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