flat assembler - if~ defined

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uri

Joined: 09 Apr 2004
Posts: 43
Location: L'viv, Ukraine

uri 13 May 2004, 12:46

Good day, all.
please,

Code:

if~     defined VERSION
     VERSION = 0x400
end if
org        100h
main:       nop

result:
flat assembler version 1.52
error: code cannot be generated.

why?

13 May 2004, 12:46

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8357
Location: Kraków, Poland

Tomasz Grysztar 13 May 2004, 12:59

In first pass "VERSION" constant gets defined after it was referenced, so fasm needs to do the next pass, and this time "defined VERSION" is predicted to be true and "VERSION" doesn't get defined and one more pass is needed and so on.

The correct variant should be:

Code:

if ~ defined VERSION | defined VERSION_DEFINED_HERE
 VERSION = 0x400
 VERSION_DEFINED_HERE = 1
end if

Last edited by Tomasz Grysztar on 25 May 2004, 15:10; edited 1 time in total

13 May 2004, 12:59

uri

Joined: 09 Apr 2004
Posts: 43
Location: L'viv, Ukraine

uri 13 May 2004, 13:03

Thanks, it was so quickly.

I was wrote on masm more than 5 years, and 3 weeks ago i was try to use fasm.
Now i rewrite my masm macroses on fasm. Fasm - very good thing, and i'm glad to see that.

Thanks.

13 May 2004, 13:03

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 13 May 2004, 18:30

i suggest you macro

Code:

macro ifndef expr
{
   local HERE
   if defined HERE | ~ defined expr
     HERE = 1 
}

usgae:

Code:

ifndef a
  a = 5
end if

ifndef (a+5)*c
  a=5
  c=3
end if

13 May 2004, 18:30

zjlcc

Joined: 23 Jul 2003
Posts: 32
Location: china

zjlcc 25 May 2004, 19:57

oh yeah

i made "overlay" !!!

more thanks for Privalov,vid and uri

i like FASM

25 May 2004, 19:57

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