Problem with EQU in conditional compilation

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alorent

Joined: 05 Dec 2005
Posts: 221

alorent 13 Oct 2009, 18:28

Hello,

I have the following example:

----

Code:

DEFINE_YEAR = 1


IF DEFINE_YEAR 

    pyear  EQU 'ok'

ELSE

    pyear  EQU 'error_error_error'

END IF 


mov     eax, pyear

-----

When I compile it, I get error as "eax" is assigned "error_error_error"!!!

How can that be if the condition DEFINE_YEAR is 1?

Thanks!

13 Oct 2009, 18:28

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 13 Oct 2009, 18:42

That is because the preprocessor doesn't see the assembler stage IF-ELSE.

If you can change DEFINE_YEAR to "DEFINE_YEAR equ 1" or even "DEFINE_YEAR equ yes" then you could do this:

Code:

DEFINE_YEAR equ yes

match =yes, DEFINE_YEAR{pyear EQU 'ok'}
match =no, DEFINE_YEAR{pyear equ 'error_error_error'}

mov eax, pyear ; You'll get an error with "DEFINE_YEAR equ no", though.

13 Oct 2009, 18:42

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8351
Location: Kraków, Poland

Tomasz Grysztar 13 Oct 2009, 18:59

You may want to check out the fourth question in FAQ, too.

13 Oct 2009, 18:59

alorent

Joined: 05 Dec 2005
Posts: 221

alorent 13 Oct 2009, 19:57

Thanks a lot!!! It works great with "match" approach Wink

Thanks Tomasz for the link, I was reading through all docs by I might have missed that Smile

13 Oct 2009, 19:57

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