fasm limitation for symbol pattern

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ProMiNick

Joined: 24 Mar 2012
Posts: 770
Location: Russian Federation, Sochi

ProMiNick 04 Oct 2019, 11:21

someone asked how to place multiline comment from point up to end of file

Code:

db 0 ; output ends here without error
We could place here and after anything we want.
mov eax,edx
include '1.asm'
he he
And compilation will be succesful!

Code:

;We could ever comment it
but effect on unclosable multiline comment will remains.

Code:

db 0and even that will work

Tomasz, can you describe internal nature of that.
Is it feature or bug? I like it.

sintactically correctbut "" it is very special symbol

_________________
I don`t like to refer by "you" to one person.
My soul requires acronim "thou" instead.

Last edited by ProMiNick on 08 Dec 2020, 13:51; edited 1 time in total

04 Oct 2019, 11:21

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8266
Location: Kraków, Poland

Tomasz Grysztar 04 Oct 2019, 11:28

fasm traditionally respects the EOF character defined by MS-DOS/Windows.

04 Oct 2019, 11:28

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19871
Location: In your JS exploiting you and your system

revolution 04 Oct 2019, 11:32

It's in PREPROCE.INC:

Code:

      next_line:
        cmp     byte [esi-1],0
        je      file_end
        cmp     byte [esi-1],1Ah
        jne     preprocess_source
      file_end:

Either 0x00 or 0x1a will signal the end of the file.

04 Oct 2019, 11:32

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