FASM untypical problem

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AsmER

Joined: 25 Mar 2006
Posts: 64
Location: England

AsmER 15 Apr 2006, 01:36

Hi everybody,

Why fasm doesn't generate any errors in code bellow only because this procedure is not called in the whole program:

Code:

proc    MyPorc
        mov al, st ; NO COMMENT
        ^%$£^%$£"^%$£"^%$£"
        WOW. I'm here
        TNO 10, eax ;The New Opcode, can force cpu to move value from eax to 10
        ret
endp

And is it possible to force fasm to check everything in source code, even if I do not using all of that things Question

PS
Sorry if I should posted it in Feedback forum

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15 Apr 2006, 01:36

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20422
Location: In your JS exploiting you and your system

revolution 15 Apr 2006, 03:27

The "proc" macro has the "if used [proc name]" so all code is ignored unless the proc is actually used. To solve your problem you can edit the proc and endp macros to remove "if used .." and "end if".

15 Apr 2006, 03:27

UCM

Joined: 25 Feb 2005
Posts: 285
Location: Canada

UCM 15 Apr 2006, 12:50

well then if it is not used it will be stored in the file anyway.. maybe you could put it into a virtual 0 and use some 'store's, but i dunno..

15 Apr 2006, 12:50

AsmER

Joined: 25 Mar 2006
Posts: 64
Location: England

AsmER 15 Apr 2006, 18:04

Ok. Thanks.

And by the way, if [my_var_name] mean the value in my_var_name, then what's wrong with that:

push byte [my_var_name] ; when my_var_name variable was definied by DB directive. (Error: invalid size of operand)
pop byte [pfd.cColorBits] ; pfd.cColorBits definied as BYTE

Does it mean, that I can't use 8bits push and pop instructions?
Sorry, but I'm new in fasm, and sometimes I asking stupid questions. thx again.

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15 Apr 2006, 18:04

shism2

Joined: 14 Sep 2005
Posts: 248

shism2 15 Apr 2006, 20:35

You just have to do this

Myproc1 dd MyPorc

You have to state at least the name of the proc somewhere in the program

15 Apr 2006, 20:35

UCM

Joined: 25 Feb 2005
Posts: 285
Location: Canada

UCM 15 Apr 2006, 21:59

push and pop can each only be 32 and 16 bits.. you just can't push/pop a byte.

15 Apr 2006, 21:59

TDCNL

Joined: 25 Jan 2006
Posts: 56

TDCNL 16 Apr 2006, 09:34

shism2 wrote:

You just have to do this

Myproc1 dd MyPorc

You have to state at least the name of the proc somewhere in the program

Then the whole procedure will be included in the executable code too Wink

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16 Apr 2006, 09:34

Madis731

Joined: 25 Sep 2003
Posts: 2139
Location: Estonia

Madis731 17 Apr 2006, 11:34

...but its only for debugging, so why not?
If you really don't want to add procedure to your executable, then the use of virtual can help you out as UCM suggested...

17 Apr 2006, 11:34

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 17 Apr 2006, 18:28

shism: put this data in virtual block, so there won't be those unneeded 4bytes:

Code:

virtual
dd SomeProcedure
end virtual

but i suggest separate macro package for debugging version, without if used. or, if you are good with macros, you can edit it so that it will check for some symbol. Or it can be done without preprocessor, with something like "if used a | defined debug", but then compilation will be slower

17 Apr 2006, 18:28

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