Few questions of syntax questions

Index > Windows > Few questions of syntax questions

Author

Thread

StakFallT

Joined: 19 Jan 2006
Posts: 50

StakFallT 26 Jan 2006, 13:42

1a) How does one fill in values during declartion (more specifically the sizeof parameter) with this
LCDBITMAPINFO BITMAPINFOHEADER

I tried LCDBITMAPINFO BITMAPINFOHEADER <$ - BITMAPINFOHEADER, ...>
but it didn't like that...
1b) Is there a sizeof function besides $ - <object type> and can it be used during the declaration of objects in the different data sections of one's code where generally most of the variables are declared and/or initialized?

2a) What's the fasm equivalent to the MASM statement
imul edx,RandSeed,08088405H ?
2b) Where does imul store the value in the above line, edx or eax?

-- StakFallT

26 Jan 2006, 13:42

Madis731

Joined: 25 Sep 2003
Posts: 2139
Location: Estonia

Madis731 26 Jan 2006, 14:18

1a)

Code:

some_structure:
...
end_of_structure
some_structure.size=$-some_structure
;OR
sizeof.some_structure=$-some_structure

1b)
NO - only macros that do the same as 1a

2a)

Code:

imul edx,[RandSeed],08088405H

2b)
EDX

26 Jan 2006, 14:18

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8359
Location: Kraków, Poland

Tomasz Grysztar 26 Jan 2006, 17:14

As for the 1a, it think it was rather this that he wanted:

Code:

LCDBITMAPINFO BITMAPINFOHEADER sizeof.BITMAPINFOHEADER

which sets up [LCDBITMAPINFO.biSize] with value sizeof.BITMAPINFOHEADER.

26 Jan 2006, 17:14

RedGhost

Joined: 18 May 2005
Posts: 443
Location: BC, Canada

RedGhost 27 Jan 2006, 03:03

Tomasz Grysztar wrote:

As for the 1a, it think it was rather this that he wanted:
Code:
LCDBITMAPINFO BITMAPINFOHEADER sizeof.BITMAPINFOHEADER    
which sets up [LCDBITMAPINFO.biSize] with value sizeof.BITMAPINFOHEADER.

didn't know fasm could dynamically initiate struct members like that on declaration (is there anything this damn assembler cant do yet Surprised

)

...
i tend to just write out the structures manually and do what Madis suggested, like i needed a PROCESSENTRY32 structure last night but only two of the parameters

Code:

_PROCESSENTRY32:
    dd _PROCESSENTRY32.size ;initialize .dwSize (required)
    dd ?
    .th32ProcessID dd ?
    rd 6
    .szExeFile rb 260 ;MAX_PATH
    _PROCESSENTRY32.size = $-_PROCESSENTRY32

and i would just reference _PROCESSENTRY32.whatever, but that style isnt very dynamic

_________________
redghost.ca

27 Jan 2006, 03:03

< 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