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How can I initialize a structure in static data segment?
Who can tell me how can I initialize a structure in static data segment like this in C?
struct
{
char *szLabel;
char *szDesc;
}
sysmetrics[]=
{
"SM_CXSCREEN","Screen width in pixels",
"SM_CYSCREEN","Screen Height in pixels"
......
}
Posted on 2002-10-13 05:13:34 by smartcurl
How can I initialize a structure in static data segment?
Testing STRUCT

    hFile       DD ?

    szFileName  DB 20 DUP(?)

    DB          0            ;String terminate with 0

Testing ENDS



.DATA



    myfile  Testing <1, "Hello Cruel World">, <2, "Hello World">, <3, "I'm A MArtian">

    tests   DB "tests", 0



.CODE



start:

    

    invoke  MessageBox, HWND_DESKTOP, OFFSET myfile.szFileName, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, OFFSET myfile[SIZEOF Testing].szFileName, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, OFFSET myfile[SIZEOF Testing*2].szFileName, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, OFFSET tests, NULL, MB_OK



    invoke  ExitProcess, 0



end start
Posted on 2002-10-13 16:55:53 by stryker
How can I initialize a structure in static data segment?
Much better solution.
.686

.MODEL FLAT, STDCALL

OPTION CASEMAP:NONE



INCLUDE \dev\masm32\include\windows.inc

INCLUDE \dev\masm32\include\kernel32.inc

INCLUDELIB \dev\masm32\lib\kernel32.lib

INCLUDE \dev\masm32\include\user32.inc

INCLUDELIB \dev\masm32\lib\user32.lib

INCLUDE \dev\masm32\include\shell32.inc

INCLUDELIB \dev\masm32\lib\shell32.lib



LBL STRUCT

    szLabel     DD ?

    szDesc      DD ?

LBL ENDS



.DATA



    f1      DB "Number One", 0

    f2      DB "Number Two", 0

    f3      DB "Number Three", 0

    

    lvl     LBL <1, OFFSET f1>, <1, OFFSET f2>, <3, OFFSET f3>



.CODE



start:

    

    invoke  MessageBox, HWND_DESKTOP, lvl.szDesc, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, lvl[SIZEOF LBL].szDesc, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, lvl[SIZEOF LBL*2].szDesc, NULL, MB_OK



    invoke  ExitProcess, 0



end start
Posted on 2002-10-13 20:07:13 by stryker
How can I initialize a structure in static data segment?
Cool! stryker
It's so helpful to me.thank you.but if ".686" means that code must cann't run on Pentium cpu?Maybe this question is too naive.:confused:
Posted on 2002-10-13 20:22:19 by smartcurl
How can I initialize a structure in static data segment?
the program still works, it's just that when I code I usually use all available instructions on my p3 when needed. Using .386 -> .586 doesn't allow the use of the CMOVcc instructions... the code above doesn't use any of these instructions, it only uses push and call - generated by invoke.

You can change that to .386, .486, 586 ... if you want to. :)
Posted on 2002-10-13 20:47:39 by stryker
How can I initialize a structure in static data segment?
I got it!
Thanks again.:)
Posted on 2002-10-13 20:53:33 by smartcurl
How can I initialize a structure in static data segment?
Much better solution.

Macro stolen from gfalen. :)
.686

.MODEL FLAT, STDCALL

OPTION CASEMAP:NONE



INCLUDE \dev\masm32\include\windows.inc

INCLUDE \dev\masm32\include\kernel32.inc

INCLUDELIB \dev\masm32\lib\kernel32.lib

INCLUDE \dev\masm32\include\user32.inc

INCLUDELIB \dev\masm32\lib\user32.lib

INCLUDE \dev\masm32\include\shell32.inc

INCLUDELIB \dev\masm32\lib\shell32.lib



LBL STRUCT

    szLabel     DD ?

    szDesc      DD ?

LBL ENDS



t MACRO _str:VARARG

    LOCAL @@1

    IF @InStr(1, <_str>, <!"> )

        .DATA

            @@1 DB _str, 0

        .DATA

        EXITM <OFFSET @@1>

    ELSE

        EXITM <_str>

    ENDIF

ENDM



.DATA



    lvl     LBL <1, t("Number One")>, <1, t("Number Two")>, <3, t("Number Three")>



.CODE



start:



    invoke  MessageBox, HWND_DESKTOP, lvl.szDesc, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, lvl[SIZEOF LBL].szDesc, NULL, MB_OK

    invoke  MessageBox, HWND_DESKTOP, lvl[SIZEOF LBL*2].szDesc, NULL, MB_OK



    invoke  ExitProcess, 0



end start
Posted on 2002-10-14 00:51:27 by stryker