convert c++ to masm

[ragdog]

Sorry

I have test this 2 ways and this works not in my example

Can you tell me how did you created this page?

Only what works if this with "mov"

[clive]

I just used a very trivial ASM file, for which I showed the LST file generated by

ML -c  -Fl  test16.asm

using MASM 6.15

TEST16.ASM

Code Select Expand

        .386
        .MODEL FLAT

        .DATA

OutBuf          dd      100h dup(?)
OutBufSize      dd      $-OutBuf

        dd      SIZEOF OutBuf

        .CODE

        END

[clive]

Expanding the test code a little further, to show SIZEOF going into a register. I think sizeof() is a macro/library function which I am not using. Just stock MASM.

ml  -c  -coff  -Fl  test17.asm

TEST17.ASM

Code Select Expand

        .386
        .MODEL FLAT

        .DATA

        db      1234 dup(0CCh) ; some junk to move the origin

OutBuf          dd      100h dup(?)
OutBufSize      dd      $-OutBuf

        dd      SIZEOF OutBuf

        .CODE

        mov     eax, SIZEOF OutBuf

        lea     ebx,OutBuf
        lea     ebx,OutBufSize
        mov     ebx,offset OutBuf
        mov     ebx,offset OutBufSize

        END

TEST17.LST (1st Page)

Code Select Expand

Microsoft (R) Macro Assembler Version 6.15.8803     05/24/10 12:41:56
test17.asm      Page 1 - 1


        .386
        .MODEL FLAT

00000000         .DATA

00000000  000004D2 [         db      1234 dup(0CCh) ; some junk to move the origin
    CC
   ]

000004D2  00000100 [ OutBuf          dd      100h dup(?)
    00000000
   ]
000008D2 00000400 OutBufSize      dd      $-OutBuf

000008D6  00000400         dd      SIZEOF OutBuf

00000000         .CODE

00000000  B8 00000400         mov     eax, SIZEOF OutBuf

00000005  8D 1D 000004D2 R         lea     ebx,OutBuf
0000000B  8D 1D 000008D2 R         lea     ebx,OutBufSize
00000011  BB 000004D2 R         mov     ebx,offset OutBuf
00000016  BB 000008D2 R         mov     ebx,offset OutBufSize

        END


[ragdog]

Ok Thanks for your help and time :U

I use this with "mov BufSize,sizeof OutBuf"

Greets,

[clive]

No problem.

Also if you want to look at code generated by a Microsoft C/C++ compiler, you can use the -FAcs option which generates a .COD file with ASM/C translations.

-Clive