dev-cpp-users

[Dev-C++] inline assembly in winnt.h

[Thoralf S. <tho...@ya...>]

Hi there,


I hope this is the right place to ask this question -
I've been searching both the archive and the web, to
no avail ...

I'm just trying to compile a project (GEM for Pure
Data, CVS version, see
http://gem.iem.at/download.html#CVS) that involves
some DirectShow stuff. Of course, a bunch of M$
libraries is needed for this, and Dev-C++ (or, for
that matter, MinGW or g++) chokes on some inline
assembly in winnt.h (lines 588 ff.), which is part of
the MS Platform SDK.

Here's the relevant code:

#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning(disable:4035 4793)               //
re-enable below

__inline ULONGLONG
NTAPI
Int64ShllMod32 (
    ULONGLONG Value,
    DWORD ShiftCount
    )
{
    __asm    {
        mov     ecx, ShiftCount
        mov     eax, dword ptr [Value]
        mov     edx, dword ptr [Value+4]
        shld    edx, eax, cl
        shl     eax, cl
        }
}

 and the error messages:

make.exe -f "D:\Dokumente und Einstellungen\VJ\Eigene
Dateien\GEM\Gem\src\Makefile.win" all
g++.exe -c Pixes/DSgrabber.cpp -o Pixes/DSgrabber.o
-I"."  -I"./Base"  -I"../../pd/src" 
-I"../../GemLibs/freetype2/include" 
-I"../../GemLibs/tiff/libtiff"  -I"../../GemLibs/JPEG"
 -I"../../GemLibs/wintab/include" 
-I"../../GemLibs/FTGL/include" 
-I"D:/Programme/Microsoft Platform
SDK/Samples/Multimedia/DirectShow/BaseClasses" 
-I"D:/Programme/Microsoft DirectX 9.0 SDK (February
2005)/Include"  -I"D:/Programme/Microsoft Platform
SDK/Include"  -D__GNUWIN32__ -mcpu=pentiumpro
-D_M_IX86=600 -W -finline-functions -DNDEBUG -DWIN32
-D_WINDOWS -DNT -D_LANGUAGE_C_PLUS_PLUS
-DWIN32_LEAN_AND_MEAN -DGEM_INTERNAL   -O2 -march=i686
-msse

In file included from D:/Programme/Microsoft Platform
SDK/Include/windef.h:176,
                 from
d:/programme/Dev-Cpp/Bin/../lib/gcc/mingw32/3.4.2/../../../../include/excpt.h:20,
                 from D:/Programme/Microsoft Platform
SDK/Include/windows.h:157,
                 from D:/Programme/Microsoft Platform
SDK/Samples/Multimedia/DirectShow/BaseClasses/streams.h:41,
                 from Pixes/DSgrabber.cpp:13:
D:/Programme/Microsoft Platform SDK/Include/winnt.h:
In function `ULONGLONG Int64ShllMod32(ULONGLONG,
DWORD)':
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:588: error: expected `(' before
'{' token

D:/Programme/Microsoft Platform
SDK/Include/winnt.h:588: error: expected asm body
before '{' token

D:/Programme/Microsoft Platform
SDK/Include/winnt.h:589: error: `mov' undeclared
(first use this function)
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:589: error: (Each undeclared
identifier is reported only once for each function it
appears in.)
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:589: error: expected `;' before
"ecx"
D:/Programme/Microsoft Platform SDK/Include/winnt.h:
In function `LONGLONG Int64ShraMod32(LONGLONG,
DWORD)':
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:604: error: expected `(' before
'{' token
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:604: error: expected asm body
before '{' token
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:605: error: `mov' undeclared
(first use this function)
D:/Programme/Microsoft Platform
SDK/Include/winnt.h:605: error: expected `;' before
"ecx"

It would be really great if someone could shed some
light on this ... many thanks in advance,

Thoralf.


	
	
		
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Re: [Dev-C++] inline assembly in winnt.h

[Alfred P. R. <al...@ya...>]

Hi Thoralf,
 
Possibly a missing semi-colon?
 
Try:
    DWORD ShiftCount
    );
Instead of 
    DWORD ShiftCount
    )

I'm basing that on the first error, and the complaints of missing ";".  Possibly a problem with the formatting of Int64ShllMod32 parameters?

Thoralf Schulze <tho...@ya...> wrote:

Hi there,


I hope this is the right place to ask this question -
I've been searching both the archive and the web, to
no avail ...

I'm just trying to compile a project (GEM for Pure
Data, CVS version, see
http://gem.iem.at/download.html#CVS) that involves
some DirectShow stuff. Of course, a bunch of M$
libraries is needed for this, and Dev-C++ (or, for
that matter, MinGW or g++) chokes on some inline
assembly in winnt.h (lines 588 ff.), which is part of
the MS Platform SDK.

Here's the relevant code:

#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning(disable:4035 4793) //
re-enable below

__inline ULONGLONG
NTAPI
Int64ShllMod32 (
ULONGLONG Value,
DWORD ShiftCount
)
{
__asm {
mov ecx, ShiftCount
mov eax, dword ptr [Value]
mov edx, dword ptr [Value+4]
shld edx, eax, cl
shl eax, cl
}
}

and the error messages:

<snip>
D:/Programme/Microsoft Platform SDK/Include/winnt.h:588: error: expected `(' before
'{' token

D:/Programme/Microsoft Platform SDK/Include/winnt.h:588: error: expected asm body before '{' token

D:/Programme/Microsoft Platform SDK/Include/winnt.h:589: error: `mov' undeclared
(first use this function)

D:/Programme/Microsoft Platform SDK/Include/winnt.h:589: error: (Each undeclared
identifier is reported only once for each function it appears in.)
D:/Programme/Microsoft Platform SDK/Include/winnt.h:589: error: expected `;' before
"ecx"
<snip>




Alfred P. Reaud
 

Re: [Dev-C++] inline assembly in winnt.h

[Lord S. <lor...@gm...>]

How to use assembly with Dev-C++ ?

The "GNU as" assembler uses AT&T syntax (not Intel).
Here's an example of such a syntax :

// 2 global variables
int AdrIO;
static char ValIO;

void MyFunction(..........)
{
__asm("mov _AdrIO, %dx") ; // loading 16 bits register
__asm("mov _ValIO, %al") ; // loading 8 bits register
/*
Don't forget the underscore _ before each global variable names !
*/
__asm("mov %ax,%dx") ; // AX --> DX
}

That is quoted directly from the DevC++ help files.

I think that's what you're talking about, but just for clairity in our 
archives, I'd like to post that (since I refer back to this stuff quite 
often)

Sorry if someone already said that - I'm a bit bleary-eyed right now at 2300 
at night ;)  (my laptop's not connected right now, so I'm using the "send 
later" button in Outlook Express - so if the message is postmarked 
differently, I'm not off my rocker - yet)

Happy coding and may the Force be with you!