From: "Frank J. Lhota" <NOSPAM.FrankLho@rcn.com>
Subject: Re: GNAT parameter passing, C-style?
Date: Fri, 26 Dec 2003 14:04:36 -0500
Date: 2003-12-26T14:04:36-05:00 [thread overview]
Message-ID: <3fec8648$0$4752$61fed72c@news.rcn.com> (raw)
In-Reply-To: 1083935.L00VuFytUj@linux1.krischik.com
"Martin Krischik" <krischik@users.sourceforge.net> wrote in message
news:1083935.L00VuFytUj@linux1.krischik.com...
> Luke A. Guest wrote:
>
> No. IBM and Microsoft for example went to what you call "Pascal"
convention
> when moving from 16bit to 32bit for OS and Compiler. They only use "C"
> convention when you explicitly request it. Or when a variable parameter
> list is used.
That's not quite correct. The 16-bit Windows API used the Pascal calling
convention for every function that did not have a variable parameter list.
In the Win32 API, Microsoft used the STDCALL calling convention for all
functions that did not have a variable parameter list. The STDCALL
convention was a mix of the Pascal and C conventions: the parameters were
pushed on the stack in reverse order (i.e. the C order), but they were
popped by the called function (as in Pascal).
As to the compiler, there are command line options that specify what calling
convention is used for a function when no convention is indicated in the
code. In the absense of said command line parameters and any specification
of calling conventions in the code, the default convention is C (parameters
pushed in reverse order, and popped by the caller).
next prev parent reply other threads:[~2003-12-26 19:04 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-26 10:37 GNAT parameter passing, C-style? Luke A. Guest
2003-12-26 14:20 ` Marin David Condic
2003-12-26 14:51 ` Hyman Rosen
2003-12-26 15:07 ` Marin David Condic
2003-12-26 15:39 ` Luke A. Guest
2003-12-26 17:03 ` Hyman Rosen
2003-12-26 17:08 ` Luke A. Guest
2003-12-26 17:27 ` Luke A. Guest
2003-12-26 18:21 ` Frank J. Lhota
2003-12-26 19:06 ` Frank J. Lhota
2003-12-31 10:23 ` Keith Thompson
2003-12-31 14:45 ` Frank J. Lhota
2003-12-31 15:05 ` Hyman Rosen
2003-12-31 16:30 ` Frank J. Lhota
2003-12-31 17:24 ` Hyman Rosen
2003-12-31 19:05 ` Frank J. Lhota
2003-12-31 19:38 ` Hyman Rosen
2003-12-31 20:47 ` Frank J. Lhota
2003-12-31 21:35 ` Hyman Rosen
2004-01-01 2:50 ` Frank J. Lhota
2004-01-01 5:20 ` Luke A. Guest
2004-01-01 16:06 ` Hyman Rosen
2004-01-01 16:32 ` Frank J. Lhota
2004-01-01 16:43 ` Hyman Rosen
2004-01-02 0:24 ` Frank J. Lhota
2004-01-02 4:09 ` Hyman Rosen
2004-01-02 13:29 ` Frank J. Lhota
2004-01-01 5:17 ` Luke A. Guest
2004-01-01 5:09 ` Luke A. Guest
2004-01-02 1:17 ` tmoran
2004-01-01 17:18 ` Jano
2004-01-02 0:25 ` Frank J. Lhota
2004-01-07 6:37 ` Dave Thompson
2004-01-01 3:38 ` Marin David Condic
2004-01-01 5:28 ` Luke A. Guest
2004-01-01 14:17 ` Marin David Condic
2004-01-01 16:20 ` Jeff C,
2004-01-02 13:47 ` Marin David Condic
2004-01-05 21:06 ` Keith Thompson
2004-01-06 3:42 ` Robert I. Eachus
2004-01-06 20:54 ` Keith Thompson
2004-01-06 23:45 ` Robert I. Eachus
2004-01-06 13:46 ` Frank J. Lhota
2003-12-27 14:22 ` Marin David Condic
2003-12-26 17:10 ` Martin Krischik
2003-12-26 19:04 ` Frank J. Lhota [this message]
2003-12-26 18:01 ` Georg Bauhaus
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