From: Joseph Rose <jorose AT mail DOT gis DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: 3rd Try: Maybe an asm problem? (Problems linking)
Date: Fri, 28 Apr 2000 20:26:36 -0400
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Thank you all for helping.  It compiles now, and I'm about to change my asm code to
preserve the EBX and EDI registers.  BTW, Draw_Line_HorizHere is meant to be called
internally by other asm graphics functions only.

Steamer wrote:

> Joseph Rose wrote:
>
> >"Alexei A. Frounze" wrote:
> >
> >> AFAIK you should add some characters to your external ASM subroutines... These
> >> characters must represent type of passed parameters. I don't remember how
> >> exactly, but that might help you. I don't add these chracters with plane C, but
> >> parhaps they are needed for C++.
> >>
> >
> >I don't know about these characters.  All I know is to add an underscore to the
> >beginning of function names.
>
> This is the name-mangling I mentioned.  C++ does it, but C doesn't.
> You could change your asm, but the simplest thing is to change your
> C++ header files:
>
> extern "C" {
>  extern void SetGrMode (void);
>  extern void Draw_Line_Horiz (int X, int Y, int Len, char Col);
>  extern void Draw_Line_Vert (long X, long Y, short Len, char Col);
>  extern void Draw_Tri (long X1, long Y1, long X2, long Y2, long X3, long Y3,
> char Col);
> }
>
> >BTW: I'm new to the internet.  What are "AFAIK," "IMHO," etc.?
>
> AFAIK = as far as I know
> IMHO = in my humble opinion
>
> S.