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: Sat, 29 Apr 2000 11:52:21 -0400
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

My screen mode-change function defines a descriptor for the video buffer and
creates variables to store both the descriptor and the address of an off-screen
temporary video buffer.  But when I load it in my asm code, I get 0:0 and the
program is forced to quit.  The off-screen buffer is supposed to be defined on a
per-program basis and, therefore, has to be external to the library.

BTW, How do I change the screen mode without an INT 10h or int86x?

Steamer wrote:

> Joseph Rose wrote:
>
> >I need to access in my asm code a variable defined by the C++ code.
> >I need to know about this "name-mangling!"
>
> I don't think C++ name-mangling applies to variables, only functions (to cope
> with overloading).  But if you want to see what name the compiler is really
> giving to anything then just do
>
>     objdump --syms
>
> on the object file it produces.
>
> S.