From: a2o1 AT my-dejanews DOT com
Newsgroups: comp.os.msdos.djgpp
Subject: Exported Assembly Functions
Date: Sat, 24 Apr 1999 17:58:08 GMT
Organization: Deja News - The Leader in Internet Discussion
Lines: 28
Message-ID: <7ft0nf$e0a$1@nnrp1.dejanews.com>
NNTP-Posting-Host: 209.103.51.8
X-Article-Creation-Date: Sat Apr 24 17:58:08 1999 GMT
X-Http-User-Agent: Mozilla/4.51 [en] (Win95; I)
X-Http-Proxy: 1.0 x17.dejanews.com:80 (Squid/1.1.22) for client 209.103.51.8
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

OK.  I picked up a little tutorial on NASM/DJGPP and started programming.  It
works pretty good now that I understand it.  Anyways, after a while I started
writing my own Sprite Drawing Routine (using the book PC Game Programming
Explorer by Dave Roberts and the Allegro Gaming Library).  I then compiled it
like this:

nasm -f coff assembly.asm

it made a file called assembly.o So I was happy and delighted that it
actually compiled.  Now I put the extern blah blah blah code at the top of my
sprite drawing source.	Recompiled using new MAKEFILE that also contained
assembly.o as an object file.  The new BITMAP.CC also compiled fine.

Now The final step (Testing the new Routine).  This is the part where it
failed.  Using the new class, I made a simple program to draw a simple PCX
file onto the screen.  Saved it.  THen compiled using:

gcc -g test.cc grfx.a -o test.exe

this generated the problem: grfx.a(bitmap.o): In function
`GBitmap::Draw(unsigned int, unsigned in t, GScreen *)': bitmap.cc:20:
undefined reference to `DrawBitmap(unsigned int, unsigned int, uns igned char
*, unsigned char *, unsigned int)'

Why does it give me this problem now???

-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/       Search, Read, Discuss, or Start Your Own