From: "Legolas" <someone AT somewhere DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Nearptr putpixel method?
Date: Tue, 24 Aug 1999 17:13:10 +0200
Organization: Adamastor
Message-ID: <7pucrs$15b$1@news.adamastor.ac.za>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi

I'm certain this question has been asked many times before, but I wasn't
around to read them then. So here goes:
How do you do that (apparently DANGEROUS) nearptr putpixel method, in mode
13x, that is described in the DJGPP FAQ? I think I'm doing everything the
way I'm supposed to, but no pixels appear onscreen. I have downloaded a file
that tells you how to do it, but it did not work. The code that I downloaded
follows:

__________________________________________
 #include <go32.h>
 #include <dpmi.h>
 #include <sys/nearptr.h>

 unsigned char *videoptr = (unsigned char *)0xA0000;

 __djgpp_nearptr_enable();
 videoptr[y*320 + x + __djgpp_conventional_base] = color;
 __djgpp_nearptr_disable();

__________________________________________
Don't try to convince me to do this in a different way that is "almost as
fast", just humour me please. I need to do this. (Unless you wish to provide
me with even faster assembler code...)

Thanks