Date:	Mon, 20 May 1996 20:58:37 -0400
From:	dj (DJ Delorie)
Message-Id:	<199605210058.UAA22650@delorie.com>
To:	applea AT weiss DOT che DOT utexas DOT edu
CC:	djgpp AT delorie DOT com
In-reply-to:	<4nqe0f$som@geraldo.cc.utexas.edu> (applea@weiss.che.utexas.edu)
Subject:	Re: Making the nearptr hacks use longs.

> unsigned long *videoptr = (unsigned long *)0xA0000;
>       videoptr[4*i + __djgpp_conventional_base] = sbuffptr[i];

Don't forget that C scales your indexes.  The above expression
is equivalent to this:

	*(long *)((char *)videoptr + 16*i + 4*__djgpp_conventional_base)

Figure out the nearptr math first, *then* convert to a long*.

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