Date: Sun, 29 Aug 1999 14:24:50 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: John Scott Kjellman <jkjellman AT ameritech DOT net>
cc: djgpp AT delorie DOT com
Subject: Re: How to check the carry flag? (long)
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On Tue, 16 Feb 1999, John Scott Kjellman wrote:

> Is there some way to install a real mode handler without
> using the wrapper code?

Since the real-mode handler is called from real-mode, it cannot be a 
simple PM code located at a PM address, above 1MB mark, because real-mode 
addresses cannot express anything beyond 1MB.  You need either to copy 
your code into a buffer allocated in conventional memory, or use the DPMI 
function to allocate a callback, which is kind of wrapper (it switches 
the CPU into PM and calls your handler).