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X-Authentication-Warning: | delorie.com: mail set sender to djgpp-bounces using -f |
Date: | Sun, 25 May 2008 17:33:36 -0400 |
Message-Id: | <200805252133.m4PLXarG015150@envy.delorie.com> |
From: | DJ Delorie <dj AT delorie DOT com> |
To: | djgpp AT delorie DOT com |
In-reply-to: | <20080525194916.3DD6C5702E7@panel.abserver.es> |
(josepmaria AT turomas DOT com) | |
Subject: | Re: 30K Timer tic interrupt handler |
References: | <20080525194916 DOT 3DD6C5702E7 AT panel DOT abserver DOT es> |
Errors-To: | nobody AT delorie DOT com |
X-Mailing-List: | djgpp AT delorie DOT com |
X-Unsubscribes-To: | listserv AT delorie DOT com |
> A simple solution is to write a resident program with a 16 bit > compiler (like borladc). You can pass information with your 32 bits > progam and your 16 bit program via software interrupts. You can do 16 bit handlers with djgpp, no need to get a separate compiler for it. The problem here is that at 30,000 interrupts per second, you need both a 16 bit and a 32 bit handler, so that interrupts never cause a mode switch.
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