To:	djgpp AT delorie DOT com
Date:	Tue, 1 Sep 1998 16:42:06 -0500
Subject:	HW Interrupts
Message-ID:	<19980901.164210.6318.1.zixyer@juno.com>
From:	zixyer AT juno DOT com (Zixyer S Qwerty)

I'm porting a program that hooks int 9 and chains to the initial
interrupt only under certain conditions (by executing a jmp instruction).
 How would you do this in DJGPP?  Also, the FAQ says that in practice
it's impossible to lock all the memory that an interrupt handler touches
if it's written in C.  Is this true?  TIA.

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