From: sandmann AT clio DOT rice DOT edu (Charles W. Sandmann)
Subject: Re: Interrupt routines in 1.11
To: djgpp AT sun DOT soe DOT clarkson DOT edu (DJGPP Mailing List)
Date: Thu, 16 Dec 1993 14:21:16 -0600 (CST)

>From sandmann Thu Dec 16 14:18:43 1993
Subject: Re: Interrupt routines in 1.11
To: mjo AT mrao DOT cam DOT ac DOT uk (Martin Oldfield)
Date: Thu, 16 Dec 1993 14:18:43 -0600 (CST)

> Are there any restrictions on length and the position of subroutines
> called by an interrupt and hooked in with a call to the wonderful
> _go32_dpmi_chain_protected_mode_interrupt_vector() subroutine ?
> 
> We've got some code that works wonderfully well with a small interrupt
> handler but breaks when the handler grows or moves away from the
> _go32_....() call.

Well, the DPMI spec says that if this is a hardware interrupt then you
must lock these pages in memory.  This might be tricky ...