Newsgroups: comp.sys.transputer
From: Nicolas Iselin <iselin@iam.unibe.ch>
Subject: Re: Interrupt Line Support for the st20450
Organization: University of Berne
Date: Mon, 11 Aug 1997 08:55:42 +0200
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Message-ID: <33EEB76E.6156@iam.unibe.ch>

Pete Kiln wrote:
> 
> Is there any direct support for the interrupt inputs within OCCAM or is
> this a C only feature?.

I am out of transputer business since quite a long time, but with
the old T805 devices you just declared a channel and
PLACEd it on adress #8 (eight words above MemStart, the reserved
address for the event pin). The interrupt handler was then 
coded as a parallel high priority process starting with 
an input on this channel. You could not receive any data
(in fact it was a 0-byte message), but when the 
interrupt occurred this process was scheduled.

Nic iselin@iam.unibe.ch