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From: peter@guardian.UUCP (peter)
Newsgroups: comp.realtime
Subject: Re: Language constructs for interrupt facility
Message-ID: <332@guardian.UUCP>
Date: 15 Dec 89 17:36:03 GMT
References: <29160@shemp.CS.UCLA.EDU> <961@abvax.UUCP> <836@trlluna.trl.oz>
Reply-To: Peter Plamondon@.UUCP (Peter Plamondon @langlab1)
Organization: Intel Development Tools Operation, Hillsboro OR
Lines: 20

In article <29160@shemp.CS.UCLA.EDU> cshen@maui.cs.ucla.edu (Chien Chung Shen)
writes:
>I am interested in language constructs for interrupt facility.
>Ada has "address clauses" and entry calls. Are there any other
>languages which support interrupt facility and how are they
>implemented? Any direction is appreciated.

Intel's PL/M and C compilers allow you to identify procedures as interrupt
handlers, using PROCEDURE INTERRUPT and #pragma interrupt, respectively.

For the 8086/80186 et al, the interrupt handler is associated with a
particular interrupt level.  For the 80286 and above, the system builder
(e.g., Intel's BLD386) must make this association by setting up an
appropriate entry in the interrupt descriptor table (IDT).
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Peter Plamondon, Intel Corp, 5200 NE Elam Young Pkwy, Hillsboro, OR  97124-6497
Internet: peter@langlab1.hf.intel.com                           +1 503-696-5219
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