Linked by Hadrien Grasland on Thu 19th May 2011 21:31 UTC
Having read the feedback resulting from my previous post on interrupts (itself resulting from an earlier OSnews Asks item on the subject), I've had a look at the way interrupts work on PowerPC v2.02, SPARC v9, Alpha and IA-64 (Itanium), and contribute this back to anyone who's interested (or willing to report any blatant flaw found in my posts). I've also tried to rework a bit my interrupt handling model to make it significantly clearer and have it look more like a design doc and less like a code draft.
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Member since:2010-07-17
Member since:2010-03-08
On my first book, it's written "PowerPC User Instruction Set Architecture
Book I
Version 2.02", so I don't have the latest version. This may explain some things.
In the book 3, called "Operating environment architecture", there's a whole chapter (chapter 5) dedicated to interrupt and exception handling. It noticeably mentions an "external" interrupt, that seems to centralize all the external interrupts managed by implementation-specific hardware.
Edited 2011-05-20 22:02 UTC
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OSNews is a sponsor of this year's O'Reilly OSCON in Portland, Oregon, USA. A lucky OSNews reader will win a free three-day pass, including two tutorials days. To win the pass, post a comment on this story saying something about Open Source Software or OSCON. We'll pick a winner at random next week. If you don't have an OSNews account, you may email us your entry. Part of the conference is the 9th annual Open Source Awards, and today the 16th is the deadline for nominations. If you'd like to nominate an outstanding open source contributor, do it here. Read on for more information about OSCON. Update: The 20% discount code for OSNews readers is "OSN."
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Linked by Thom Holwerda on 04/24/13 22:24 UTC
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Linked by Thom Holwerda on 04/18/13 11:21 UTC
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2010-03-08
I'll check once I'm at home and have my stack of manuals at hand, but I think there was something like "PowerPC v2.1" written on the first page of the manual, so I assumed that this architecture had, like ARM, seen several revisions.
Edited 2011-05-20 11:47 UTC