From: Jurij Smakov <jurij@lokmail.net>
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] 720 - some progress
Date: Thu, 27 Sep 2001 06:03:56 -0400 [thread overview]
Message-ID: <200109271003.GAA02353@mail.lokmail.net> (raw)
And another (very weird) thing... I've manually decoded the instruction
(036008A4), which produces the trap 11 (hopefully, correctly :-).
It turns out to be an MFCTL instruction to load contents of control
register 27 into a general register 4. According to the docs for this
command ("PA-RISC 1.1 Architecture and Instruction Set Reference Manual",
Third edition, page 5-151):
"CR11, CR26 and CR 27 may be read at ANY privilege level."
So, unless I am missing something, this instruction SHOULD NOT produce
trap 11. Is it some hardware feature of 720 or my manual disassembling
skills must be improved? ;-).
Best regards,
Jurij
next reply other threads:[~2001-09-27 10:04 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-27 10:03 Jurij Smakov [this message]
2001-09-27 11:15 ` [parisc-linux] 720 - some progress Jochen Friedrich
-- strict thread matches above, loose matches on Subject: below --
2001-10-01 16:06 Michael S. Zick
2001-09-30 7:12 John Marvin
[not found] <200109280925.FAA18777@mail.lokmail.net>
2001-09-28 16:24 ` Albert Strasheim
2001-09-28 18:48 ` Jochen Friedrich
2001-09-29 17:48 ` Carlos O'Donell Jr.
2001-09-27 16:32 Jurij Smakov
2001-09-27 19:18 ` Albert Strasheim
2001-09-27 14:42 Jurij Smakov
2001-09-28 8:49 ` Jochen Friedrich
2001-09-28 9:19 ` Matthew Wilcox
2001-09-28 8:54 ` Matthew Wilcox
2001-09-29 6:00 ` Albert Strasheim
2001-09-29 8:30 ` Albert Strasheim
2001-09-29 10:01 ` Albert Strasheim
2001-09-29 11:17 ` Jochen Friedrich
2001-09-29 11:45 ` Albert Strasheim
2001-09-29 13:23 ` Jochen Friedrich
2001-09-29 18:36 ` Michael S.Zick
2001-09-29 22:19 ` Michael S.Zick
2001-09-27 12:23 Jurij Smakov
2001-09-27 13:04 ` Albert Strasheim
2001-09-27 13:45 ` Matthew Wilcox
2001-09-27 9:09 Jurij Smakov
2001-09-27 11:11 ` Jochen Friedrich
2001-09-26 22:26 Jochen Friedrich
2001-09-27 0:07 ` Albert Strasheim
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