From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] ARM7TDMI emulation
Date: Mon, 2 Jul 2007 14:40:24 +0100 [thread overview]
Message-ID: <200707021440.25061.paul@codesourcery.com> (raw)
In-Reply-To: <200707021527.54435.uli@suse.de>
On Monday 02 July 2007, Ulrich Hecht wrote:
> Hi!
>
> This patch adds ARM7TDMI emulation with Thumb v1 (no BLX, no BKPT, ignore
> bit 0 on POP PC) and without CP15.
ARM_FEATURE_THUMB1 is a bad name for this. Thumb-1 covers both v4t and v5t.
Thumb-2 is a completely new architecture revision which adds 32-bit
instructions.
You should add/use ARM_FEATURE_V5/ARCH(5) instead.
For added confusion some older documentation refers to v5t as "thumb2", or the
second revision of the Thumb ISA. This should be ignored :-)
The ARM7TDMI implements the base updated abort model. You should either
implement that, or pick a core (eg. 920t) that uses the base restored abort
model.
Paul
next prev parent reply other threads:[~2007-07-02 13:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-02 13:27 [Qemu-devel] [PATCH] ARM7TDMI emulation Ulrich Hecht
2007-07-02 13:40 ` Paul Brook [this message]
2007-07-02 16:14 ` Ulrich Hecht
2007-07-03 14:45 ` Ulrich Hecht
2009-06-15 19:11 ` Filip Navara
2009-06-16 17:25 ` Paul Brook
2009-06-16 19:02 ` Jamie Lokier
2009-06-16 19:05 ` Paul Brook
2009-06-16 20:49 ` Filip Navara
2009-06-16 21:47 ` Filip Navara
2009-06-17 9:55 ` Filip Navara
2009-06-17 10:24 ` Filip Navara
-- strict thread matches above, loose matches on Subject: below --
2009-07-15 12:08 Filip Navara
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