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Re: swp/swpb instructions on ARMv7

To: KIYOHARA Takashi <kiyohara%kk.iij4u.or.jp@localhost>
Subject: Re: swp/swpb instructions on ARMv7
From: Matt Thomas <matt%3am-software.com@localhost>
Date: Wed, 27 Nov 2013 07:56:03 -0800

On Nov 27, 2013, at 3:36 AM, KIYOHARA Takashi 
<kiyohara%kk.iij4u.or.jp@localhost> wrote:

> Is there any schedule by which we add these software emulations to
> arch/arm/arm/undefined.c:undefinedinstruction()?
> Or is a different solution planned?

I've structured the swp/swpb stuff in lock.h so it can be patched
to use ldrex/strex or ldrexb/strexb as appropriate.

References:
- swp/swpb instructions on ARMv7
  - From: KIYOHARA Takashi

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