From: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
To: Richard Weinberger <richard@nod.at>
Cc: jonas@southpole.se, linux-kernel@vger.kernel.org, linux@openrisc.net
Subject: Re: [ORLinux] [PATCH] OpenRISC: Handle r0 with care
Date: Tue, 6 Mar 2012 07:52:11 +0200 [thread overview]
Message-ID: <20120306055211.GA24532@chokladfabriken.org> (raw)
In-Reply-To: <1330981627-16121-1-git-send-email-richard@nod.at>
On Mon, Mar 05, 2012 at 10:07:07PM +0100, Richard Weinberger wrote:
> @@ -185,8 +186,8 @@ handler: ;\
> /* ---[ 0x100: RESET exception ]----------------------------------------- */
>
> EXCEPTION_ENTRY(_tng_kernel_start)
> + l.andi r0,r0,0
> l.jal _start
> - l.andi r0,r0,0
>
> /* ---[ 0x200: BUS exception ]------------------------------------------- */
>
The OpenRISC architecture features delay slots, so you probably don't want
to do that.
Stefan
next prev parent reply other threads:[~2012-03-06 5:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-05 21:07 Richard Weinberger
2012-03-06 5:52 ` Stefan Kristiansson [this message]
2012-03-06 6:09 ` Jonas Bonn
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