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SubjectRe: [ORLinux] [PATCH] OpenRISC: Handle r0 with care
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


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