Subject: stmw/lmw [Was: CVS commit: src/sys/arch/powerpc/powerpc]
To: None <matt@netbsd.org>
From: Simon Burge <simonb@wasabisystems.com>
List: source-changes
Date: 08/04/2003 11:31:48
Matt Thomas wrote:
> Module Name: src
> Committed By: matt
> Date: Mon Aug 4 00:32:50 UTC 2003
>
> Modified Files:
>
> src/sys/arch/powerpc/powerpc: locore_subr.S trap_subr.S
>
> Log Message:
>
> Eliminate stmw/lmw substituting the individual load/store instructions.
Does this have any measurable impact on trap response and context switch
times (simply because of more instruction fetches)? It's also larger
code, so we have greater I$ pollution...
Simon.
--
Simon Burge <simonb@wasabisystems.com>
NetBSD Support and Service: http://www.wasabisystems.com/