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/