linux-kernel - Re: [PATCH -tip 3/6 V4.1] x86: instruction decorder API

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Message-ID: <49E7C87E.8000202@zytor.com>
Date:	Thu, 16 Apr 2009 17:08:30 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jim Keniston <jkenisto@...ibm.com>
CC:	Masami Hiramatsu <mhiramat@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Andi Kleen <andi@...stfloor.org>, kvm@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	systemtap-ml <systemtap@...rces.redhat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	Avi Kivity <avi@...hat.com>, Roland McGrath <roland@...hat.com>
Subject: Re: [PATCH -tip 3/6 V4.1] x86: instruction decorder API

Jim Keniston wrote:
> 
> It looks like AT2(Ev,Gv) would yield the same bits as AT2(Gv,Ev).  It'd
> be nice not to lose the operand-order information.  And we'd have to
> make clear whether which notation we're using -- src,dest as in the gnu
> assembler, or dest,src as in the AMD (and Intel?) manuals.
> 

Since the information would come from the manuals, I would recommend 
following them (dst first.)

	-hpa

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