linux-kernel - Re: __LITTLE_ENDIAN vs. __LITTLE_ENDIAN

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Message-ID: <jer6k9mesf.fsf@sykes.suse.de>
Date:	Fri, 05 Oct 2007 23:29:04 +0200
From:	Andreas Schwab <schwab@...e.de>
To:	Timur Tabi <timur@...escale.com>
Cc:	Anton Altaparmakov <aia21@....ac.uk>,
	Jan Engelhardt <jengelh@...putergmbh.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: __LITTLE_ENDIAN vs. __LITTLE_ENDIAN_BITFIELD

Timur Tabi <timur@...escale.com> writes:

> The CPU shift operation, yes.  I'm talking about shift operations on
> external memory-mapped devices.

That is a property of how the device is wired to the bus.  The cpu will
always put a value of 128 on the bus such that D7 = 1 and D0-D6 = 0.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@...e.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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