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From: Ralph Blach <rcblach@raleigh.ibm.com>
To: Holger Bettag <hobold@Informatik.Uni-Bremen.DE>
Cc: Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>
Subject: Re: ppc LE questions (seeking help hand info pointers)
Date: Fri, 21 Sep 2001 06:38:23 -0400	[thread overview]
Message-ID: <3BAB189F.5B5B19CD@raleigh.ibm.com> (raw)
In-Reply-To: 8xlmj9psnw.fsf@s62.informatik.uni-bremen.de


One the 405 processors, with the endian bit set, the data is will be
true little endian.

Chip

Holger Bettag wrote:
>
> Mark Salisbury <mbs@mc.com> writes:
>
> [... linux in ppc little endian mode ...]
> > well, this is in the context of a multi-CPU type (x86/ppc, sparc/ppc,
> > ppc/ppc, mips/ppc) shared memory multicomputer.
> >
> > when dealing w/ direct mapped, shared memory, uniformity of endian-ness
> > makes many multicomputer problems easier to solve.(not to mention easier
> > for the customer to program...)
> >
> You are aware that a PPC in little endian mode is merely tricking with the
> low order address bits, but does not actually lay out its data in a little
> endian fashion in physical memory?
>
>   Holger
>

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  parent reply	other threads:[~2001-09-21 10:38 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-20 15:42 ppc LE questions (seeking help hand info pointers) Mark Salisbury
2001-09-20 15:58 ` Tom Rini
2001-09-20 16:07   ` Geert Uytterhoeven
2001-09-20 16:12     ` Tom Rini
2001-09-20 17:10       ` Brad Boyer
2001-09-20 18:32         ` Mark Salisbury
2001-09-20 19:29           ` Holger Bettag
2001-09-20 19:35             ` David Edelsohn
2001-09-20 20:19             ` Mark Salisbury
2001-09-21  1:46               ` Timothy A. Seufert
2001-09-21  3:54                 ` Dan Malek
2001-09-21  7:24                   ` Geert Uytterhoeven
2001-09-21  7:47                     ` Dan Malek
2001-09-21  7:50                       ` Geert Uytterhoeven
2001-09-21  8:19                         ` Dan Malek
2001-09-21 17:01                   ` Ralph Blach
2001-09-21 17:35                     ` David Edelsohn
2001-09-21 18:58                     ` David Edelsohn
2001-09-21 20:22                     ` Dan Malek
2001-09-21 20:29                     ` Benjamin Herrenschmidt
2001-09-21 20:42                       ` Benjamin Herrenschmidt
2001-09-21  7:22                 ` Geert Uytterhoeven
2001-09-21  9:26               ` keyb Giuliano Pochini
2001-09-21 10:38             ` Ralph Blach [this message]
2001-09-20 20:01           ` ppc LE questions (seeking help hand info pointers) Tony Mantler
2001-09-20 18:28   ` Mark Salisbury
2001-09-20 19:12     ` Tom Rini
2001-09-20 22:22 ` Dan Malek
2001-09-21  5:45 ` Troy Benjegerdes
2001-09-28  6:37 ` Paul Mackerras
  -- strict thread matches above, loose matches on Subject: below --
2001-09-21  5:28 Albert D. Cahalan
2001-09-21  6:10 ` Dan Malek
2001-09-21 10:59   ` Ralph Blach
2001-09-21 18:48 Albert D. Cahalan
2001-09-22  0:22 ` Timothy A. Seufert
2001-09-22 20:06   ` Albert D. Cahalan
2001-09-24 17:10   ` Mark Salisbury
2001-09-22 14:23 ` Holger Bettag
2001-09-22 20:26   ` Timothy A. Seufert

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