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Re: Questions?

To: Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: Questions?
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Thu, 7 Mar 2002 14:18:11 +0100
Cc: Marc Karasek <marc_karasek@ivivity.com>, Linux MIPS <linux-mips@oss.sgi.com>
In-reply-to: <Pine.GSO.4.21.0203071410460.11036-100000@vervain.sonytel.be>; from geert@linux-m68k.org on Thu, Mar 07, 2002 at 02:11:50PM +0100
References: <20020307140754.A1817@dea.linux-mips.net> <Pine.GSO.4.21.0203071410460.11036-100000@vervain.sonytel.be>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.2.5i
On Thu, Mar 07, 2002 at 02:11:50PM +0100, Geert Uytterhoeven wrote:

> > The MIPS ABI only covers big endian systems - every "real" MIPS UNIX
> > system is big endian.  Everything else is a GNU extension.  There is
> > hardly any reason to choose a particular byteorder as usually endianess
> > swapping takes so little CPU time that it isn't even meassurable but so
> > I'm told there are exceptions.  If portability of software you're
> > going to write wrt. external data representation (disk or network) is
> > of any importance then I suggest you use a system of the opposite
> > endianess which trip problems much faster.
> 
> I really like the last part! ;-)
> 
> BTW, you forgot to mention to go for a full 64-bit port, to trip even more
> problems faster :-)

Fortunately in practice that hasn't been a minefield as big as you'd imagine.

  Ralf

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