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From: Terry Lambert <terry@cs.weber.edu>
Newsgroups: comp.sys.mac.misc,comp.sys.mac.system,comp.sys.mac.hardware,comp.unix.bsd.freebsd.misc
Subject: Re: BSD UNIX on a PowerMac??
Date: 2 Oct 1995 19:19:07 GMT
Organization: Utah Valley State College, Orem, Utah
Lines: 36
Message-ID: <44pdvb$ap@park.uvsc.edu>
References: <DEr9vL.vA@yedi.iaf.nl> <44msfr$1bd6@hearst.cac.psu.edu>
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emb121 (Eric Bennett) wrote:
] From the Linux/PowerPC FAQ:
]
] ========================================================================
] =============
] Is Linux/PowerPC little or big endian ?
]
] Big. PowerPCs take their instructions big end first, but can be set to
] take their data either way. Set for little-endian data, a PowerPC slows
] down about 3% (this number is unconfirmed). Linux/PowerPC is big-endian
] for the following reasons:
]
] 1) The PowerMac operating system is big-endian;
I was quoting from an article in comp.sys.powerpc as to the Mac's
byte order.
] 2) AIX, the IBM POWER/PowerPC operating system, is big-endian;
] 3) Net-order is big-endian;
] 4) It is a physical fact, like gravity, that big-endian is The Right
> Way.
> ========================================================================
> =============
>
> Does this make Linux/PPC and AIX "wrong?" :) Anybody know of the 68030
> Mac port of
> BSD is also big-endian?
Yes, it's Motorolla byte order (Motorolla 68k is your hint 9-)).
Terry Lambert
terry@cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.