Don't forget that the Zilog Z-130 was based on the Bell chip (so it was
using the same instruction set as the 3b2).
At Concept Omega we had some Z-8000 boxes (with fans so loud they sounded
as if they were DC-9s taxiing for takeoff).
Anybody remember? ISTR the 3b2 having a muddled byte sex.
--------------------
John R. Campbell, Speaker to Machines (GNUrd) {813-356|697}-5322
Adsumo ergo raptus sum
IBM Certified: IBM AIX 4.3 System Administration, System Support
http://packrat.tampa.ibmus2.ibm.com/~soupjrc/
Backup: Toby Schmeling {813-356|697}-5233
"Fargusson.Alan"
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
tb.ca.gov> cc:
Sent by: Linux on Subject: Re: [LINUX-390] Fwd: Re: big
and little endian
390 Port
<[EMAIL PROTECTED]
IST.EDU>
08/06/2003 03:54
PM
Please respond to
Linux on 390 Port
I agree that IBM should have used the Z8000. However, I know that Zilog
could not have produced enough working chips. In the 1981-1982 period we
had a hard time getting enough working chips for our own internal use. The
ones we got were much faster than the 8086 though. Our Zeus (Unix) systems
made MS-DOS on a PC look slow. OTOH even our Z80 system was faster then a
PC. I think we were making 6MHz Z80s in 1981. I think our Z8000s were
6MHz or 8MHz.
-----Original Message-----
From: John Summerfield [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 06, 2003 10:53 AM
To: [EMAIL PROTECTED]
Subject: Re: Fwd: Re: big and little endian
On Wed, 6 Aug 2003, Fargusson.Alan wrote:
> I think that the 68000 is a simple bigendian. On the other hand I worked
Yeah. I've got some round here: they're in the early Macs. I've also got
a newer version of it (SMT) inside a JTEC terminal controller. It's a
single-board computer, the sort of thing we'd have mortgaged our home for
in the early 70s.
The Zilog Z8000 was another big-endian CPU. A shame, I think, that IBM
didn't use it instead of the 808x. My brain is definitely big-endian,
and MASM confused things even worse by printing its bject code in
"human-friendly" big-endian format with the result the object code
printed was not what was actually generate.
--
Cheers
John.
Join the "Linux Support by Small Businesses" list at
http://mail.computerdatasafe.com.au/mailman/listinfo/lssb
Copyright John Summerfield. Reproduction prohibited.
