Power chips are not microcoded, so this would not be possible.
-----Original Message-----
From: David Goodenough [mailto:[EMAIL PROTECTED]
Sent: Friday, August 08, 2003 8:11 AM
To: [EMAIL PROTECTED]
Subject: Re: IBM's Power5+ to hit 3GHz
This assumes that all the Power PC chips will have the same microcode. I
would suspect that the three different lines will maintain their own
microcode, and thus their own instruction set. It will just be the core
silicon that is common.
David
"Fargusson.Alan"
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
tb.ca.gov> cc:
Sent by: Linux on Subject: Re: IBM's Power5+ to hit 3GHz
390 Port
<[EMAIL PROTECTED]
IST.EDU>
08/08/2003 16:24
Please respond to
Linux on 390 Port
Software for the Macintosh was, and is, mostly written in C (or C++). This
made the switch much easier, especially since much of the OS itself was
written in C++. Actually I think there was a lot of old Pascal code that
was re-written in C++ for the PPC port. I am not sure what OS/400 was
written in originally, but it is documented in "Inside the AS/400" by
Soltis (sp?) that the entire OS was re-written in C++ for the Power port.
Much of z/OS seems to be written in assembly language. I wonder how much
work it would be to re-write this into C, or any other language. I think
that interpreting 370 machine code would be too slow, even on a 3GHz
system. It would almost be like running Hercules on a 3GHz Pentium.
I am thinking that the Register may have misunderstood IBMs statement.
-----Original Message-----
From: Jim Keohane [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 07, 2003 7:27 PM
To: [EMAIL PROTECTED]
Subject: Re: IBM's Power5+ to hit 3GHz
John,
Power5+, Power6 -> zSeries is what I've been waiting for years.
I recall how cleanly Apple ripped out M680x0 and plugged in PowerPC
without missing a beat. I recall the AS/400 having its s/38-like chip being
replaced by RS/6000 family. I remember PC370 being partly a microcoded
M680x0 with S/370 instruction support.
One processor family across the board. Way to go, IBM!
- Jim <an unrepentant Mac fan> Keohane
At 21:07 2003-08-07, you wrote:
>http://www.theregister.co.uk/content/3/32232.html
>
>I promise you, this is relevant to this group;-)
>
>
>
>--
>
>
>Cheers
>John.
>
>Join the "Linux Support by Small Businesses" list at
>http://mail.computerdatasafe.com.au/mailman/listinfo/lssb
>Copyright John Summerfield. Reproduction prohibited.
