8 Jun
2000
8 Jun
'00
3:02 p.m.
And in those cases, you loose as well. The RX02 uses a
micro-engine to
control the drive. No chip controller can switch density in the middle of
the track, so RX02 floppies will forever be in the domain of RX02 drives
only.
IF you must transfer RX02 resident files to a non dec system the only
choice is another RX02 or compatable (DSD880 and friends). However,
if that is available the disk can be reformatted to SSSD, data written to
it and then standard floppy contoller chips and systems that can handle 8"
media will work just fine.
RX50 and RX33 formatting do not have this liability.
Allison
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From Thor Lancelot Simon <tls(a)rek.tjls.com> Fri
Jun 9 01:36:34 2000
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Date: Thu, 8 Jun 2000 11:36:34 -0400
From: Thor Lancelot Simon <tls(a)rek.tjls.com>
To: Michael Sokolov <msokolov(a)ivan.Harhan.ORG>
Cc: pups(a)minnie.cs.adfa.edu.au
Subject: Re: Newer BSD thingies....nice but then again....
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In-Reply-To: <0006072246.AA16781(a)ivan.Harhan.ORG>; from msokolov(a)ivan.Harhan.ORG on
Wed, Jun 07, 2000 at 05:46:55PM -0500
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On Wed, Jun 07, 2000 at 05:46:55PM -0500, Michael Sokolov wrote:
jkunz(a)unixag-kl.fh-kl.de wrote:
My experience with compilers on the VAX leads me to believe that the
substantial "savings" seen over NetBSD or post-4.3 BSD distributions here
is almost entirely due to the compiler and options used. If Quasijarus
builds like CSRG 4.3 did, with pcc, it can't even use the optimizer *at all*
for the kernel build, due to severe bugs; either way, pcc runs a lot faster
than gcc though it generates code that runs a whole lot slower.
I'd be willing to bet that gcc -O0 would build NetBSD at least ten times
as fast as gcc -O2; the VAX is (as we all know ;-)) a "rather complex"
processor, with "rather complex" instruction patterns, gcc is not the
swiftest of compilers in the first place, and it does a *lot* of work.
Slow machines *are* good for demonstrating how good your compiler is;
I recall that rebuilding "compress" with gcc on my 750, way back when,
pretty much doubled the amount of Usenet news I could handle in a day. :-)
Thor
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Oh, yes. My VS4000m60 needs only 36 hours to go
through a "make build".
This is pure luxury.=20
And 4.3BSD-Quasijarus completes its make build on my CSRG dev mill, which is a
KA655 (3.8 VUPs, whereas your KA46 is 12 VUPs), in a little under 4 hours. The
GENERIC vmunix kernel is another 30 minutes.