Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!steinmetz!ge-dab!codas!killer!jfh
From: jfh@killer.UUCP (The Beach Bum)
Newsgroups: comp.sys.m68k
Subject: Re: Virtual Machine (was: Apollo (was: MINIX port to A1000))
Message-ID: <2051@killer.UUCP>
Date: Tue, 10-Nov-87 18:31:24 EST
Article-I.D.: killer.2051
Posted: Tue Nov 10 18:31:24 1987
Date-Received: Sun, 15-Nov-87 02:35:52 EST
References: <8711050534.AA25885@jade.berkeley.edu> <21608@ucbvax.BERKELEY.EDU> <1976@crash.CTS.COM>
Organization: Big "D" Home for Wayward Hackers
Lines: 17
Keywords: virtual machine, emulation, 68010
Summary: Note about 68K's as virtual machines.


[ Responding to article about 68000's can't restart a faulted instruction. ]

Interestingly enough, some manufacturer built a machine with two 68000's.
The main 68K ran along until a page fault.  Then (and this is from memory)
the second 68K loaded the faulted page while the first was halted waiting
for DTACK to be asserted.  Once the page was loaded, the second 68K
asserted DTACK for the first CPU, and then waited for the next page fault.

What machine was this?  This isn't a quiz, I'm asking the question ...

- John.
-- 
John F. Haugh II                  SNAIL:  HECI Exploration Co. Inc.
UUCP: ...!ihnp4!killer!jfh                11910 Greenville Ave, Suite 600
      ...!ihnp4!killer!rpp386!jfh         Dallas, TX. 75243
"Don't Have an Oil Well?  Then Buy One!"  (214) 231-0993