RE: mc68010+mc68451 Unix source?

2016-10-30 Thread Michael Holley
-Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Ian S. King Sent: Tuesday, October 04, 2016 8:28 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: mc68010+mc68451 Unix source? On Tue, Oct 4, 2016 at 3:14 PM, Al Kossow <a...@bitsavers.

Re: mc68010+mc68451 Unix source?

2016-10-05 Thread Chris Hanson
On Oct 4, 2016, at 1:44 PM, Ethan Dicks wrote: > > So... short form - I'd love to read over some 68K UNIX code to see > what it would take to make it run on orphan hardware from 30 years > ago. If that’s your goal, I think NetBSD will run on 68000 & 68010 hardware with an

Re: mc68010+mc68451 Unix source?

2016-10-05 Thread Mark Linimon
On Wed, Oct 05, 2016 at 02:22:53AM -0600, Eric Smith wrote: > I once wrote an address error handler for the MC68020 so that I could > execute misaligned code. Very very slowly. This cannot possibly be sufficiently funny except to anyone who was in the industry at the time. mcl

Re: mc68010+mc68451 Unix source?

2016-10-05 Thread Eric Smith
On Tue, Oct 4, 2016 at 4:02 PM, Ken Seefried wrote: > Dumb question...did the '451 have a mechanism to work around the > instruction restart issue in the 68000? Or was there some other way > that was handled? The MC68451 was just an MMU. The bus fault problem of the MC68000

Re: mc68010+mc68451 Unix source?

2016-10-05 Thread Eric Smith
On Tue, Oct 4, 2016 at 3:14 PM, Al Kossow wrote: > no. the 68451 is a segmented mmu, so you wouldn't use it for demand > paging. the normal way you use it in unix is setting up segents for > text, data, and bss On Tue, Oct 4, 2016 at 9:28 PM, Ian S. King

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Ian S. King
On Tue, Oct 4, 2016 at 3:14 PM, Al Kossow wrote: > > > On 10/4/16 3:02 PM, Ken Seefried wrote: > > > Dumb question...did the '451 have a mechanism to work around the > > instruction restart issue in the 68000? > > no. the 68451 is a segmented mmu, so you wouldn't use it for

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Al Kossow
On 10/4/16 3:02 PM, Ken Seefried wrote: > Dumb question...did the '451 have a mechanism to work around the > instruction restart issue in the 68000? no. the 68451 is a segmented mmu, so you wouldn't use it for demand paging. the normal way you use it in unix is setting up segents for text,

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Ken Seefried
From: Phil Budne > >A quick google search found: > No source trees. But...thanks? KJ

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Ken Seefried
From: "Mike Stein" > >Did Unisoft distribution tapes normally include sources? > Good question. I don't recall that they did, but it's been a frighteningly lot of years since I've culled through a Unisoft distro tape. KJ

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Ken Seefried
From: Al Kossow > > the will probably be 68000 > > unisoft kernels i've used weren't 010 with the 451 > Dumb question...did the '451 have a mechanism to work around the instruction restart issue in the 68000? Or was there some other way that was handled? > i'll have to dig

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Ethan Dicks
On Mon, Oct 3, 2016 at 10:21 PM, Al Kossow wrote: > the will probably be 68000 > > unisoft kernels i've used weren't 010 with the 451 > > i'll have to dig around for what bits of the 451 kernel i still > have around. unisoft kept the mmu parts pretty well isolated since > the

Re: mc68010+mc68451 Unix source?

2016-10-04 Thread Plamen Mihaylov
Motorola System V/68 Release 2 versions have been distributed as obj and source. They will run on MVME115 and MVME121. Both are using 68010 and 68451 MMU On Tue, Oct 4, 2016 at 6:34 AM, Lyndon Nerenberg wrote: > > > On Oct 3, 2016, at 8:19 PM, Phil Budne

Re: mc68010+mc68451 Unix source?

2016-10-03 Thread Lyndon Nerenberg
> On Oct 3, 2016, at 8:19 PM, Phil Budne wrote: > > I have an ancient Unix system made by ProComp in Switzerland that has a > 68000 CPU, 4 MB RAM and that 68451 MMU. Unfortunately, I didn't get a hard > disk > or system media for this oldtimer :( It ran a port of 7th

Re: mc68010+mc68451 Unix source?

2016-10-03 Thread Phil Budne
A quick google search found: https://groups.google.com/d/msg/comp.os.linux.m68k/-8iweTkxPNI/L2-hPrW_ryAJ mentions: I have an ancient Unix system made by ProComp in Switzerland that has a 68000 CPU, 4 MB RAM and that 68451 MMU. Unfortunately, I didn't get a hard disk or system media for this

Re: mc68010+mc68451 Unix source?

2016-10-03 Thread Mike Stein
Did Unisoft distribution tapes normally include sources? m - Original Message - From: "Al Kossow" <a...@bitsavers.org> To: <cctalk@classiccmp.org> Sent: Monday, October 03, 2016 10:21 PM Subject: Re: mc68010+mc68451 Unix source? > the will probably be 68000

Re: mc68010+mc68451 Unix source?

2016-10-03 Thread Al Kossow
the will probably be 68000 unisoft kernels i've used weren't 010 with the 451 i'll have to dig around for what bits of the 451 kernel i still have around. unisoft kept the mmu parts pretty well isolated since the did so many hw ports On 10/3/16 5:53 PM, Ken Seefried wrote: > I've got a half