Re: VCF PNW 2018: Pictures!

On Mon, Feb 19, 2018 at 06:36:13PM -0600, Adrian Stoness via cctalk wrote: > whats invovled in makin an emulator? > i have a chunk of stuff for the phillips p1000 That depends on how accurate you want the emulation to be. A programmer of modest ability should be able to knock up a simple

Re: VCF PNW 2018: Pictures!

> On Feb 19, 2018, at 6:51 AM, Noel Chiappa via cctalk > wrote: > >> From: geneb > >> they've got a DPS-8 maintenance/operator/? panel ... It's fully >> operational and is connected via some magic hardware to a Raspberry Pi >> running a Multics emulator. > >

RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul > Koning via cctalk > Sent: 21 February 2018 14:41 > To: Sean Conner ; General Discussion: On-Topic and Off- > Topic Posts > Subject: Re: Writing

Re: SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]

> On Feb 21, 2018, at 3:25 PM, Rich Alderson via cctalk > wrote: > > From: Paul Koning > Sent: Wednesday, February 21, 2018 6:41 AM > >> And while there is roughly-accurate simulation of DECtape in SIMH (presumably >> for TOPS-10 overlapped seek to work?) > > It's not

Re: Seeking RL02K cartridge

> > I am wondering if anyone would be willing to sell me an RL02K cartridge > > for a sensible price? > > There are a bunch listed on eBait for not wholly unrealistic prices; I > wouldn't buy a bunch there, but it you only need one, for testing... Not sure > if any of the ones for sale

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Van: Al Kossow via cctalk Verzonden: woensdag 21 februari 2018 20:11 Aan: cctalk@classiccmp.org Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!) On 2/21/18 10:59 AM, Paul Koning via cctalk wrote: > The absence of

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 12:19 PM, Rich Alderson via cctalk > wrote: > > From: Guy Sotomayor Jr > Sent: Wednesday, February 21, 2018 11:24 AM > >>> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk >>> wrote: > >>> Typically you'd emulate the

Re: Seeking RL02K cartridge

> From: Aaron Jackson > I am wondering if anyone would be willing to sell me an RL02K cartridge > for a sensible price? There are a bunch listed on eBait for not wholly unrealistic prices; I wouldn't buy a bunch there, but it you only need one, for testing... Not sure if any of the

Re: Why don't you respect the mail threads?!

> From: Grant Taylor > I'm on a list where it seems as if a frequent contributer uses an MUA > that does not send In-Reply-To or References headers at all. It doesn't > even send a User-Agent header. *sigh* That's me, I expect. I used to use a TOPS-20 email reader called MM, and

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

> On Feb 21, 2018, at 3:52 PM, Chuck Guzis via cctalk > wrote: > >> On 02/21/2018 12:28 PM, Al Kossow via cctalk wrote: >> That actually just came up for discussion in a donation review meeting this >> week at >> CHM. >> >> I don't know if they're that interesting w/o

Re: Why don't you respect the mail threads?!

On 02/21/2018 02:05 PM, Fred Cisin via cctalk wrote: Not likely to be related to Oumuamua Well…. Not exactly. I could see how a loose connection could be made. Mail User Agents are often used to reach out and make first contact with people. I could see how a new MUA could justify using

Re: Why don't you respect the mail threads?!

On 02/21/2018 03:50 PM, Noel Chiappa via cctalk wrote: That's me, I expect. I'm not naming any names. I have sent an email to the person directly with a polite inquiry. I see no point in pointing fingers. I used to use a TOPS-20 email reader called MM, and when I moved my email to a Unix

Re: SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]

Rich Alderson wrote: > It's not for Tops-10. SimH only provides the KS-10 processor[1], so > DECtape is not a possible peripheral. > [1] Although there is a KA-10 in the works. Also KI-10 in its current state. Maybe PDP-6 in the future.

Re: VCF PNW 2018: Pictures!

On Wed, Feb 21, 2018 at 4:28 AM, Philipp Hachtmann via cctalk < cctalk@classiccmp.org> wrote: > > On 19.02.2018 02:52, Zane Healy via cctalk wrote: > >> What do they have up there for Honeywell? >> > > I was looking through the pics and saw - nothing... But I also would be > VERY interested about

Re: Why don't you respect the mail threads?!

On Feb 21, 2018, at 9:39 AM, Pontus Pihlgren via cctalk wrote: > Which part is it that bothers you? That the subject is not changed > (which I did) or that the In-Reply-To: header is preserved which > mucks up threading in my client. > > anyway, this has been up for

Writing emulators (was Re: VCF PNW 2018: Pictures!)

On 02/19/18 19:36, Adrian Stoness via cctalk wrote: > whats invovled in makin an emulator? > i have a chunk of stuff for the phillips p1000 Quite a lot actually.  A single CPU system is difficult enough, but a mainframe might be much, much harder.  The idea to use an existing emulator framework,

Re: Why don't you respect the mail threads?!

On 02/21/2018 08:57 AM, Tapley, Mark via cctalk wrote: I was one of the offenders. A list member politely pointed out to me (in private mail) the existence of the of the in-reply-to header which my client isn’t set to use. I had no idea! I’d been diligently changing subject: headers when I

Re: Why don't you respect the mail threads?!

Which part is it that bothers you? That the subject is not changed (which I did) or that the In-Reply-To: header is preserved which mucks up threading in my client. anyway, this has been up for discussion before with little improvements..so I have given up and accept status quo. /P P.S.

Re: Why don't you respect the mail threads?!

On 02/21/2018 05:26 AM, Philipp Hachtmann via cctalk wrote: I have to say that I hate this email thread abuse so much...! ;-) Is it so difficult to leave the thread about PICTURES (fill in whatever topic it was about) intact? I suspect it's either people that don't know they are breaking

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On 02/21/18 09:41, Paul Koning via cctalk wrote: > > SIMH in principle allows the writing of cycle-accurate CPU simulators, but I > don't believe anyone has bothered. It's hard to see why that would be all > that interesting. For some CPUs, the full definition of how long > instructions take

Re: VCF PNW 2018: Pictures!

On 19.02.2018 02:52, Zane Healy via cctalk wrote: What do they have up there for Honeywell? I was looking through the pics and saw - nothing... But I also would be VERY interested about if and what Honeywell stuff they have.

Why don't you respect the mail threads?!

I have to say that I hate this email thread abuse so much...! Is it so difficult to leave the thread about PICTURES (fill in whatever topic it was about) intact? It would be so much better to start a new thread instead: - Does not disturb original discussion. - Can be found and identified

Re: Why don't you respect the mail threads?!

mua? On Wed, Feb 21, 2018 at 10:45 AM, Grant Taylor via cctalk < cctalk@classiccmp.org> wrote: > On 02/21/2018 05:26 AM, Philipp Hachtmann via cctalk wrote: > >> I have to say that I hate this email thread abuse so much...! >> > > ;-) > > Is it so difficult to leave the thread about PICTURES

Re: VCF PNW 2018: Pictures!

On 02/21/18 08:16, Peter Corlett via cctalk wrote: > > A programmer of modest ability should be able to knock up a simple > switch()-based step-by-step CPU emulation in a few hours. This is analogous to > a simple microcoded CPU and the performance will suck. Yeah, please don't code this way.  Big

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 10:19 AM, Ray Arachelian via cctalk < cctalk@classiccmp.org> wrote: > On 02/19/18 19:36, Adrian Stoness via cctalk wrote: > > whats invovled in makin an emulator? > > i have a chunk of stuff for the phillips p1000 > > Quite a lot actually. A single CPU system is difficult

Re: Why don't you respect the mail threads?!

On 02/21/2018 11:06 AM, Adrian Stoness wrote: mua? Mail User Agent I.e. email client. -- Grant. . . . unix || die

Re: Why don't you respect the mail threads?!

because its not something i think of when asking a question On Wed, Feb 21, 2018 at 6:26 AM, Philipp Hachtmann via cctalk < cctalk@classiccmp.org> wrote: > I have to say that I hate this email thread abuse so much...! > Is it so difficult to leave the thread about PICTURES (fill in whatever >

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 11:19 AM, Ray Arachelian via cctalk > wrote: > > On 02/19/18 19:36, Adrian Stoness via cctalk wrote: >> whats invovled in makin an emulator? >> i have a chunk of stuff for the phillips p1000 > > Quite a lot actually. A single CPU system is

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk > wrote: > > > Caching doesn't change user-visible functionality, so I can't imagine wanting > to emulate that. The same goes for certain error handling. I've seen an > emulator that included support for bad

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 2:24 PM, Guy Sotomayor Jr wrote: > > > >> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk >> wrote: >> >> >> Caching doesn't change user-visible functionality, so I can't imagine >> wanting to emulate that. The same

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 1:59 PM, Paul Koning via cctalk wrote: > If microcode is not user-changeable, or if that capability is not a core > feature, then you can easily omit it. That tends to make the job much > easier. For example, I don't know that anyone emulates the

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Van: Henk Gooijen via cctalk Verzonden: woensdag 21 februari 2018 21:20 Aan: Pontus Pihlgren; General Discussion: On-Topic and Off-Topic Posts Onderwerp: RE: Writing emulators (was Re: VCF PNW 2018:

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

For what it's worth, I differentiate "cycle correct" from "real time". That is, if you're talking about emulating non-mechanical devices, "cycle correct" emulation should be fairly straightforward, but making it "real time" (i.e. implementing an emulator such that it's indistinguishable by an

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On 02/21/18 12:44, Eric Christopherson wrote: > > era, but not all.  see: https://github.com/ctm/executor.git > and > https://github.com/ctm/executor.git > - some of this is called > "High Level >

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 07:44:33PM +, Henk Gooijen via cctalk wrote: > > Van: Paul Koning via cctalk > Verzonden: woensdag 21 februari 2018 20:37 > Aan: Guy Sotomayor Jr > CC: General Discussion: On-Topic and Off-Topic >

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On 02/21/18 13:49, Ray Arachelian via cctalk wrote: > https://en.wikipedia.org/wiki/Executor_(software) > One more, I point to this because it addresses quite a lot of stuff that's needed to emulate a CPU, though you don't need to implement it this way at all.

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On 2/21/18 6:41 AM, Paul Koning via cctalk wrote: > SIMH in principle allows the writing of cycle-accurate CPU simulators, but I > don't believe anyone has bothered. Atari 2600 requires it. Any simulation of an embedded system that did cycle counting for timing would require it as well. One

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Van: Pontus Pihlgren Verzonden: woensdag 21 februari 2018 21:15 Aan: Henk Gooijen; General Discussion: On-Topic and Off-Topic Posts CC: Paul Koning Onderwerp: Re: Writing

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 1:36 PM, Adrian Stoness via cctalk > wrote: > > i dont think there is any physical hardware to test from left sept for > maybe part of the front panel and a tape drive sitting in europe in museum > and a couple random bit in some private

Re: VCF PNW 2018: Pictures!

On Wed, Feb 21, 2018 at 6:45 AM, Zane Healy via cctalk < cctalk@classiccmp.org> wrote: > > > On Feb 19, 2018, at 6:51 AM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > > Really the H6180 looks a lot more like the DPS-8 I remember. We had a > single CPU Dev system, and a 4 CPU

Re: Why don't you respect the mail threads?!

mua? Mail User Agent I.e. email client. Not likely to be related to Oumuamua

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On Wed, Feb 21, 2018 at 8:52 AM, Ray Arachelian via cctalk < cctalk@classiccmp.org> wrote: > Now, you don't want to run your emulated guest CPU(s) at full speed on > the host machine, because you'll overheat it, and typically, it'll run a > multi-process OS anyway and you don't want to starve the

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On 2/21/18 11:11 AM, Chuck Guzis via cctalk wrote: > Putting it another way, one can maintain a cycle counter in an emulator > whose contents are updated when certain tasks have been accomplished. Synchronization at start of instruction fetch, DMA complete, and firing of an interrupt can hide

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On 2/21/18 10:59 AM, Paul Koning via cctalk wrote: > The absence of that emulation isn't a big deal, unless you want to run the > Richy Lary PDP-8 emulator on that emulated 11/60. (Has it been preserved?) > > People have been searching for it for a while now, but it appears to have been

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Van: Ethan Dicks via cctalk Verzonden: woensdag 21 februari 2018 20:44 Aan: Paul Koning; General Discussion: On-Topic and Off-Topic Posts Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

i dont think there is any physical hardware to test from left sept for maybe part of the front panel and a tape drive sitting in europe in museum and a couple random bit in some private collections drawings theres some but not allot. most of the known documentation is in dutch and from what i

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 2:47 PM, Henk Gooijen via cctalk > wrote: > > ... > Tekst on my website: > > The only other PDP-11 that has a WCS option (KUV11, M8018) is the PDP-11/03, > KD11-F processor. > Ritchie Lary wrote the micro-code for the PDP-11/60 to emulate the

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

That actually just came up for discussion in a donation review meeting this week at CHM. I don't know if they're that interesting w/o the software and documentation, and even then, these things were all locked down with licenses, except for the really early ones like Daisy and Valid. On

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Van: Paul Koning via cctalk Verzonden: woensdag 21 februari 2018 20:37 Aan: Guy Sotomayor Jr CC: General Discussion: On-Topic and Off-Topic Posts Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018:

Re: qd32 trouble

I *might* be able to help, *if* you also have a MicroVax you can plug this controller into - eventually (months). I have a pair of MicroVaxen with Emulex QD32 SMD controllers in my collection. (My inventory shows them as QD325, but I expect that is a misnomer; my notes indicate QD32). With

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

From: Guy Sotomayor Jr Sent: Wednesday, February 21, 2018 11:24 AM >> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk >> wrote: >> Typically you'd emulate the I/O device functionality, regardless of whether >> that is implemented in gates or in co-processor firmware.

SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]

From: Paul Koning Sent: Wednesday, February 21, 2018 6:41 AM > And while there is roughly-accurate simulation of DECtape in SIMH (presumably > for TOPS-10 overlapped seek to work?) It's not for Tops-10. SimH only provides the KS-10 processor[1], so DECtape is not a possible peripheral.

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

Guy Sotomayor Jr via cctalk writes: >> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk >> wrote: >> >> >> Caching doesn't change user-visible functionality, so I can't imagine >> wanting to emulate that. The same goes for certain error handling. >> I've seen an

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On Wed, Feb 21, 2018 at 2:11 PM, Chuck Guzis via cctalk wrote: > For what it's worth, I differentiate "cycle correct" from "real time". Agreed. I've been testing Z-80 emulators over the past year because a CP/M game (Scott Adams' Adventures) depends on the R register

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 11:24 AM, Guy Sotomayor Jr via cctalk < cctalk@classiccmp.org> wrote: > > > > On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk < > cctalk@classiccmp.org> wrote: > > > > > > Caching doesn't change user-visible functionality, so I can't imagine > wanting to emulate that.

Re: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]

On 02/21/2018 12:28 PM, Al Kossow via cctalk wrote: > That actually just came up for discussion in a donation review meeting this > week at > CHM. > > I don't know if they're that interesting w/o the software and documentation, > and even > then, these things were all locked down with licenses,