MIPS I-IV instruction set standards

I'm wondering where the MIPS I-IV standards that are referenced everywhere are defined. I was able to actually find what seems to be the IV standard [1] but found no such thing for I-III. I didn't even find any bibliographic references to them. Did they only exist as printed books and nobody

Re: Displaywriters in Chicago

On Tue, Feb 28, 2017 at 4:12 PM, Jason T via cctalk wrote: > Did anyone win this and/or make a deal with the seller? I'm curious too, seemed like fairly complete systems and we now have most of the software that was released for these systems and nearly a complete

Re: MIPS I-IV instruction set standards

Angelo Papenhoff wrote: > I'm wondering where the MIPS I-IV standards that are referenced > everywhere are defined. I was able to actually find what seems to be the > IV standard [1] but found no such thing for I-III. Anything you find, I'd like to add to

Re: DEC VT100/220 line wrapping semantics sought

Some time ago I solicited help investigating how DEC VT terminals handle line wrapping, mainly for the purpose of accurate emulation. Having received assistance from very kind people -- many thanks! -- some of the findings have now been summarised at https://github.com/mattiase/wraptest, in

Cassette Interface Assistance

Analog, which is my nemesis, curses me again. I have a cute idea for a cassette port project for the Tandy line of computers (the ones with the cassette port). I have a Coco 3 on the bench, so I scoped the output line while doing 'csave "jim"'. The signal looks to be just under 1V PtP (0-1V

Re: Sparcbook 3TX Hard Drive?

Hi Jerry, thanks for the info. I do have a some SCSI2SD adapters, though I would still have the problem with the weird internal connector and lack of a drive caddy to hold anything. I mean, I can't use a Sparcbook at the coffee shop with an external drive... That would be embarrassing! On Mon,

Re: Cassette Interface Assistance

74hc(or ls)14 Enviado do meu Tele-Movel On Feb 28, 2017 12:55 PM, "Jim Brain via cctalk" wrote: > Analog, which is my nemesis, curses me again. > > I have a cute idea for a cassette port project for the Tandy line of > computers (the ones with the cassette port). I have

Re: MIPS I-IV instruction set standards

Are you aware of “See MIPS Run” by Sweetman? That’s what I always used as a reference for the early MIPS stuff. TTFN - Guy > On Feb 28, 2017, at 3:16 AM, Eric Smith via cctalk > wrote: > > On Mon, Feb 27, 2017 at 11:59 PM, Angelo Papenhoff via cctalk < >

IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

Via Mike Ross, but contact Greg with any questions! -- Forwarded message -- From: "Greg Bebermeyer" Date: Feb 27, 2017 4:44 AM Subject: IBM System/32 - web response To: Cc: Hi Mike, Maybe this is no longer relevant since I can't tell

Re: MIPS I-IV instruction set standards

On Mon, Feb 27, 2017 at 11:59 PM, Angelo Papenhoff via cctalk < cctalk@classiccmp.org> wrote: > I'm wondering where the MIPS I-IV standards that are referenced > everywhere are defined. I was able to actually find what seems to be the > IV standard [1] but found no such thing for I-III. I didn't

Re: Cassette Interface Assistance

74LS of 74HC gates are not going to work, the signal level is only 1V the threshold for 74LS is 2V and for 74HC it is 3.7V. I would probably use something like a compatator or an opamp but I don't have a circuit handy to use, but tehy should be easy to find. Paul. On 2017-02-28 11:59 AM,

Re: Cassette Interface Assistance

On Feb 28, 2017, at 9:55 AM, Jim Brain via cctalk wrote: > Analog, which is my nemesis, curses me again. > > I have a cute idea for a cassette port project for the Tandy line of > computers (the ones with the cassette port). I have a Coco 3 on the bench, > so I scoped

Re: Cassette Interface Assistance

* On Tue, Feb 28, 2017 at 09:55:30AM -0600, Jim Brain via cctalk wrote: > Analog, which is my nemesis, curses me again. > > I have a cute idea for a cassette port project for the Tandy line of > computers (the ones with the cassette port). I have a Coco 3 on the bench, >

Re: Cassette Interface Assistance

On Tue, Feb 28, 2017 at 5:12 PM, Tapley, Mark via cctalk wrote: > On Feb 28, 2017, at 9:55 AM, Jim Brain via cctalk > wrote: > >> Analog, which is my nemesis, curses me again. I fail to see how anyone can be a good digital designer and not

Re: Cassette Interface Assistance

Now that I read your whole email I would like to ask what you plan to do with this boosted signal? I have never had a CoCo, but most cassette interfaces on these old computers pretty much all worked like a modem but you where recording the signal instead of sending it down a phone line.

Re: Cassette Interface Assistance

On Tue, 28 Feb 2017, Tony Duell via cctalk wrote: On Tue, Feb 28, 2017 at 5:12 PM, Tapley, Mark via cctalk wrote: On Feb 28, 2017, at 9:55 AM, Jim Brain via cctalk wrote: Analog, which is my nemesis, curses me again. In my opinion, I fail to

Re: Cassette Interface Assistance

On 02/28/2017 09:42 AM, Seth Morabito via cctalk wrote: > Synertek used an LM311 (an LM358 would work just fine) to build a > comparator circuit. I _think_ you could use this exact circuit to > take the analog output from the CoCo and turn it into a 5V sqauare > wave. I don't know a thing

Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

I'm on the other side of the country or I'd be all over this. Someone please rescue this equipment. The thought of it going to the scrappers is, well, brutal. Aren't PDP-11/60s kind of a rare beast? - Earl

Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

On Tue, Feb 28, 2017 at 10:47 AM, Earl Evans via cctech < cct...@classiccmp.org> wrote: > I'm on the other side of the country or I'd be all over this. Someone > please rescue this equipment. The thought of it going to the scrappers is, > well, brutal. Aren't PDP-11/60s kind of a rare beast? > >

Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

> > I'm on the other side of the country or I'd be all over this. Someone > > please rescue this equipment. The thought of it going to the scrappers is, > > well, brutal. Aren't PDP-11/60s kind of a rare beast? > > > > - Earl > > > > yes, yes they are. ug. I've contacted Greg, haven't heard

Re: Sparcbook 3TX Hard Drive?

All I can say is good luck. These are typically the limiting reagent to portable use. About half my sparcbooks have sleds, optimistically. Any tadpole series 2 (P-series, N40, AlphaBook, Sparcbook) sled will work. Sparcbook 3000 series caddies look identical but will not. On Tue, Feb 28, 2017

Re: Cassette Interface Assistance

On 2/28/2017 11:43 AM, Tony Duell via cctalk wrote: I fail to see how anyone can be a good digital designer and not understand analogue electronics. A couple points: * It is entirely possible I am not a good digital designer * I believe I have a basic understanding of analog, but I may not

Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

On Tue, Feb 28, 2017 at 10:47 AM, Earl Evans via cctech wrote: > I'm on the other side of the country or I'd be all over this. I'm hours away myself... > Someone please rescue this equipment. The thought of it going to the > scrappers is, well, brutal. Indeed. > Aren't

Re: Cassette Interface Assistance

On 2/28/17 10:55 AM, Jim Brain via cctalk wrote: Analog, which is my nemesis, curses me again. I have a cute idea for a cassette port project for the Tandy line of computers (the ones with the cassette port). I have a Coco 3 on the bench, so I scoped the output line while doing 'csave

Re: Cassette Interface Assistance

On 2/28/17 12:09 PM, Paul Berger via cctalk wrote: 74LS of 74HC gates are not going to work, the signal level is only 1V the threshold for 74LS is 2V and for 74HC it is 3.7V. I would probably use something like a compatator or an opamp but I don't have a circuit handy to use, but tehy should

Re: Cassette Interface Assistance

On Tue, Feb 28, 2017 at 11:21 AM, allison via cctalk wrote: > On 2/28/17 10:55 AM, Jim Brain via cctalk wrote: >> I have a cute idea for a cassette port project for the Tandy line of >> computers (the ones with the cassette port) >> > Why not just go inside and grab the

Re: I hate the new mail system

> Is this a conscious choice, or a configurable with a different > default setting in a new mail system than was previously in place? > However it came to be, it greatly diminishes communications quality > (IMAO). You can blame me for the change to the way the From: header is handled. The

Re: I hate the new mail system

>> [From: changing] > You can blame me for the change to the way the From: header is > handled. The purpose of this change is to try to solve the mass > bounce problem. Sounds as though this may be a cure worse than the disease, though. > Actually, you should really blame the folks responsible

Re: Cassette Interface Assistance

On 2/28/17 1:43 PM, Jim Brain via cctalk wrote: On 2/28/2017 12:17 PM, Ethan Dicks via cctalk wrote: It sounds like he is contemplating a battery-powered tape drive emulator that plugs on the outside of the machine for users to use without opening their boxes. It would then be portable to

Re: Cassette Interface Assistance

if anyone has a cable for the trs 80 model 100 small compact cassette drive to the 100 please lest us know. need this for demoing and display of the model 100 in the museum... thanks ed# www.smecc.org Sent from AOL Mobile Mail On Tuesday, February 28, 2017 allison via cctalk

Re: I hate the new mail system

On 28/02/2017 22:06, Eric Christopherson via cctalk wrote: At least in Gmail's web interface, I don't see reply and reply all having any difference here; they both put both addresses in the To:. I'll have to check how this works in an IMAP client later. It may vary in different clients, but in

Re: I hate the new mail system

Simple question of policy (what do we WANT, not "what is the only sensible right way"): Do we want the DEFAULT to be replying to author, or replying to list? Current configuration has REPLY-TO being same as REPLY-ALL, and has REPLY being a reply to list, with the TO: line having the

Re: Cassette Interface Assistance

On 2017-Feb-28, at 7:55 AM, Jim Brain via cctalk wrote: > Analog, which is my nemesis, curses me again. > > I have a cute idea for a cassette port project for the Tandy line of > computers (the ones with the cassette port). I have a Coco 3 on the bench, > so I scoped the output line while

Re: Cassette Interface Assistance

It was thus said that the Great Tony Duell via cctalk once stated: > On Tue, Feb 28, 2017 at 4:21 PM, allison via cctalk > wrote: > > > > > > The tape recorders used had no agc. They were simple portables and used the > > mic or line input and headphone output. > > I

Re: I hate the new mail system

On Tue, Feb 28, 2017 at 3:51 PM, Dave Wade G4UGM via cctalk < cctalk@classiccmp.org> wrote: > > -Original Message- > > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rich > > Alderson via cctalk > > Sent: 28 February 2017 21:23 > > To: 'General Discussion: On-Topic and

RE: I hate the new mail system

When I hit "reply" I get both the originator's email and the lists email in my 'to' field. I can simply delete the list when I want to only reply to the originator. -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Dennis Boone via cctalk Sent:

I hate the new mail system

OK, it's official. I rarely criticize mail interfaces, because they're usually mostly innocuous. However, today's change makes life a lot more difficult. In the past, it was simple to direct a reply to an individual instead of to the list because the originator's address was right there in the

Re: list issue

Thanks for spotting that the list was down, and for fixing it so quickly. I can't begin to imagine how hard it is to move datacenters. Regards, Andrew Burton aliensrcoo...@yahoo.co.uk www.aliensrcooluk.com - Original Message - From: "Jay West" To:

RE: I hate the new mail system

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rich > Alderson via cctalk > Sent: 28 February 2017 21:23 > To: 'General Discussion: On-Topic and Off-Topic Posts' > > Subject: I hate the new mail system > > OK, it's official.

Re: I hate the new mail system

> From: Rich Alderson > it is impossible to respond privately unless you happen to have a bunch > of old messages archived and the person to whom you want to respond is > someone who has written previously. If you go into the list archive:

Re: I hate the new mail system

On 28/02/2017 21:23, Rich Alderson via cctalk wrote: OK, it's official. I rarely criticize mail interfaces, because they're usually mostly innocuous. However, today's change makes life a lot more difficult. Actually, I rather like it, because in my mail client (Thunderbird) it shows as

Re: I hate the new mail system

On 02/28/2017 03:18 PM, Torfinn Ingolfsen via cctalk wrote: > FWIW, reply and reply all in Gmail web interface now lists both > addresses (originator and mailing list). I don't know if this is a > change again. > > Also, I find it somewhat funny in a bizarre way that people on this > list who

Re: I hate the new mail system

On 02/28/2017 03:40 PM, Paul Berger wrote: > Well I am using Thunderbird 45.7.1 and I see this "Chuck Guzis via > cctalk " as "From" in your message. > Hmmm, this is very puzzling. Your message does indeed show up as being from "Paul Berger", by the message you replied

Re: I hate the new mail system

FWIW, reply and reply all in Gmail web interface now lists both addresses (originator and mailing list). I don't know if this is a change again. Also, I find it somewhat funny in a bizarre way that people on this list who have experience with all kinds of systems, all kinds of user interfaces and

Re: I hate the new mail system

It was thus said that the Great Chuck Guzis via cctalk once stated: > On 02/28/2017 03:40 PM, Paul Berger wrote: > > Well I am using Thunderbird 45.7.1 and I see this "Chuck Guzis via > > cctalk " as "From" in your message. > > > > Hmmm, this is very puzzling. Your

Re: I hate the new mail system

On 02/28/2017 05:21 PM, Jon Auringer wrote: > > Chuck, > > I had the same display issue. Uncheck "Show only display name for > people in my address book" under Tools-Options-Display-Advanced. Jon, Thanks for the hint! I'm using the Linux version of Thunderbird, so the setting isn't under

Analog design: was: Cassette Interface Assistance

On 02/28/2017 03:05 PM, Noel Chiappa via cctalk wrote: > I seem to have some bizarre brain dysfunction where I have a very > hard time understanding even the simplest analog circuits. You, or > someone like Brent Hilpert (whose explanation of core memory drivers > I still remember :-) can explain

Re: I hate the new mail system

Well I am using Thunderbird 45.7.1 and I see this "Chuck Guzis via cctalk " as "From" in your message. Paul. On 2017-02-28 7:32 PM, Chuck Guzis via cctalk wrote: On 02/28/2017 03:18 PM, Torfinn Ingolfsen via cctalk wrote: FWIW, reply and reply all in Gmail web

Re: Cassette Interface Assistance

> From: Tony Duell > I fail to see how anyone can be a good digital designer and not > understand analogue electronics. It's easy! As long as your devices are being run in a domain where their behaviour is purely, well, digital, one can get away with it! :-) I'm a perfect case in

Re: Cassette Interface Assistance

On 2/28/2017 11:56 AM, Chuck Guzis via cctalk wrote: On 02/28/2017 09:42 AM, Seth Morabito via cctalk wrote: Synertek used an LM311 (an LM358 would work just fine) to build a comparator circuit. I _think_ you could use this exact circuit to take the analog output from the CoCo and turn it into

Re: Cassette Interface Assistance

On 2/28/2017 11:42 AM, Seth Morabito via cctalk wrote: Hi Jim, When I was building a cassette circuit for my homebrew 6502 computer, I essentially stole the Synertek SYM-1 circuit wholesale. See:

Re: Cassette Interface Assistance

On 2/28/2017 12:17 PM, Ethan Dicks via cctalk wrote: It sounds like he is contemplating a battery-powered tape drive emulator that plugs on the outside of the machine for users to use without opening their boxes. It would then be portable to other machines. Sounds like a great idea. This

Re: Cassette Interface Assistance

On 2/28/17 1:17 PM, Ethan Dicks via cctalk wrote: On Tue, Feb 28, 2017 at 11:21 AM, allison via cctalk wrote: On 2/28/17 10:55 AM, Jim Brain via cctalk wrote: I have a cute idea for a cassette port project for the Tandy line of computers (the ones with the cassette

Re: Cassette Interface Assistance

On 2/28/17 12:56 PM, Chuck Guzis via cctalk wrote: On 02/28/2017 09:42 AM, Seth Morabito via cctalk wrote: Synertek used an LM311 (an LM358 would work just fine) to build a comparator circuit. I _think_ you could use this exact circuit to take the analog output from the CoCo and turn it into a

Re: Cassette Interface Assistance

On 2/28/2017 12:36 PM, allison via cctalk wrote: A sound recorder, how novel. My I phone and androids already do that. Before that I use tape recorders. Using a classic machine, how novel. My iPhone and androids already compute everything I need. Before that I used other machines still more

Re: DEC VT100/220 line wrapping semantics sought

Mattias Engdegård wrote: > Many thanks for the VT420 results! I have a VT220 too, but it's in storage. I can dig it out if necessary, but I'm hoping someone else can contribute those results. Note that the setup probably can alter the results. I had "Auto Wrap" enabled, which is probably what

Re: Cassette Interface Assistance

On 2/28/2017 2:34 PM, Brent Hilpert wrote: In answer to the final point, and the interests of some analog education, looking at your reffed pdf, page 75, the reason (or one reason) your duplicated Coco input circuit is not working is the gross impedance mismatch between the coco tape output

Re: I hate the new mail system

On 02/28/2017 03:23 PM, Rich Alderson via cctalk wrote: OK, it's official. I rarely criticize mail interfaces, because they're usually mostly innocuous. However, today's change makes life a lot more difficult. In the past, it was simple to direct a reply to an individual instead of to the

Re: DEC VT100/220 line wrapping semantics sought

28 feb. 2017 kl. 20.10 skrev Lars Brinkhoff via cctalk : > I have a VT420 set up for my kid to play with. I'll borrow it and > submit a pull request with the results. That is what I call being a responsible parent. Many thanks for the VT420 results!

RE: I hate the new mail system

From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Dave Wade G4UGM via cctalk Sent: Tuesday, February 28, 2017 1:52 PM > "reply all" seems to put the original sender and the list in the "to:" > field.. Thanks, Dave, Dennis, and js. I had no reason to reply (all) to any of these

Re: Sparcbook 3TX Hard Drive?

However it plays out for you, thanks for sharing with the group. I always wanted a SPARCbook, never could afford one at the time, and according to the wife, now would not be a good time to acquire one according to the wife after just picking up a SPARCserver 1000e + 3 large SPARCarray's.

Re: Cassette Interface Assistance

On Tue, 28 Feb 2017, Jim Brain via cctalk wrote: This year's CocoFEST is open to all TRS-80 models, not just the Coco, and I noticed that many of the models have a similar cassette port connector yes. even the IBM PC 5150 uses the same connector and pinout, and cable (Radio Shack #26-1207)

Re: DEC VT100/220 line wrapping semantics sought

Mattias Engdegård wrote: > Data for VT100, VT220 and VT510 have been collected, as well as > several emulators > (https://github.com/mattiase/wraptest/blob/master/results.txt). If > anyone has access to other working terminals, VT3xx/VT4xx in > particular, I'd be most grateful if you would take a

Re: Cassette Interface Assistance

On Tue, Feb 28, 2017 at 6:10 PM, Jim Brain wrote: > A digital one. The current goal is to feed the incoming data stream into an > Atmel AVR running at 5V for parsing. The final goal is to do the same, but > run the AVR at 3V on two coin cells. OK. I assume you don't want to

Re: Cassette Interface Assistance

On Tue, Feb 28, 2017 at 4:21 PM, allison via cctalk wrote: > > The tape recorders used had no agc. They were simple portables and used the > mic or line input and headphone output. I have to disagree with you there. I have just looked at the documentation for a couple