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15562 discussions

by mcguire＠neurotica.com

On 10/30/2012 05:19 AM, Johnny Billquist wrote: You can alternatively look for a VT103 as well, since that is pretty much the same thing as a PDT-11/130. If you do some wiring on the Qbus backplane, you can do 22-bit. Throw in an 11/93 CPU, SCSI and what else, and you'll have an awesome system in a VT100 body. This is probably a better idea, but it will likely need some beefing-up of the power supply. The power supply in a VT103 is a bit underpowered for bigger hardware. It can be done, though. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 8 months

RSTS/E + DECNET 4.1

by sampsa＠mac.com

I've got an Intertec Superbrain sitting around on my desk in London but no software for it - that'd make a pretty nifty OPA0 too I think. I think the drives are fubar'd though and they're some weird quad density format, so I thought I'd _carefully_ disassemble the machine and put like a modern machine into the casing, booting into some souped up CP/M emulation thingie... On 30 Oct 2012, at 19:36, Cory Smelosky wrote: On Oct 30, 2012, at 1:28 PM, Dave McGuire <mcguire at neurotica.com> wrote: On 10/30/2012 01:26 PM, Cory Smelosky wrote: I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY I'm kinda shocked to see that you wouldn't be able to run NetBSD /on/ a VT180 ;) Z80...no MMU, 16-bit address space Ah, right. I keep forgetting how old the Z80 actually is and the fact it doesn't offer too much in the way of anything beyond small embedded stuff now. Hmmm, I've been reminded of that project someone accomplished once: simh + a phone + a vt100. But instead someone could go: simh + raspberry pi + VT180 ;). Hide the pi within the cabinet, implement a little piece of software to go between simh and a real serial interface (or can simh interface directly now?) and run VMS "in" a VT180. Was CP/M in ROM on the VT180? Nope, booted from 5.25" floppy from an RX180 disk subsystem. You'll be able to see one when you come visit, though I can't find the floppy cable. Aww, shame you can't find the cable. :( -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 8 months

RSTS/E + DECNET 4.1

by b4＠gewt.net

On Oct 30, 2012, at 1:28 PM, Dave McGuire <mcguire at neurotica.com> wrote: On 10/30/2012 01:26 PM, Cory Smelosky wrote: I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY I'm kinda shocked to see that you wouldn't be able to run NetBSD /on/ a VT180 ;) Z80...no MMU, 16-bit address space Ah, right. I keep forgetting how old the Z80 actually is and the fact it doesn't offer too much in the way of anything beyond small embedded stuff now. Hmmm, I've been reminded of that project someone accomplished once: simh + a phone + a vt100. But instead someone could go: simh + raspberry pi + VT180 ;). Hide the pi within the cabinet, implement a little piece of software to go between simh and a real serial interface (or can simh interface directly now?) and run VMS "in" a VT180. Was CP/M in ROM on the VT180? Nope, booted from 5.25" floppy from an RX180 disk subsystem. You'll be able to see one when you come visit, though I can't find the floppy cable. Aww, shame you can't find the cable. :( -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 8 months

RSTS/E + DECNET 4.1

by mcguire＠neurotica.com

On 10/30/2012 01:26 PM, Cory Smelosky wrote: I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY I'm kinda shocked to see that you wouldn't be able to run NetBSD /on/ a VT180 ;) Z80...no MMU, 16-bit address space... Was CP/M in ROM on the VT180? Nope, booted from 5.25" floppy from an RX180 disk subsystem. You'll be able to see one when you come visit, though I can't find the floppy cable. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 8 months

RSTS/E + DECNET 4.1

by marc＠bluevine.net

On 10/30/12 1:32 AM, Marc Chametzky wrote: Very interesting... and quite different from the way I did it way back when. Whoops, I remembered last night that the technique of generating a PAKGEN license wouldn't work with the Macro-32 file I sent you. That was a different licensing hack. I think I had patched LMF.EXE to generate my own licenses once upon a time. But, that was ages ago. --Marc

12 years, 8 months

RSTS/E + DECNET 4.1

by b4＠gewt.net

On Oct 30, 2012, at 5:47 AM, Sampsa Laine <sampsa at mac.com> wrote: On 30 Oct 2012, at 11:19, Johnny Billquist wrote: You can alternatively look for a VT103 as well, since that is pretty much the same thing as a PDT-11/130. If you do some wiring on the Qbus backplane, you can do 22-bit. Throw in an 11/93 CPU, SCSI and what else, and you'll have an awesome system in a VT100 body. Johnny I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY I'm kinda shocked to see that you wouldn't be able to run NetBSD /on/ a VT180 ;) Was CP/M in ROM on the VT180?

12 years, 8 months

embedded libraries for PDP-11, was Re: [HECnet] DECUS RSX C compiler

by jg＠jordi.guillaumes.name

El 22/10/2012, a les 21:32, Dave McGuire <mcguire at neurotica.com> va escriure: The 2.11BSD lib looks leaner, and I am using it in my pet OS project (I pick the pieces I need "on the run", I have not done a complete port... yet). If the above suggestion doesn't get you anywhere, perhaps avrlibc could be hacked into a PDP-11 library. All of the hardware support will have to be ripped out of course, but there are nice tight implementations of generic library functions in there Doing an unrelated search, I've found this: http://pdclib.e43.eu I have to take a closer look, but it seems promising. Jordi Guillaumes i Pons jg at jordi.guillaumes.name HECnet: BITXOV::JGUILLAUMES

12 years, 8 months

RSTS/E + DECNET 4.1

by sampsa＠mac.com

On 30 Oct 2012, at 11:19, Johnny Billquist wrote: You can alternatively look for a VT103 as well, since that is pretty much the same thing as a PDT-11/130. If you do some wiring on the Qbus backplane, you can do 22-bit. Throw in an 11/93 CPU, SCSI and what else, and you'll have an awesome system in a VT100 body. Johnny I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY...

12 years, 8 months

RSTS/E + DECNET 4.1

by bqt＠softjar.se

On 2012-10-30 04:58, Dave McGuire wrote: On 10/29/2012 11:52 PM, Cory Smelosky wrote: Yeah, archiving this stuff would be a great idea. Dump them all in a format we'll all be able to read in a few years and store it on say, amazon glacier. Who would want anything less than advertised eleven nines for storing email? I dunno, I'd want something more than storing it on someone else's hardware. Especially when that someone else is a huge corporation, subject to corporate whims. Your data could go away at any time. Well, We are running a network of computers... It would seem to me it would make way more sense to have such an archive available on our computers... Johnny

12 years, 8 months

RSTS/E + DECNET 4.1

by bqt＠softjar.se

On 2012-10-30 04:47, sampsa at mac.com wrote: On 30 Oct 2012, at 05:46, Cory Smelosky <b4 at gewt.net> wrote: On Oct 29, 2012, at 11:41 PM, sampsa at mac.com wrote: God I love this mailing list, I have no idea of half the stuff people are talking about, but it's all nifty. I expected this mailing list to be less helpful with regards to my noob questions, I was pleasantly surprised. I've learned quite a bit from this mailing list in a short while. ;) On that note, we really should be archiving this stuff. I think I've got most mails going back a few years in my inbox still (I don't believe in folders, that's why search was invented). I probably have everything, but it's mixed with personal messages to me related to HECnet as well, so it would take a little work to clean it up for access. Johnny

12 years, 8 months

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