It was thus said that the Great vrs once stated:
>
> > What does PUSHJ actually do? I remember reading about it in Steven Levy's
> > Hackers, but never got what was so special about it.
>
> PUSHJ does a CALL, using a software implementation of a stack, which allows
> the target subroutine to be recursive. JMS stores the return address in the
> entry point, so it won't do (without help) for recursive routines.
> (Similarly, POPJ is like RET.)
Oh, PUSH-JUMP.
-spc (Okay, that makes sense now ... )
>
>Subject: Re: Infocom on PDP-11
> From: Philip Pemberton <philpem at dsl.pipex.com>
> Date: Sun, 08 May 2005 22:06:15 +0100
> To: cctalk at classiccmp.org
>
>In message <f4eb766f05050813432f2d277a at mail.gmail.com>
> Ethan Dicks <ethan.dicks at gmail.com> wrote:
>
>> One of the events in the timeline mentions a ZIP (Zork Implementaton
>> Program - the game engine) for the DECmate. If anyone has ever seen
>> an Infocom title for the DECmate, I'd love to play with it. I'd
>> expect that it was for an optional 8-bit coprocessor board, not for
>> the primary 12-bit 6100 processor, but I'd like to know for sure.
It was for either the Z80 apu running CP/M making its a terminal/media
thing rather than new version.
>I'm not sure just how powerful the 6100 is, but I doubt it would be too
>difficult to port one of the simpler Z-machine engines from Linux or BSD to
>whatever the DECmate runs (VMS?)
Decmate II/III uses 6120 (PDP-8 with EMA). There is no *nix for the PDP-8
and OS278 is common. FYI: VMS runs on VAX(32bit) and Alpha(64bit).
If you can fit the game format into a 32Kword 12bit machine it's possible.
Generally speaking there isn't a C compiler for PDP-8 I know of and the
4k paged addressing and very minimalist instruction set would be an
interesting challenge. I've seen Fortan, Focal, Basic and even algol
on an 8 but never C.
There is also the VAXmate, a flavor of a 286 clone.
Allison
Seems I had some extra time on my hands for another useless thingie, this
time its a collection of Floppy Sleeves. I know there is already one out
there but it hasn't been maintained in ages so I thought I start it again.
Check it out at http://www.oldcomputercollection.com/floppysleeves/
Cheers,
Stefan.
-------------------------------------------------------
http://www.oldcomputercollection.com
Hi
Anyway, it wasn't a Byte magazine. It was one
of the trade magazines ( forget the name ).
Dwight
>From: "John Hogerhuis" <jhoger at gmail.com>
>
>"No Angela, I cannot throw it out!!! One day all of this crap will be
>more valuable than we can possibly imagine."
>
>Yeah, that will work for me...
>
>-- John.
>
>On 5/11/05, Liam Proven <lproven at gmail.com> wrote:
>> Apparently, after years of giving him grief, his wife has somewhat
>> relented when one of them make him rather more than ?5,000. :?)
>
>
I have two x-bus machines that run CTOS/BTOS. A series of book sized
modules that plug together along the bottom.
Box1 CPU
Box2 hard disk
Box3 tape drive
Box4 floppy
Each box has its own external power supply. I'll see if I can take some
pictures.
Mike
>
>Subject: Re: Infocom on PDP-11
> From: Tom Jennings <tomj at wps.com>
> Date: Tue, 10 May 2005 22:10:08 -0700 (PDT)
> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
>As far as sophistication goes -- a better measure than simply how
>clever or nifty a thing is -- how far did it advance the state of
>the art? Good Algol's in the early 1960's look like stuff robbed
>from the far-flung future. A lot of the "compilers" from that era
>we'd today call p-code interpreters (terminology changes) but man,
>Algol60 is neat stuff. (Not the bloated monster Algol68 (I think
>it was) became.
Having programmed in algol on the PDP-8 back when it was a real
eye opener for a new basic programmer. The PDP-8 Timeshare didn't
know strings.
Allison
<delurk>
A fellow had a garage sale recently with a lot of classic hardware,
and we got to talking about classic computer resources online, and I
offered to post whatever he might have left-over to the list in
case anyone is interested.
He's got:
>A MIPS Magnum 4000PC.50
>(2) AT&T 3B2/310 with many (!) boxes of documentation
>Motorola PPC 801
>A Cray Amber terminal
>(2) SCSI1 External DAT drives.
>misc AT era PC cases/motherboards
>borken laser printer
>Epson LQ1100 dot matrix printer
I don't know any further details about this stuff, and he's mostly
looking to just get rid of it. If you have serious inquiries and
really want one or more items, I can pass along questions.
He'd rather see this stuff go to a nice home rather than to the
recycler, but he's under some pressure to get rid of it this week.
If you'd like something off the list, here's my preference list:
1. Pick up in Champaign/Urbana, Illinois. If you want something and
can pick it up over the Summer, I can store it at my storage place
until you can stop by, before August please. Make an offer, no
reasonable offer refused. He's looking for garage sale money here,
nothing over $20. I'm justmiddle-manning for the sake of the
community and preservation.
2. Meet me at the Dayton Hamvention. I'll drag items to the
Hamvention and you take them from me Thursday night or Friday.
Hey, if you want something off his list, you get a guaranteed
good bargain at the Hamvention without even scrounging!
3. We could ship if you're really interested in an time. We'll
fix pricing at 125% of the packing/shipping costs, which should
work out about the same as shipping + what he was asking at the
garage sale.
Like I said, I'll be passing all the money back to him; I'm just
acting as a go-between to save some nifty machines that I just
don't have time to work on.
Thanks,
Dan
>
>Subject: Re: Infocom on PDP-11
> From: John Foust <jfoust at threedee.com>
> Date: Wed, 11 May 2005 07:49:09 -0500
> To: <cctalk at classiccmp.org>
>
>At 12:10 AM 5/11/2005, Tom Jennings wrote:
>>As far as sophistication goes -- a better measure than simply how
>>clever or nifty a thing is -- how far did it advance the state of
>>the art? Good Algol's in the early 1960's look like stuff robbed
>>from the far-flung future. [...]
>>Algol had it's share of horrors, but man it is the basis for
>>nearly all modern languages.
>
>Links for the intrigued... the report:
>
>http://www.masswerk.at/algol60/report.htm
>
>and an implementation for MS-DOS and CP/M, with source examples:
>
>http://www.angelfire.com/biz/rhaminisys/algol60.html
>
>Speaking as that voice from the future, reading ALGOL makes
>me say "You don't want to do it that way." GOTO had not yet
>been exorcised. Did I see a computed goto, where the expression
>calculates the label? Eeek. Certainly it was a step forward,
>but we've also learned a lot since then. When people complain
>that computer languages haven't changed much, remind them
>of the stuff that's fallen out of recommended practice.
>
>- John
Humm, Computed goto.. Sorta like Cs pointer to function.
GOTOs are just another things that can be handy if not abused.
There nothing worse than QB45/dos using nicely structured data
and then littering it with gotos.
I've found most languages that can do something useful
contain cruft.
Allison
in penciltucky (aka Marietta, Pa) too far for me
>from the auction description:
Model 21MX E series
The price is for the lot.
Includes
2 ea Model 7970E digital tape units,
1600 CPI read after write;
General Electric TermiNet 340 pin feed printer;
3 ea Model 7920 disk drives;
6 ea Model 7925 disk drives
here's the auction in case you can't get the following to play as a
link 5193795534
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5193795534&ssPageName=AD…
