I'm trying to convert some C code[1] so it'll compile on TOPS20 with KCC.
KCC is mostly ANSI compliant, but it needs to use the TOPS20 linker, which
has a limit of six case-insentive characters. Adam Thornton wrote a Perl
script[2] that successfully does this for Frotz 2.32. The Frotz codebase
has evolved past what was done there and so 2.50 no longer works with
Adam's script. So I've been expanding that script into something of my
own, which I call "snavig"[3]. It seems to be gradually working more and
more, but I fear the problem is starting to rapidly diverge because it
still doesn't yield compilable code even on Unix. Does anyone here have
any knowledge of existing tools or techniques to do what I'm trying to do?
This is part of a project to get Infocom and other Z-machine games running
once again on PDP10 mainframes, either real or emulated. First up is to
get the bare minimum of a current Z-machine emulator running on TOPS20.
Then we can work on screen-handling, a disk pager[4], and porting to other
PDP10 operating systems. I'm hoping that this will lead to fun exhibits
wherever PDP10s are displayed in museum or faire settings.
[1] https://gitlab.com/DavidGriffith/frotz
[2] https://github.com/athornton/gnusto-frotz-tops20
[3] Change an objects shape.
[4] Infocom's Z-machine emulators paged zcode from disk, but Frotz simply
sucks the whole zcode file into memory.
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Hello,
Surfaced on Ycombinator. This one looks good. Something old, something
new, etc. Like my kind of project :-)
:: ZedRipper: A 16-core Z80 laptop
http://www.chrisfenton.com/the-zedripper-part-1/
and some comments:
https://news.ycombinator.com/item?id=21756243
--
Regards,
Tomasz Rola
--
** A C programmer asked whether computer had Buddha's nature. **
** As the answer, master did "rm -rif" on the programmer's home **
** directory. And then the C programmer became enlightened... **
** **
** Tomasz Rola mailto:tomasz_rola at bigfoot.com **
Was going through a box of stuff someone gave me ages ago in keeping
with my philosophy of grab first ask questions later.
At the bottom found a SORD keyboard (regrettably not the whole thing) -
looks like it comes from a M68. Photo:
http://koken.advancedimaging.com.au/index.php?/albums/interesting-finds/con…
As this is all I have of a SORD (so I am unable to test it) I figure it
may be of use to someone else on this list.
(Would appreciate coverage of package and postage from Mortlake Victoria
Australia 3272 please. Please note that its the size of a keyboard and
is a little weighty so you'll need to factor that in. Alternatively I
will be in Melbourne in January 2020 if someone more "local" wants it).
Thank you.
Kevin Parker
someone just posted this on twitter
they seem to have sent an email to everyone and didn't bother to mention this
https://groups.yahoo.com/neo/getmydata
Original asked by : Evan Koblentz?cctalk at snarc.net
On Thu Jul 19 14:36:27 CDT 2018..Zilog 8000 system (model 20 and model 32) replacement boards
..As far as the System 8000 model 20 are conserved their microprocessor board schematics and firmware can be found on the internet but the microprocessor and the MMU's might be hard to get. ? (out of production for some time now).
.. As far as the MMU's are concerned some System 8000 clones used a different MMU with a custom mapping PROM and or others use a Intelligent MCU to emulate the Zilog MMU's....As far as the Model 32 is concerned that a little different, without the original microprocessor board you could always down grade it to a lesser model. It would be easy to get the Z8001 microprocessor on to a 32 bit data bus.? Just some extra data latches if you could find some one to make a custom microprocessor PCB.Use the Z8001 microprocessor pins Bit//word, AD0, AD1 for data bus size signals.AD1 is for data bits 17 to 24 and data bits 17 to 32 depending on the status of Bit//Word and AD0 singals.AD0 is for data bits 0 to 16 with the correct status of Bit//word and AD0 signal.??Bit//Word with AD0 controllers either a upper byte/Lower byte or 16-bit word transfers...Memory greater that 16M with the Z8001 microprocessor on a full 32-bit address bus is possible with a paged memory management circuit. Drivers ?? by who ??..With the model 32 (and some if its clones) on board firmware and or operating enhancements where used for Z8001 ( and some Z80,000)? microprocessor compatibility.? The only other solution is to reverse design a AT&T 3B2 computer back to the Zilog System 8000 bus or use a custom made ARM based microprocessor card with Z8001 emulation in ROM.?..Most of the Z8000 based microprocessor system I have dealt with are newer than the model 32 or are older then the Zilog MMU's chips.?..Any feed back on this email is welcome at ZilogZ80.swingatYahoo.ca? ? ?At=@ please have a subject (Anti spam)..
I have a TRS-80 Model III with a IV upgrade in it (non gate array).
I have a hunch that one or two of the HALs are bad (the primary one
being 8075208).
Anyone have the JED files to program any of these HALs into PALs or
GALs ?
Anyone know a source for these ?
Anyone know if these can be read, or if they are protected (for
example, if I were able to borrow some working ones, could they be
duplicated ?) ?
Thanks,
-- Curt
Hi all,
I picked up an HP 7220C flatbed plotter the other day which (after freeing
the stuck carriage) is responding to panel commands in 'local' mode. For
the terminal RS-232 interface, does anyone happen to know:
a) The character size (7 or 8 bits)?
b) If the connection between terminal and plotter is supposed to be
straight through (i.e. 1:1 pin mapping), null modem, or something else
entirely?
I'm not sure if the plotter considers itself DTE or DCE, given that it has
a modem output port (i.e. it sits partway along in the chain of things).
Oh, there's a "conf test" switch setting on the back - does anyone know the
purpose of that? I'm wondering if it's supposed to echo back to the
terminal any data that's sent to the plotter, but that's purely a guess.
Sadly there don't seem to be any docs online (or much in the way of any
info, to be honest).
thanks,
Jules
Jim,
FWIW: Last time I had company money to deal with this issue I bought a similar model of this:
A Viking DLE-200
https://www.amazon.com/Viking-DLE-200B-Two-Way-Line-Simulator/dp/B004PXK314
Dave.
Sent from Mail for Windows 10
Message: 18
Date: Tue, 3 Dec 2019 22:35:40 -0600
From: Jim Brain <brain at jbrain.com>
?
To continue validating modem functionality, I think it makes sense to
set up a closed loop phone system in my lab that will function well
enough to allow modems to connect to each other (dial tone, ringing,
busy signal, etc.).
I know I can probably whip something up with a 9 v battery and a piece
of cable with rj11s, but I think that will fall short.
That said, I went out to eBay to see if I could source a 2-8 line
something to help, and got smacked around with my lack of telephone
system knowledge.
So, any ideas (or links to eBay auctions) of brands/models/etc. I should
focus on?
Also, if anyone has any modems lying around gathering dust, I probably
should source a few more models. tcpser handles Hayes "+++" spec
correctly, but I should probably support TIES as well, to cite one example.
Jim
--
Jim Brain
brain at jbrain.comwww.jbrain.com
> From: William Donzelli
> My manual only mentions the M200, but it may be an early edition
What is it, and what date is it? DEC-11-HCRB-D, avilable online, is
March, '72. DEC-11-HCRMA-C-D is June, '73.
I see that EK-CR11-TM-004 is also available online:
http://bitsavers.informatik.uni-stuttgart.de/www.computer.museum.uq.edu.au/…
It's from July '75, and also mentions the M600.
> From: Bill Degnan
> I believe I have the engineering drawings document if this is not
> otherwise available.
Bitsavers has the August '71 edition; if yours is later than that, it would
be useful, _particularly_ if it has the M8291, which is the later card.
Noel
