I've been trying to execute the TECO commands in Alice's PDP-10
<http://www.hactrn.net/sra/alice/alices.pdp10> and I keep getting an
error saying "?IFC Illegal character "^" after F". The two command
sequences given have the same form:
[1:i*^Yu14<q1&377.f"nir'q1/400.u1>^[[8
.-z(1702117120m81869946983m8w660873337m8w1466458484m8
)+z,.f^@fx*[0:ft^]0^[w^\
and
[1:i*^Yu16<q1&77.+32iq1f"l#-1/100.#-1&7777777777.'"#/100.'u1r>6c^[[6
.(675041640067.m6w416300715765.m6w004445675045.m6
455445440046.m6w576200535144.m6w370000000000.m6),.fx*[0:ft^]0^[w^\
I'm using tecoc.exe from <http://almy.us/files/tecow32.zip>.
>From my reading of the documentation for TECO, the f command is for
flow control and should be one of:
F' Flow to end of conditional
F< Flow to strt of conditional
F> Flow to end of conditional
F| Flow to else part of conditional
I'm guessing that the commands come from some sort of PDP-10 dialect of
TECO and these commands do something else in that dialect.
: is listed as modifying the next command, so is :i*....* an old way
of modifying the insert command to use *'s as the delimiter for the
text?
Would I be better off pasting these commands into the TECO on
pdpplanet?
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Hi
I wonder if anyone knows what happened to Wilber Williams computer
museum in Queensland:
http://www.gizmodo.com.au/2010/07/can-you-help-save-the-uq-museum-of-it/
I ask for a rather selfish reason, I would like a copy of the file:
http://www.computer.museum.uq.edu.au/pdf/DEC-15-H2BB-D PDP-15 Systems Maintenance Manual Volume 1.pdf
Bitsaver has it, but only as a black and white version. I was hoping
that the UQ museum would have at least a gray scale version.
Hopefully there might be a mirror around?
Kind Regards,
Pontus.
At 20:20 -0600 11/23/10, Bob wrote:
>There is a story I have heard that there was a WWII POW camp in
>Texas?for captured German pilots. The captured pilots were trucked
>from the ship in port to the camp. ?They thought that they were
>being driven around in circles to break them, because they could not
>believe that someone could drive so long and still be in the same
>country, let alone state.
There was a POW camp; my wife's grandfather worked there. I can't
confirm the story about the truck ride, but it would be about a 4-5
hour drive (today) from Houston to where the camp was; longer in
1943-5.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
A client needs an alpha micro, preferably AM-7000 until the end of
the year.
Anyone have one working that they want to rent and have returned in
January?
Please email me at fire at dls.net
Bradley Slavik
I'm trying to identify and find some early if not first specific production
DRAM chips for a project at the Computer History Museum. I've poked quite a
bit about on the web and found lots of good generic information but not much
about specific pioneering devices after the Mostek 16 KiB circa 1976. In
particular I'm interested in the first and/or early vendors of the following
parts
1) 256 Kib DRAM circa 1983 probably from Japanese vendors
2) 16 Mib DRAM circ 1989 IC Master unknown vendors
3) 1 GiB DRAM circa 2000, probably Micron.
I'm looking for a shipment date, photo, chip size and price information.
However, just a vendor name and part number would be a great starting place.
If any of u have or know of some one who has old IC Master's of the
appropriate era that would be a great place to get vendor, part number and
other information.
Any help would be appreciated.
Tom
/
/> I ought to have pointed out that most times doing what i do wastes a
> little time, and in fact it owuld heen fine just to plug the board in and
> power up. But this is amply compensted for by the time saved when thigns
> go very wrong.
Yeah and when you've gone through all the steps, learned what all the chips
are for, plugged them in one by one and finally the whole thing does actually
work, the satisfaction is much bigger.
> Do I conclude from this that the first byte read --- in fact all bytes
> read -- are always 0?
Exactly. And I just figured that they all are framing errors. Here's my test
program that should exit when it reads a byte that has no framing error:
LDAA #%00010000 ; like in jbug (8bit, np, 2stop, no divide)
STAA $8008 ; acia control reg
READ LDAA $8008 ; acia status reg
ASRA
BCC READ ; branch unless data ready
BITA #%00001000 ; check framing error
BNE READ ; branch if framing error
SWI
It never exists no matter what audio file. The only thing that does work is
that the data ready bit stays cleared as long as there is no audio at all.
So it at least reacts to the fact that there is audio or not.
> I assume this ACIA is a 6850. What does the data input do when you play
> the audio file? Where does the Rx Clock signal come from, and is it correct?
Yes, it's a 6850. I measured with a volt meter, I don't have a scope (yet).
RxD and RxC are high when no audio and they both drop to around 2V when audio is
supplied, so I guess there's at least some signal. Also RTS is low as it should.
Something weird that I don't understand is that simply adjusting the audio volume,
the apparent voltage measured on the RxD changes more or less proportionally...
this is supposed to be digital and FM ?
Wim.
Dave writes:
> On 11/22/10 4:12 PM, Tony Duell wrote:
>>> I have a S100 board that is said to be a math processor board
>>> that has a single 2901 on it. I have the manual as well.
>>
>> I find that strange. A single 4 bit slice is not that useful. I asusme
>> there arten;t 2903s as well :-)
> Well, 2901s were fairly expensive chips in those days, and it's
> certainly possible to do wider-than-four-bit math in a four-bit CPU. :)
>> Althoguh AFAIK DEC never used them in a PDP11 CPU. There were, of
>> course, used i nteh floating point processors for some PDP11s, and in the
>> VAX11/730
> And the KS10 as well. I wonder if there are any others; I don't
> think so offhand.
> One of my favorite uses of Am2901s is in the FPF11 floating-point
> processor. For the non-PDP11-savvy, the FPF11 is a strange board that
> can be used in both Qbus and Unibus systems by changing jumpers near the
> card-edge connectors. It uses a 40-pin ribbon cable to plug into a
> microm DIP socket in an F11-based PDP-11 (11/23 or 11/24).
Off the top of my head... DEC also has 2901's in the CI780, and the UDA50, and probably
A bunch of other peripherals/interconnects/host adapters I cannot recall at the moment.
Tim.
A while back, part of an AMD 2900 development
system showed up on eBay. My copies of the software
surfaced today, so the .imd images are up under
http://bitsavers.org/bits/AMD
They are CP/M 1.4, as I recall.
