test-drb July 2004

test-drb@ccmp.vtda.org

259 participants
518 discussions

by dwight.elvey＠amd.com

>From: JMeyer101(a)aol.com > >I recently acquired a few older computers. One of the units is a working MCS Intellec 4. Unfortunately, I have no knowledge of how to program this computer or what accessories can be used with it. Can anyone help me out? > >Thanks, > >Jeff > Hi Jeff As I recall, there wasn't any OS or anything for these. They were primarily used to run experimental code on or blow EPROMs for some other machine. They usually had enough ROM in them to do things like take data from a paper tape reader and program proms. They may have had some form of monitor code as well. They usually had cards with hardware to emulate the 4001 I/O functions so that one could debug their code befor commiting to the mask ROM in the 4001's. Joe R. might have more info on this machine. It is a collectors item for sure. I do have some manuals for the MCS-4 series parts that can help and if you can dump the EPROMs in the machine, I can disassemble them for you. The EPROMs are most likely 1702A's. These do require some non-standard voltages. One can often make up an adapter with an external supply to read these as though they were 2716 or something on a standard EPROM programmer. I am setup to read and write 1702A's on my 4004 machine. ( not an Intellec-4 ). Although, it doesn't talk about the Intellec-4, the manual I have does sedcribe the 4004. I also have a newer manual that describe the 4040 as well. I just sent a copy of the older manual off to one of the other follows and it cost about $13 to mack copies and send it to him( as I recall ). Dwight

20 years, 4 months

Article on data rot on CD's

by msokolov＠ivan.Harhan.ORG

Paul Koning <pkoning(a)equallogic.com> wrote: > Teo> .... I would also like to know what > Teo> affect printable adhesive labels have on media... > > I have a simpler rule for those: "just say NO". So how is one supposed to label recorded CDs then? There needs to be some way to identify which CD-R contains what... MS

20 years, 4 months

HP 1000 ROM part number history PDF

by jdbryan＠acm.org

For those interested, the HP M/E/F-Series ROM Part Number History that I mentioned in an earlier post is available as part of the "Communicator/1000 for Software Update 6.2" PDF available at: http://www.hp.com/products1/rte/tech_support/5963-4402.pdf See pages 3-120 through 3-124. -- Dave

20 years, 4 months

OT-ish - converting hex output to binary on a Unix platform

by julesrichardsonuk＠yahoo.co.uk

Silly question, but maybe someone here's found a nice way of doing this using standard Unix tools... I have a few files in hex format (actually ROM dumps) and want to convert them to binary. Sort of the reverse of the hexdump utility. I'm not aware of a standard (and probably on-topic!) Unix util to do this, but maybe someone knows if there is one, or a handy way of doing this using some of the standard text-processing utils that Unix has... (files are in the format of 16 pairs of uppercase hex digits per line, with a trailing space after every pair - even the last one on a line) I'm rapidly coming to the conclusion that I need to remember some C again - and I've only just finished emptying my brain of it after the last time I needed to code in it a couple of months ago :-) cheers Jules

20 years, 4 months

Whirlwind: Re: First computer with real-time clock?

by aek＠spies.com

Kent C. Redmond and Thomas M. Smith, Project Whirlwind: The History of a Pioneer Computer, Bedford, MA: Digital Press, 1980. ISBN: 0932376096 The book is pretty light on techical information on the computer, however. I'm hoping there is some meater info on Whirlwind buried in the CHM stacks.

20 years, 4 months

Cirris 1000

by Lee.Davison＠merlincommunications.com

> Holy moley! Speaking of word usage, I sure hope there's nobody from > Wales on this list. Why should we be offended? Just 'cos Joe can't spell? 8^)= Lee. >> Jim, >> >> Yes I still have it. The winnng bidder welshed out and >> never paid for it. BTW note my address above. The address >> that you sent the message to is for a mailing list. >> >> Joe ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

20 years, 4 months

OT-ish - converting hex output to binary on a Unix platform

by stephane.tsacas＠gmail.com

ahhhhh okay :) You mean if you have 23 as input (2 digits/ascii code of 2 and 3) the output should be the binary value 0x23 in one byte. Correct ? So input is ascii and output is a binary file, not ascii. awk --non-decimal-data 'BEGIN {RS=" "} {x="0x"$0; printf("%c", 0+x);}' | od -t x1 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 1F 20 FA FB FC FD FE FF 0000000 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 0000020 10 11 1f 20 fa fb fc fd fe ff 0000032 I use 'od' to do the binary to ascii conversion so I can print the result. But you can also redirect the output in a file and load it in emacs (in hexl-mode) to double check. Massaging of the value can be done before the printf as in : awk --non-decimal-data 'BEGIN {RS=" "} {x=$0; x++; x="0x"x; printf("%c", 0+x);}'|od -t x1 1 2 3 0000000 02 03 04 /s On Fri, 30 Jul 2004 19:40:51 -0700 (PDT), Dwight K. Elvey <dwight.elvey(a)amd.com> wrote: > > >Date: Sat, 31 Jul 2004 04:16:09 +0200 > >From: "Stephane Tsacas" <stephane.tsacas(a)gmail.com> > >To: "Dwight K. Elvey" <dwight.elvey(a)amd.com>, "General Discussion: On-Topic and > Off-Topic Posts" <cctalk(a)classiccmp.org> > >Subject: Re: OT-ish - converting hex output to binary on a Unix platform > > > >awk --non-decimal-data 'BEGIN {RS=" "} {x="0x"$0; printf("%d ", x)}' > >0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 12 1F 20 FC FD FE FF > >0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 31 32 252 253 254 255 > > > >better ? > > Hi > I think your still missing the point. Your printout is > all in ascii. If things were working as expected the > number '31' hex would display as '1' when printed. Many hex > numbers would not even display. It looks like the variable > is now correct but you need to write it as the byte value > to a file not convert it to the decimal printed > as ascii digits. 255 is the binary values that are 00110010 > 00110101 00110101. This is 3 values not the one value 11111111. > I think you are still confusing the byte with the displayed > value. > Am I making sense? > Dwight > > > > > > >On Fri, 30 Jul 2004 18:26:12 -0700 (PDT), Dwight K. Elvey > ><dwight.elvey(a)amd.com> > >wrote: > >... > >> I'm not sure this is what he is looking for. I think > >> he wants the hex number converted to a byte value > >> not just printed in ascii as a binary value. > >> Dwight > >> > >> > > > >

20 years, 4 months

PDP-11/04 issues

by doc＠mdrconsult.com

I have a new-to-me 11/04 in the kitchen, and I'm having some very odd problems with it. Slot 1 - M7263 11/04 CPU Slot 2 - empty Slot 3, AB - M9301-YA Slot 3, c-F M7859 KY11-LB Console interface Slot 4, C-F M7856 SLU, switched for 9600bps, 8N1, 20mA C.L. console Slot 5-6 - G657/H228-B 64KW core assy. Slot 7-9, D - G727 grant continuity modules Slot 9, AB - M9302 Terminator In the "book" configuration, as above, it boots to zeroes on the console LEDs with the RUN light and SR DISP lit. I can CLR the SR DISP, but the only other response I get with the panel is by halting it (CNTRL-HALT), which lights the BUS ERR light. On the other hand, if I remove the M9302, the system powers up to 000002. I can load and examine addresses from the console, deposit code, etc. CNTRL-HALT increments the counter, and CTRL-BOOT brings up the console emulator on the VT220. I can run L, E, D, and presumably S commands from the console emulator. Since I don't have any mass storage on it yet, that's as far as I've gone. Last, if I replace the M7263 with an M7266 and M7265 in slots 1 and 2 respectively, All the above applies excpt there's no terminal output. There's something decidedly un-kosher there, and I'm not catching on. It doesn't help that the processor handbook I have assumes MOS memory and contradicts everything I can find on Teh Inturnet about board placement. (It says something about CC that I'll try configurations I've seen twice in the archives over DEC's own literature.) So, the questions: Is there a simple program (or set of) I can key in to test operation? I'm no programmer, so you'd need to tell me the expected result, too. Is this correct behavior? Running without a terminator seems very wrong. (I've tried replacing the G727 cards with G7273 NPG cards, BTW) I keep seeing references to the DIP switch settings on the M9301 board, but I can't find a reference to tell me how they should be set. Are we having fun yet? ;-) Yes, this is my two weeks at home between travels, my wife is visiting her mom in New England, and I'm catching up on Geek Time. There are 3 PDP-11s, a new-to-me IBM 9348-012 9-track tabletop, several terminals, laptops, and monitors, and an Amiga A3000 in the dining room right now. *I'm* having fun. Doc

20 years, 4 months

OT-ish - converting hex output to binary on a Unix platform

by dwight.elvey＠amd.com

>From: "Stephane Tsacas" <stephane.tsacas(a)gmail.com> > >I guess you have hex digit as input, not prefixed by 0x (if they are, >remove the string "0x" from the x= statement. Maybe that code might >help : > >awk --non-decimal-data 'BEGIN {RS=" ";} {x="0x"$0; s=""; while (x > 0) > { s=and(x,1)""s; x=rshift(x,1); } print s}' > >0 1 2 3 4 5 6 7 8 9 a b c d e f as input will print : >0 >1 >10 >11 >100 >101 >110 >111 >1000 >1001 >1010 >1011 >1100 >1101 >1110 >1111 > >you can put your own code after the x= statement I guess. >Stephane > ---snip--- Hi I'm not sure this is what he is looking for. I think he wants the hex number converted to a byte value not just printed in ascii as a binary value. Dwight

20 years, 4 months

Help with SMS Unibus controller

by doc＠mdrconsult.com

The model number is FD1100i, with a 50-pin Berg header and 3 34-pin headers. Found it in a full-height PDP-11/04. Pics of the SMS board and the 11/04 at http://www.docsbox.net/11-03/ Extreme hi-res scan (1.3MB jpeg) of the SMS board at: http://www.docsbox.net/11-03/FD1100i.jpg Out of consideration for low-bandwidth viewers, the hi-res scan is *not* included in the album. You'll need to go there explicitly. Docs would be nice. Doc

20 years, 4 months

← Newer
1
2
3
4
5
6
7
8
9
...
52
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb July 2004