test-drb

test-drb@ccmp.vtda.org

101090 discussions

by rtellason＠verizon.net

I've added a few user manuals and such to my manuals page, some of which might be of interest... http://mysite.verizon.net/rtellason/manuals.html -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

17 years, 8 months

UNIX PC 3.51 development floppies

by aek＠bitsavers.org

are now up under http://bitsavers.org/bits/ATT/unixPC with the exception of the virtual device interface disk, which was completely unreadable (seems odd, since all the rest read perfectly)

17 years, 8 months

Looking for Norsk Data ND-100 info.

by aek＠bitsavers.org

> I'm looking for ND-100 information. Some documents are now on line under http://bitsavers.org/pdf/norskData

17 years, 8 months

VT220 keyboard (cont'd)

by charlesmorris800＠centurytel.net

Thanks for the replies, all, especially Tony Duell who had it spot-on: >This normally means there's a short in the keyboard matrix, as if one key >is stuck down. > >What I would do is open up the keyboard casing (there are 2 screws under >the plastic posts/feet) and remove the internals. (snip) >Connect the PCB to the terminal with the normal cable and power up. Most >likely the LEDs will go through the normal sequence and there'll be no >error message, which shows the fault is in the keyboard itself. The LED's do indeed cycle when the isolated PCB is hooked up, and eventually "VT220 OK" appears on the screen. So now I either have to find the shorted key (it's pretty dirty in there so blowing with compressed air might help) or just get another keyboard. I won't try and wash it after reading the warnings here. BTW I see one on ebag right now (190254818657) but it's a "VT220-Style" unit, made by another manufacturer. Think it'd work with a real VT220? thanks Charles

17 years, 8 months

AM9511 - AM9512 Manuals

by technobug＠comcast.net

I've uploaded scans of: "Algorithm Details for The Am9511 Arithmetic Processing Unit" <elipsoid.home.comcast.net/AM951X/Am9511 Algorithm Details.pdf> "Am9511A/Am9512 Floating Point Processor Manual" <elipsoid.home.comcast.net/AM951X/Am9511A-9512FP Processor Manual.pdf> Enjoy, CRC

17 years, 8 months

Help with PDP-11 Unibus Map Hardware / Software under RT-11

by jhfinedp3k＠compsys.to

Hopefully, this request is clear enough to be understood. Both the software and the hardware portion of the questions are independently important, so please answer one aspect even if you can't help with the other. Over the past 30 years of using PDP-11 software (RT-11 over 95%) and hardware, I have never had occasion to use a Unibus system with more than 256 KB of memory (such as a PDP-11/34). I would appreciate help in understanding the Unibus Map hardware which (if I understand its purpose correctly) is to convert 18 bit addresses given to a Unibus controller into 22 bit addresses for real physical memory for systems like a PDP-11/84 and perform DMA from / to the hard drive. Also helpful would be an explanation of the related software used under RT-11 along with exactly where the Unibus Map hardware is located on a real DEC system (on the CPU board I presume) since the identical CPU board is used for both the Qbus and the Unibus with both the PDP-11/84 and the PDP-11/94. ------------------------------------------------------------------------- DO NOT READ THE FOLLOWING if you don't use RT-11!!!!!!! By way of context, I have successfully modified the HD0: device driver originally written by John Wilson which obviously executes ONLY under E11. Last week, John mentioned in a private e-mail that it is possible to direct the HD0: "controller" (all references to hardware in quotes refers to E11 software) to ignore the "Unibus Map hardware". Since I execute under E11 using Qbus emulation in order to stay totally compatible with the real DEC PDP-11/23, PDP-11/73 and PDP-11/83 systems (all Qbus and all with 4 MB of physical memory) which I have available for comparison testing, user buffers in physical memory above 256 KB are often a situation which can't be avoided. Consequently, it had always been a high priority to have a 22 bit device driver for HD0: under E11 BECAUSE HD0: is TWICE as fast as MSCP (DUX.SYS device driver). In addition, I have also been able to write code that avoids the overhead of using the HD0: device driver which makes HD0: FOUR times as fast as MSCP and also allows for direct access of 2 TB of disk space via a 32 bit block number. Since I have an immediate application for a data base of 32 GB (I have a disk drive of 160 GB, so 32 GB is only 20% of its capacity - although under RT-11 15 years ago in 1992, 32 GB would have been only a dream), the code which I have written will actually be used quite soon. However, I would very much like the HD0: device driver to be able to execute under both "Qbus" and "Unibus" hardware. And while I can test the code for a "Qbus" and for a "Unibus" without a "Unibus Map", I am not clear about what is required for a "Unibus" with a "Unibus Map" such as a PDP-11/84 running under RT-11. Megan are you still watching the list? Allison, if you can't answer, can anyone but Megan help? Is anyone else familiar enough with the "Unibus Map" that you can suggest what RT-11 actually needs to do with the "Unibus Map"? A solution is to check the "hardware" configuration and refuse to allow the HD0: device driver to LOAD or .Fetch if the modified version is not executing under "Qbus hardware". By the way, if anyone who is thinking of a controller for the Qbus which is able to use SATA drives, I would be happy to modify an RT-11 device driver to an HD0: type device that is able to handle drives up to 2 TB in the same manner that DU(X).SYS can handle drives up to 8 GB. Anyone interested?? Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

17 years, 8 months

Making an RT-11 boot disk

by dbetz＠xlisper.com

I'm trying to use simh to create an RT-11 bootable RX50 disk and am following some instructions posted by Megan Gentry a while ago. I've created the disk image but am having trouble making it bootable. The copy/boot command claims it can't find the RT-11 image but it is clearly on the floppy (du0). Any idea what's going wrong? .dir du0: 10-Apr-99 RT11XM.SYS 106P 20-Dec-85 DU .SYS 8P 20-Dec-85 TT .SYS 2P 20-Dec-85 PIP .SAV 30P 20-Dec-85 DUP .SAV 47P 20-Dec-85 DIR .SAV 19P 20-Dec-85 RESORC.SAV 25P 20-Dec-85 EDIT .SAV 19P 20-Dec-85 MACRO .SAV 61P 20-Dec-85 CREF .SAV 6P 20-Dec-85 LINK .SAV 49P 20-Dec-85 LIBR .SAV 24P 20-Dec-85 FILEX .SAV 22P 20-Dec-85 HELP .SAV 132P 20-Dec-85 BATCH .SAV 26P 20-Dec-85 FORMAT.SAV 24P 20-Dec-85 SETUP .SAV 41P 20-Dec-85 SPEED .SAV 4P 20-Dec-85 DATIME.SAV 4P 20-Dec-85 LET .SAV 5P 20-Dec-85 SPLIT .SAV 3P 20-Dec-85 CONFIG.SAV 7P 20-Dec-85 SWAP .SYS 27P 20-Dec-85 23 Files, 691 Blocks 95 Free blocks .copy/boot du0:rt11xm.sys du0: ?DUP-F-File not found DU0:RT11XM.SYS

17 years, 8 months

WD1001 (Fortune-32?) Was: boards

by aek＠bitsavers.org

http://mysite.verizon.net/rtellason/pa020085.jpg I haven't seen the inside of one for a while, but this may be for a Fortune-32 JAM or someone with a machine handy (Eric?) could confirm it. There were different 'dash' configurations for the WD1001, according to the WD catalog. The ones listed use ribbon cable connectors.

17 years, 8 months

WD1001 (Fortune-32?) Was: boards

by jam＠magic.com

Roy, Al, > http://mysite.verizon.net/rtellason/pa020085.jpg > > I haven't seen the inside of one for a while, but this may be for a Fortune-32 > JAM or someone with a machine handy (Eric?) could confirm it. Yes, that's a hard disk controller for the Fortune 32:16 computer. I would be happy to save it from going to the scrap heap. James Markevitch

17 years, 8 months

HP 9000/300 computers available

by devilanse＠gmail.com

Hello, The company I work for has approximately 15 HP 9000/300 computers available. These are mainly the 310 models. There are a couple of other models too. Most of them have the SRM boards installed. There is also a HP9826 available. Also are keyboards and monitors. There are NO hard drives or floppy drives. We are going to do an renovation of the area they are stored in. They are free for local pick up in Lexington KY or if you arrange for freight pickup, we will put them on a pallet and wrap them. If there are no takers in 30 days, they will be scrapped. thanks Max

17 years, 8 months

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