test-drb February 2012

test-drb@ccmp.vtda.org

158 participants
158 discussions

by fjkraan＠xs4all.nl

There are at least five different boot ROMs for the Model II. I posted them with some disassemblies and comment at: http://fjkraan.home.xs4all.nl/comp/trs80m2/. If someone has knowledge of another version, please let me know. Fred Jan

12 years, 3 months

VAX Maintenance Handbook, VAX-11/750

by steve_spiller＠msn.com

Does anybody have a mirror of this online somewhere? http://vt100.net/manx/details/1,2827 I find myself in possession of an 11/750 that doesn't quite work right and it seems this would aid in troubleshooting the thing. Thanks,Steve

12 years, 3 months

Lisa in Kansas City, mo

by jws＠jwsss.com

Just passing it on. I have boots on the ground there if it helps, but no interest in this (as in I don't have ownership). Listing shows some knowledge on the part of the owner. Posting: Own part of the Apple history with this RareVintage Lisa Computer. The Lisa computer was introduced by Apple in the early 80's. This Rare Vintage Lisa Computer will power up but will not accept a floppy disk. The case of the computer is in excellent condition with slight yellowing. The monitor is clear and all the keys on the keyboard appear to work with no chips on the corners. Comes with the mouse. The original price for a Lisa computer was $10,000. http://kansascity.craigslist.org/sys/2841035465.html

12 years, 3 months

ATTN: Nerds UK and Down Under: Television Program about 1980s Hackers (fwd)

by sellam＠vintagetech.com

I am forwarding this to the list in the hopes that it reaches interested parties in the UK and/or Australia (not sure where this production is intended to take place). Here's an opportunity to claim your 15 minutes of fame. See below forwarded message. Reply-to: Janie Parker <janieparker at me.com> -- Sellam Ismail VintageTech ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintagetech.com Whatsoever a man soweth, that shall he also reap...The truth is always simple. ---------- Forwarded message ---------- Date: Thu, 16 Feb 2012 00:50:40 -0800 (PST) From: Janie Parker <janieparker at me.com> To: vcf at vintage.org Subject: Television Program about 1980s Hackers Hi, I am writing to tell you about a project that Matchbox Pictures is making for Channel 10 called Underground. It is based around the hackers working in Melbourne around 1988/89. To help tell the story , we need to accurately replicate the equipment that was used, Commodore 64, Amstrads etc and then the information that is on the screen. We are searching for people that may collect this equipment to loan, sell or hire to us. In our story the hackers get into various Organisations including the US Military/Police/University via the use of a modem. We will need to replicate this by programming codes to make these visuals. Also in the project we have a scene where we are recreating a Computer Market- we will be making up several tables of equipment from the period. This is a scene where we would like collectors to bring along their equipment and be an extra for the day. So there are essentially 3 areas where we would love to get some help from your organisation members. I was wondering if you might be able to put out a message to the group and we could offer you a souvenir from the film, a signed photograph or similar. We are very happy to hear about your organisation and realise that it can be a very valuable resource and i hope we can make it worthwhile and interesting for you. Please feel free to call me to discuss further, Cheers Janie P

12 years, 3 months

Imaging OSI disks

by dm561＠torfree.net

----- Original Message: Date: Wed, 01 Feb 2012 17:04:13 -0800 From: "Chuck Guzis" <cclist at sydex.com> On 1 Feb 2012 at 16:46, Fred Cisin wrote: > In XenoCopy, I did a few other formats besides CP/M, such as P-System, > "Stand-Alone-BASIC", Coco, etc. But, ONLY ones that could be done with > PC hardware. > > Alas, for the OSI, you will need to build some hardware to read them. > I do NOT know the details, but I've heard that that hardware can be > built around a UART! Could be done with a pulse-timer board, such as a Catweasel pretty easily. Or a small MCU with its built-in UART could also do the trick. Moving heads, etc. is simple. To see what OSI used for data separators and other interface, I believe that somone has a Sam's Photofact online for the C4P showing schematics and timings. --Chuck ------ Reply: Thanks, guys! Now that you've jogged the gray cells I seem to remember something about that 6850 kludge. I was trying to locate a boot disk image for someone and was told that you couldn't do it on a PC so, being from Missouri (Canada) I just wanted to confirm that is indeed the case.

12 years, 3 months

Thanks to Jay West for all things classic computer

by legalize＠xmission.com

I'd like to thank Jay West publicly for graciously providing us with bandwidth, storage space, server setups and so-on to support our little endeavours. More importantly, Jay donates his personal time to maintain the infrastructure we have all come to depend on. You may wish to express your thanks, as I did, by making a donation to help cover costs and express your appreciation. Please note that Jay has not asked me for any help in this regard, but considering all he does for me (hosting bitsavers, manx and my computer graphics museum site) I felt it only proper. -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

12 years, 3 months

Fwd: Re: TRS-80 Model II floppy controller

by fjkraan＠xs4all.nl

Hi Eric, > [Also sent to cctalk, which appears to be down at the moment.] > > Fred Jan Kraan wrote: >> There are at least five different boot ROMs for the Model II. I posted >> them with some disassemblies and comment at: >> http://fjkraan.home.xs4all.nl/comp/trs80m2/. If someone has knowledge of >> another version, please let me know. > I don't know of another ROM version, but I can explain I/O port EF. It > is used for drive select, density select, and side select. > > Bits 3 down to 0 are the drive select bits, which are active low. At > any given time, either all four should be high (no drive selected), or > one should be low and the other three high. > > Bit 6 is side select, which should be 1 for side 0, and 0 for side 1. A > single-sided drive will ignore this, but for a double-sided drive it > needs to be set to the correct value, even if the medium is single-sided. > > Bit 7 is 0 for FM (single density), and 1 for MFM (double density). > > The boot ROM appears to only ever write 4E or 4F (hex) to port EF. 4E > will select drive 0, FM mode, side 0, while 4F selects no drive. This > makes me wonder whether the documentation for bit 7 is correct; do Model > II boot floppies use a single-density boot sector? Yes, they do. Weird, but probably more 'standard'. > > If the selected drive is double-sided, Port E0 bit 1 should read 0 for a > single-sided diskette in the drive, and 1 for a double-sided diskette, > as sensed by the index sensor of the drive. (Double-sided diskettes > have the index hole in the jacket at a different angular position, and > double-sided drives have two sensors, to distinguish single-sided from > double-sided media.) > > Later versions of the FDC card also allow the WD1791 FDC chip to be > reset by writing to port E8. The data is ignored. > > Aside from some of my own comments that have been added, this > information is summarized from the Radio Shack "Technical Reference > Manual TRS-80 Model II Catalog Number 26-4921 Revised Floppy Disk > Controller Supplement". Any errors above are almost certainly mine. > > Eric > Thanks, I updated the comment in the disassemblies. Most of the information is also in the 1980 version of the Reference Manual, but not the E8 port. Fred Jan

12 years, 3 months

testing testing

by halarewich＠gmail.com

hello all havent seen qanything from the list since feb 9th please piong back if you read this chris

12 years, 3 months

Is Classiccmp Active?

by jhfinedp3k＠compsys.to

Is Classiccmp Active? Jerome Fine

12 years, 3 months

testing testing

by rich.cini＠verizon.net

I'm seeing the messages. ------Original Message------ From: Chris Halarewich Sender: cctalk-bounces at classiccmp.org To: CCTalk ReplyTo: CCTalk Subject: testing testing Sent: Feb 15, 2012 7:24 PM hello all havent seen qanything from the list since feb 9th please piong back if you read this chris Sent from my Verizon Wireless BlackBerry

12 years, 3 months

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test-drb February 2012