test-drb February 2010

test-drb@ccmp.vtda.org

175 participants
221 discussions

by jonas＠otter.se

On 31 Jan 2010 , Pete Turnbull <pete at dunnington.plus.com> wrote: >I am really puzzled by this. The ACIA has no hardware reset line, but >it's very easy to send it a master reset command in software. In fact, >you have to do that to clear the hardware reset condition after a power >up, because the ACIA stays in the inactive/reset condition until you >program it. > >Charlie, you weren't using GTE 68C50s, were you? They did have a few >weird bugs. > I seem to remember having to send three consecutive software reset commands to something or other, quite possibly 6850:s, and probably Motorola ones. If you sent only one, the chip did not reset, you had to send three at once. /Jonas

14 years, 2 months

Reminder for Workshop: Installing CP/M on your S-100 computer , signup begins today Feb.1st

by ragooman＠comcast.net

Reminder: Installing CP/M on your S-100 computer workshop signup begins today Feb.1st For the vintage computer enthusiasts, in conjunction with the MARCH Computer Museum and the Delaware Hackerspace group, we like to invite you to a new workshop this year involving vintage computers. This new workshop is about CP/M and it will teach you how to install, build and configure CP/M on your vintage S-100 computer system. All the necessary steps are shown during the lecture and afterward is a hands-on training session which will let you upgrade your S-100 computer with a floppy disk based system and CP/M. Instruction and lecture will be provided by Rich Cini of the Altair32 emulator project. Please look at the link below about the workshop checklist for a detailed list of requirements about this workshop. You'll need to know what to prepare beforehand to get ready for this workshop. Ask any questions you have about getting ready before the start of the workshop. A knowledge of assembly programming, S-100 hardware, and CP/M operation is required for this workshop. Please do not come unprepared. We currently have seats for 12 workbenches for those who want the hands-on training. An additional 10 seats are available for those who like to watch and learn. If we happen to get more requests for this workshop, we will try to accommodate as many people as possible. This is a first come, first serve event, sorry, but we cannot accommodate latecomers. Once the registration opens, please specify which seat you like to reserve. The workshop is located very close to I-95 for those that are drivng. More information can be found at the Delaware Hackerspace website below. Workshop Checklist - view message thread http://www.vintagecomputer.net/browse_thread.cfm?id=310 Address: 103 W. 7th St. Wilmington, DE 19801 Registration opens: Feb. 1st, 2010 Signup deadline: Apr. 1st, 2010 Workshop Date: Apr. 10th, 2010 hours: Sat: 12noon - 7pm SPONSORS: Bill Degnan http://www.vintagecomputer.net/ Delaware Hackerspace http://hackerspaces.org/wiki/Delaware_Hackerspace Altair32 emulator project http://www.altair32.com/ MARCH Computer Museum http://www.midatlanticretro.org/ Please send any questions offline. Dan Roganti ragooman at comcast.net see you there ! -- http://www.vintagecomputer.net/ragooman/

14 years, 2 months

Heurikon HK68/M130 or M140 manuals?

by ken＠seefried.com

Long shot, but would anyone have manuals for the Heurikon HK68/M130 or M140 (or both)? These are pretty nice 680[34]0 based Multibus-1 boards. KJ

14 years, 2 months

Mentec SBC M70 Usermanual

by quapla＠xs4all.nl

Found during cleanup, a Mentec SBC M70 Usermanual in pristine condition. First edition from November 1st, 1987. It is A4 format with a spiral ring spine and comes >from Dublin, Ireland. Make me an offer off-list. -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10 www.groenenberg.net www.witte-kat-batterijen.nl

14 years, 2 months

Minimig

by alhartman＠yahoo.com

Correct me if I'm wrong, but it was my understanding that the Minimig was only a partial reimplementation of the Amiga 500 hardware. When last I checked the website, which is now down... much work was left to be done to fully implement all the video modes, sprites, collision detection and other parts of the custom chip functionality. I think that floppy support had yet to be implemented, so one had to make images on a real Amiga and transfer them via SDCard to the Minimig. I'd love a modern reimplementation of classic Amiga 1000 - 2000 class hardware. I was following the Minimig until it was sold to another company, and am still following the Natami project. I no longer have an Amiga 500, but will probably look for one in the next few months. I still have a working, though bare Amiga 1000 system. And was recently given an Atari-ST Mega 2 system with hard drive. Since I have that, I'm probably going to be selling the SH502 Atari Drive case (complete except for software and drive, the DMA Cable, power supply, case and ASCSI to SCSI adapter is there) on eBay. My original Jan 1979 TRS-80 Model I took a fall during the move and is now damaged. The case is cracked and is missing chips, and two keys broke off the keypad. I'm not even going to try to apply power to the system until I open it up and check it over carefully. That system has a lot of the mods from "TRS-80 and Other Mysteries" by Dennis Kitsz. It has an Electric Pencil Lowercase mod. The Speedup mod from the book, which automatically throttles down during disk or cassette access, composite out, easily reachable reset switch, built-in Alpha Compatible Joystick port, and an external keyboard port my friend added so we could play 2 player games (He wired up a surplus Coco Chiclet keyboard that Tandy used to sell off the rack, on a long ribbon cable.) I was able to snag an LNW-80 Model I two years ago, but I'd like to get my old system running and setup on a desk in my new house for old-time's sake. Since the LNW will run CP/M besides TRS-DOS compatible OS'es, it would be nice to get it going too. If I spot a Model 4 at a flea someday, I might grab one of those too. I really miss those days. Micros were a lot more fun in the early 80's than they are today. I used to wait for each new issue of 80-Micro with the latest hardware mod, or NewDos zap article with anticipation. Al Hartman Keansburg, NJ

14 years, 2 months

new non-x86 mobos

by dgriffi＠cs.csubak.edu

A couple weeks ago I was grousing about there being nothing in the realm of non x86/amd64 motherboards. I stumbled across something new while looking at the Minimig board: the X1000. Its appears to be a multicore Power of some sort with ideas from the old Amiga machines mixed in. See http://www.a-eon.com/ or http://www.a-eon.com/6.html if you don't want to play the hide-and-seek game. -- David Griffith dgriffi at cs.csubak.edu 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?

14 years, 2 months

Classic Epson printer emulators?

by madcrow.maxwell＠gmail.com

Are there any free or open-source programs that can convert raw ESC/P (Epson printer code) data into bitmap images or PDFs or something? Many classic home computer programs rely on having a printer of this sort in order to print, and while many emulators have a way to dump serial or parallel output to a file, the only interpreters I can find to turn that raw data into something useful are commercial programs that I can't really justify the purchase of, given my student budget... Any help on this front would be much appreciated, Mike

14 years, 2 months

Free for pickup

by ddsnyder＠zoominternet.net

Oops, forgot to mention my location, Butler, PA, USA, near Pittsburgh, PA On Sun 01/31/10 9:01 PM , Mark Davidson mdavidson1963 at gmail.com sent: If you said this before, I somehow missed it... where are you located? Thanks. Mark On Sun, Jan 31, 2010 at 9:59 AM, Daniel Snyder wrote: > Still thinning my vintage stuff.. > Go to http://picasaweb.google.com/DanielDSnyder [2] for a look, category is: Old > stuff looking for a new home > > Available is: > > 1 - Centronics 761 KSR - serial > 1 - Centronics 779 - parallel > 1 - Centronics 781 - serial? > 1 - IBM PS/2 TV - complete > 2 - IBM PS/2 model 30-286 > 1 - IBM PS/2 model 25 B&W > 1 - IBM PS/2 model 50 > 2 - IBM PS/2 model 70 386 & 486 > 1 - IBM PS/2 model 80 with Kingston 486 > 1 - IBM PS/2 B&W monitor > 2 - IBM PS/2 keyboards > > Contact me offine. I really do not want to ship this stuff, but I am willing > to relay > the stuff and at this moment there is no time limit, I am not going to toss > the stuff.. > > Note all items have been stored in my home and have been known to work. I > know for a fact the Centronics printers have been in my home for almost 30 > years. > > I need the space, would like to pass the items to someone else to enjoy.. > whatever > the reason may be, I have narrowed my focus to VAX, Alpha and Integrity > based VMS > boxes. This is one of the few constants in my career in the last 31 years. > > Dan Snyder > > > ----- Original Message ----- From: "Al Hartman" > To: > Sent: Saturday, January 30, 2010 9:00 AM > Subject: Re: Free for pickup > > >> Of the items I posted earlier, the following is still available: >> >> Qty 2 - HP Laserjet IIIP Printers >> >> Box of Misc Network Adapter cards, ISA mixed 8 and 16 bit. Mostly 16 bit. >> All are Novell, Windows 3.x, Windows 95 and Lantastic Compatible. >> >> I have the following to add: >> >> 1 ZIP 100 Drive and Power Supply >> 1 Ditto Tape Backup Drive (Not sure if it still works due to age of rubber >> rollers) >> 1 Apple Imagewriter II >> >> Items are located in Keansburg, NJ 07734 >> >> Contact me off-list via PM. >> >> Thanks! >> >> Al Hartman >> >> > > Links: ------ [1] mailto:ddsnyder at zoominternet.net [2] https://webmail2.agoc.com/parse.php?redirect=http%3A%2F%2Fpicasaweb.google.… [3] mailto:alhartman at yahoo.com [4] mailto:cctalk at classiccmp.org

14 years, 2 months

6809 SBC

by wbblair3＠yahoo.com

> Tony Duell wrote: > >> Having learned assembly language programming on the beautifully > >> simple architecture and instruction set of the 6800, the Byte magazine > >> article linked to below that I read when it was originally published > >> really impressed me.? In the 6809 they made one of the earliest efforts > >> I know of to really tweak an already great uP instruction set based upon > >> an analysis of existing software: > > > > I found the 6809 to be by far the nicest 8-bit CPU I ever worked with. > > The instruction set was simple and very orthogonal, the fact that you had > > various relative addressing modes meant you could write truely > > position-independant code, there were 2 stack points, and so on. Unlike > > certain chips I could name, there were no major misfeatures that I came > > across. > > > > Of course the problem (as we all know) is that it came out too late. By > > that tine everybody was using the Z80 or 6502. Oh well. > > > > It always suprised me that hre BBC micro used the 6502 rather than the > > 6809. By the time the Beeb was designed, Acorn had made a 6809 processor > > board for their System machines, so they must have had experience with > > the chip. THe Beeb is nice, but a Beeb with a 6809 processor would have > > been something else :-) > > > > -tony > > > When I moved from the 6800 to the 6809 (in assembly language - *many* > years ago) I was sort of astounded and at the same time very pleased by > the way many of the little subroutines I had written for the 6800 became > one instruction in the 6809.? I think it will always be my favorite > 8-bit CPU.? My only annoyance at the time was the fact that there was no > way for the software to reset the companion UART chip, whose number I've > completely forgotten by now.? 6821 maybe??? > Later, > Charlie Carothers I was so impressed I even took a photo of it. A photo of the die of an Atmel EF6809CV is a short way down my page here: http://diephotos.blogspot.com/

14 years, 3 months

cctalk Digest, Vol 77, Issue 68

by wbblair3＠yahoo.com

> Dave McGuire <mcguire at neurotica.com> wrote: > > William Blair wrote: > > I was so impressed I even took a photo of it.? A photo of the die? > > of an Atmel EF6809CV is a short way down my page here: > > > > http://diephotos.blogspot.com/ > > ???Those images are nothing short of breathtaking. > > ? ? ? ? ???-Dave Thanks. Thousands of people did 99.999% of the job, I just took a photo of their absolutely beautiful and incredibly useful product.

14 years, 3 months

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test-drb February 2010