test-drb April 2005

test-drb@ccmp.vtda.org

269 participants
730 discussions

by dwight.elvey＠amd.com

>From: "JP Hindin" <jplist at kiwigeek.com> > > >On Fri, 15 Apr 2005, Ashley Carder wrote: >> north of Orangeburg, where the stuff is located. I >> can't remember... how heavy is that S/34? I remember >> that it was about 4+ feet tall and maybe 6 or 8 feet >> deep. I can remember one night when I was playing > >Having moved one from Arkansas to Iowa, I can tell you that it isn't a >task to be taken on lightly. Particularly without a lift-deck. > >I'm guessing the unit weighs around 900lbs, is approximately 7' long, 3' >deep and 4' high. >The machine is on good quality casters, so it'll roll like a dream, but >it's extreme weight makes it a royal pain in the butt to move. > >If you'd like a chuckle, you can view my attempts to move it using a Ford >F150, a winch and a pair of lawnmower ramps: > http://www.kiwigeek.com/hjp/comps/IBM_s34/PickUp/ > >JP Hi Of course, there is always the option of renting a forklift. Most any rental place has them. Dwight

19 years, 8 months

K&N Electronics LSL20

by jim＠g1jbg.co.uk

Hi, has anyone got any details on the above device? It is a 20mA loop to V24 interface box, labelled s a "Digital converter line driver". I thought I'd ask before I trace the circuit. Thanks Jim. Please see our website the " Vintage Communication Pages" at WWW.G1JBG.CO.UK

19 years, 8 months

Dead AIM 65??

by dwight.elvey＠amd.com

>From: "woodelf" <bfranchuk at jetnet.ab.ca> > >Dwight K. Elvey wrote: > >>Hi >> They also had ROMs for Forth, that I find more useful than >>BASIC. >> >> >Well if Forth had floating point math is could see it competing with BASIC. >Other than GAMES I found very little other calculator style programs could >be written in BASIC. In hindsight word processing and acounting and games >that really made the mass market for computers. Hi It should be noted that the first version of Word Star ( I think that is the one ) was written in Forth. I'm not saying the fellow that did it was using Forth correctly, just that he was able to get it working in a time frame that would have been unrealistic using BASIC or assembly( by his words ). Floating point has been a common extension to Forth for a number of years. It is just that most uP implementations were done from FIG source listing that didn't have floating point. The lack of floating point has surely caused many to avoid Forth. It is a shame that most all applications that the person believes that floating point is needed can often be better implemented in integer of fixed point. It is a shame that most uP's don't properly support fixed point multiplies and divides. Dwight >Ben alias woodelf >PS. while on the topic of 6502's , does anybody know where I can get >a pdf online data sheet 68B50 ? Datasheets for the 8 bit stuff is getting >harder to find all the time for the original products. All 6800 stuff is getting hard to find. Recently I was writing a disassembler for the 6800 to look at code on a pinball machine. I had to dig real deep into my pile of books before finding something with the code described in it. Dwight

19 years, 8 months

Oscilloscope question

by technobug＠comcast.net

Ethan bemoaned: > I have an old 465 that seems to have died from loneliness... it has a > dead short somewhere in the PSU such that one of the internal fuses > blows violently. I keep meaning to get around to fixing it (it's my > newest scope (of 4)), but just never mange to do much more than prod > at it. > > -ethan If you wander over to <https://www.logsa.army.mil/pubs.htm> and click on "Electronic Technical Manuals (ETMs) Online" (acceptance of the loss of your first-born is required) you will find a wealth of manuals for older test gear. The 465 service and calibration manuals are there in PDF (with hyperlinks!). CRC

19 years, 8 months

Z8530 (was Re: Navtel 9460 Protocol Analyzer info?)

by ajp166＠bellatlantic.net

> >Subject: Re: Z8530 (was Re: Navtel 9460 Protocol Analyzer info?) > From: Brad Parker <brad at heeltoe.com> > Date: Fri, 15 Apr 2005 10:15:01 -0400 >pretty veratile chip. not bad once you got used to it. difficult to >use w/dma hardware, however. I find that odd as the 8530 had on board DMA. I have a tube of them in the PLCC package and fine them not only fast but fairly similar to the Z80 SIO. Now thats not to say the Z80sio wasn't pita to program either. The only other beast out there like the SIO was the NEC MPSC or 7201 (SS as I8274), that was a sio for 808x busses and also a pain to program for. Allison

19 years, 8 months

Dead AIM 65??

by dwight.elvey＠amd.com

>From: "Jules Richardson" <julesrichardsonuk at yahoo.co.uk> ---snip--- > >> The AIM-65 had BASIC as a rather common option >> (don't remember if it was always present), and routinely came with a >> full-sized ASCII keyboard > >Oh, yep, ours has a proper keyboard too. Can't recall whether it has >BASIC fitted or not. > >cheers > >Jules > > Hi They also had ROMs for Forth, that I find more useful than BASIC. Dwight

19 years, 8 months

ASCII art spam

by cb＠mythtech.net

>There's three curious things about this. One, it of course gets >through text-matching filters. Two, it retroactively ruinates >real ASCII art (if this catches on, seems most unlikely). Three, >is there a drawing program for this? The next generation of spam filters needs to start doing spell checking. If more then a certain number of words don't match the dictionary file, then it is rejected. This does double duty, helps filter out spam using letter substitution, and also helps filter out people who can't be bothered with spell check (including all those teens that type like they are chatting via text messaging). :-) -chris <http://www.mythtech.net>

19 years, 8 months

Z8530 (was Re: Navtel 9460 Protocol Analyzer info?)

by ajp166＠bellatlantic.net

> >Subject: Re: Z8530 (was Re: Navtel 9460 Protocol Analyzer info?) > From: Brad Parker <brad at heeltoe.com> >last time I checked the Zilog 8530 didn't have any dma. it's not >capable of being a bus master but itself. > >perhaps we're talking about different things? Yep I munged it with another. The parts I have are the 85C30 and that part is also different >from the base 8030. It has a few improvements. It was pretty easy to mix it all up as I was using it in a Z280 enviroment. Allison

19 years, 8 months

Osborne 1

by trixter＠oldskool.org

Would anyone like a free Osborne? I don't want it, so I'll pass the offer onto you... -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Want to help an ambitious games project? http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/

19 years, 8 months

Looking for ROM code printout for SDK-86

by Nanoman＠stny.rr.com

Hi, I am looking to get a ROM code "dump" for the SDK-86. I have a SDK-86 without the ROMs. Thanks,

19 years, 8 months

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test-drb April 2005