test-drb November 2001

test-drb@ccmp.vtda.org

247 participants
886 discussions

Way OT: Haggis (was RE: Clearly OT (but what the hell...) (was: food

by mythtech＠Mac.com

>Poutine is a Quebecois interpretation of french fries with cheese curds and >gravy. For those from the New Jersey area, it is basically Disco Fries (which you can get at any self respecting diner... the Bendix being the preferable one now that Twin [ch]Oaks has been torn down) -chris <http://www.mythtech.net>

23 years, 1 month

OS9 or Flex09 on 8" disk needed

by jhellige＠earthlink.net

Does anyone have OS9 or Flex09, preferably for the SWTPc, on 8" floppy or a means of making one on 8" floppy? I've finally gotten a nice 8" cabinet with a pair of Siemens' 800-2 drives as well as a bare pair of Shugart 851's and would like to give them a whirl with the DMF2 floppy controller installed in my S/09. This was it's last configuration, running OS9 with the Microware support ROMs on the MP-09A. I could even provide the 8" disks if someone was willing to make them. Thanks Jeff -- Home of the TRS-80 Model 2000 FAQ File http://www.cchaven.com http://www.geocities.com/siliconvalley/lakes/6757

23 years, 1 month

Micro PDP 11/73

by lemay＠cs.umn.edu

Well, I decided to take the day off, so what should happen but that I get email from work teling me that someone has left a PDP 8/75 in a desk with floppy drives on the loading dock (which is very very close to my office...). So, I come in, and of course its not the pdp 8/a i'm expecting, no... Its a Micro PDP 11/73 with a couple of other rack mounted things that i'm guessing are modems or some such (non DEC). Anyways, I take the computer and rack mounting parts, but now i'm full of questions. For one thing, whats the proper way to get to the cards? It looks like i may have to take apart the back end of this thing, which contains about 9 male DB25 connectors and a 2 digit LED numerical display... So far, I can tell I have the KDJ11-B CPU board, which is quad height unlike the A version which the web tells me was dual height. I can see there are cards in the upper 4 slots of the bus, and that there may be a total of 8 slots. Anyways, i'm afraid i'm not knowledgeable on this 'modern' DEC stuff, so any help, like sugestions on the proper way to open the back of this thing, would be appreciated. -Lawrence LeMay

23 years, 1 month

CPU design at the gate level

by ajp166＠bellatlantic.net

Tony, There is a trick... half the calcs result in the same thing. remove the mirrored states and your more than halfway there. Allison -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 7:00 PM Subject: Re: CPU design at the gate level >> >> Tony, >> >> Faster as in is sub 150ns are fairly common and cheap. Whats > >It's still slower than F-TTL I think. > >> problemtic is that the ALU must do about 8-16 different operations >> so that would be at least a 512kN part or larger. > >Well, a 16 bit ALU in a single EPROM (or a pair of 8-bit wide ones) is a >non-starter. You'd need 32 data inputs (2 16 bit words), say 4 or 5 >function select inputs, carry in. That's about 38 inputs, so 38 address >lines to the EPROM, or 256 gigawords. Ouch!. > >8 bits is possible, but still pushing it (around 4M bytes of EPROM -- 16 >data inputs, 5 function selects, carry in, so 22 address lines). > >4 bits is trivial (8 data inputs, 5 selects, Cin, so 14 total, or 32K >nybbles). > >If you're going to cascade EPROMs for more bits, even if you use lookahead >carry, then the time taken for the ALU to calculate a result is around >twice the access time of the EPROMs (once to calcuate P,G, and a possibly >incorrect result, once to correct the result for the Cin signal produced >as a result of P and G from lower ALUs). > >You might be able to save some time by having multiple EPROMs (or the 2 >halfs of the output word of a single EPROM) calculate the 2 possible >results (Cin =0 and Cin =1). Then select between them using (distributed) >multiplexers debending on the actually state of Cin, which should be faster >then another EPROM access. > >-tony >

23 years, 1 month

Clearly OT (but what the hell...) (was: food

by ajp166＠bellatlantic.net

Tatties and neeps, love them and grew up with them. Never did haggis and would never as I hate lung. Allison From: Pete Turnbull <pete(a)dunnington.u-net.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 6:14 PM Subject: Re: Clearly OT (but what the hell...) (was: food >On Nov 6, 14:47, Roger Merchberger wrote: > >> (Oh, and as an aside, what's Haggis?) > >Minced sheep's liver, lungs, and heart (the "pluck"), mixed with oatmeal, >suet, and spices, sewn into the sheep's stomach bag and boiled. I grew up >in Edinburgh with the stuff and I hate it, but many consider it a delicacy. > Traditionally served with boiled mashed potatoes ("tatties") and turnip >("neeps") and on special occasions like Burn's Night with a glass of >whisky. Search for "Macsween" on the web -- theirs are widely rated the >best. > >I've only once seen it served for breakfast, thank goodness. I put that on >a par with the person I saw eat two raw onions with a cup of coffee for >breakfast. > >-- >Pete Peter Turnbull > Network Manager > University of York

23 years, 1 month

Rubber Restorer...

by pete＠dunnington.u-net.com

On Nov 6, 17:32, One Without Reason wrote: > > What a kid's chemistry kit needs is ethyl hexaperchlorate. And Caesium > metal stored in kerosene. Fun fun fun fun fun. I've got hydrazine, sodium in paraffin, potassium in paraffin, iodine, bromine, a few other things. Will that do? :-) No caesium, though :-( -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

Clearly OT (but what the hell...) (was: food

by pete＠dunnington.u-net.com

On Nov 6, 17:02, Sean 'Captain Napalm' Conner wrote: > I don't know what Poutine is, but I do know what Haggis is. Tripe [4]. > Or in other words, cow stomache. Sorry, I'll pass. Not quite. Haggis is sheep; tripe is intestine. I do, however, completely concur with your enthusiasm for the stuff :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

VAXserver question

by vance＠ikickass.org

Hi. I am trying to get four VAXserver 3100's working. However, when I try to boot from my RRD42 (it is in 512 mode), it gives me an error DEVOFFLINE. I have tried more than one RRD42 with more than one machine. I need help ASAP. Thanks. Peace... Sridhar

23 years, 1 month

OT: Chemistry Sets (was RE: Rubber Restorer...)

by pete＠dunnington.u-net.com

On Nov 6, 7:44, Feldman, Robert wrote: > do shudder a bit to think of some of things we did, though, like playing > with big globs of mercury in our hands. I still have a jar containing about 1/4 pint of the stuff :-) > BTW, water glass is Sodium Silicate, not phenothalien. And carbon tet, not > benzene, was dry cleaning fluid. Yup. But it's spelt "phenolphthalein". > As kids, my brothers and I used carbon tet > in killing jars to gas butterflys for our collection. It is banned in most > places now, and benzene use is severely restricted, as it too is a strong > carcinogen and bad for your internal organs. It's been banned here for 25 years or so. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

Solbourne (fwd)

by optimus＠canit.se

I got this on another list. Could be of interest here, too.

23 years, 1 month

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test-drb November 2001