test-drb November 2000

test-drb@ccmp.vtda.org

197 participants
507 discussions

by ajp166＠bellatlantic.net

From: Richard Erlacher <richard(a)idcomm.com> >What I like about "single-chippers" is that you have the option of looking >at them as programmable logic. They're not all as fast as CPLD's, but >they're generally not as costly as a CPLD or FPGA capable of duplicating >their function. A Z80 CPU or one of its scions compatible with its >instruction set would still require external hardware to provide the >interface to read-write memory, then the memory itself, and the decoding for When I say "core" for a gate array I mean one of those large ones that can also provide the needed ram, rom and IO. As in ASIC. I almost did a job where the cpu core was 80C88, really hate that CPU and am glad I didn't. Allison

23 years, 8 months

CP/M 1.3 memory requirement

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >>The DOS analog of that would be Windows3.1 is not DOS. >>See the point! > > ????? I don't understand this comment. Or at least I hope I don't. ZCPR >isn't a GUI. It's nothing like Windozes, it's a MUCH better command line >interface. Well CCP is a user interface as is command.com, changing out command.com for Win3.1 still doesnt change the fact that it's a DOS OS with a GUI instend of Command line. So goes it for CP/M, CCP or ZCPR are only a 2k loadable module that can be replaced with anything. For example CONIX is one that can be run over CCP for a unix like command line. >>Now ZRDOS or ZSDOS is a totally different codebase and >>non DRI product that is CP/M compatable and draws form >>the ZCPRx lineage. > > I can't say that I've ever heard of them. It's part of the line starting with P2DOS, suprbdos, Novados, Zdos and a few I may have forgotton. Their rewritten versions (some from virgins) of code that is CP/M files and program compatable. Most Z80 code, faster and most also offer a higher (1gb) logical drive size limit. > BTW one of my current projects uses MP/M. CP/M is childs play compared >to it! The hardwre isn't that much more complicated but the operating >system is MUCH more complex. Not really. I have CPM3 and MPM as well. The bios is a bit more convoluted to allow for memory management and interprocess communication but most of the differences are transparent. the Docs for those two are noticably weaker and add an air of mystery. I've taken the path of adding job scheduling and interprocess managment to cpm2.2 as it had nothing to prevent it. Allison

23 years, 8 months

OT: And the winner is....

by Mzthompson＠aol.com

Several days ago I wrote: > Idea, contest time! We need a name for the form of insanity whereby > you continue to haul home DEC. To which Neil Cherry <ncherry(a)home.net> replied: > D.E.C.^2 ( Dee Eee Cee Squared), DEC Conservationists, what else (see > your statements below). It's not an illness, it's an enviromental > concern. :-) And Sellam Ismail <foo(a)siconic.com> also replied: > Mental DECay? > > har har I will have to pick Sellam as the winner. Then in an email this morning from Germany: > I managed to install VMS 6.1 (VAX) from scratch with a license PAK i > 'borrowed' from a Mentally DECayed person on this machine but i do not > have any UCX installed for two reasons Sellam, as the originator of this, your legacy is going to be such that you were the first person associated with this form of insanity. ;) Mike

23 years, 8 months

ZCPR & Other CP/M Extensions (Was: RE: CP/M 1.3 memory requirement)

by rigdonj＠intellistar.net

At 10:41 AM 11/2/00 -0500, you wrote: >> Hi, >> >> Yes, I'm interested in the disks! A friend of mine wants to try and >> install it on a H-89. I'll look through my ZCPR stuff and see >> if I can find >> out what the differences are in verson 2.2 and 3.0 and report later. > >Ok, if I have time (I've tenatively got a rescue planned for this >weekend), I'll try to dig them out this weekend. Great. I'm looking forward to getting them. I haven't found anything that can read my SB-180 disks so I hven't been able to transfer the ZCPR to anything else yet. I think it would be cool to get it running on a PC! I stuck out. I looked through my ZCPR docs and book but none of them tell what the differences are between ZCPR3 and ZCPR 2.2. "ZCPR, The Manual" only gives the differences between ZCPR3 and CP/M 2.2. I don't know anything about the earlier versions of ZCPR so I guess I'm no help. Joe > >Regards, >-dq > >

23 years, 8 months

B&C Microsystems up600a software, anyone?

by ethan_dicks＠yahoo.com

I keep meaning to ask this... I have an ancient B&C Microsystems universal programmer, model UP600a. I'm running version 3.0something of the software. The largest device I can program is half of a 27040 at a a time. At one point in the past, I tried to download the newer personality files from the B&C Microsystems BBS, but the file was corrupt (full of text garbage, as if caused by either a rampant disk overwrite or a disgruntled employee or customer). Does anyone out there happen to have one of these beasts? I'd love newer software that supported newer devices, both memory (EPROM) and logic (PAL/GAL, etc.). Thanks, -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? >From homework help to love advice, Yahoo! Experts has your answer. http://experts.yahoo.com/

23 years, 8 months

Monitor for iSBC 8024

by ajp166＠bellatlantic.net

-----Original Message----- From: Richard Erlacher <richard(a)idcomm.com> >Yes, you can, but you can't buy a single-chip microcontroller, using the Z80 >core, not some "sorta" Z80-like" thing, that requires no external components >except a clock. Who really cares howmany angels can dance on the head of a pin. As most products are rarely just one chip, especially something that needs Z80 level performance. In the end the skills needed would be Z80(or some other) programming. Allison

23 years, 8 months

Nupon LTS-4, terminal server

by ncherry＠home.net

I have a Nupon LTS-4 terminal server and I'm wondering if anyone has software for the beast. I managed to find software for it but the software appears to be for a model with a different serial interface (a newer Cirrus chip, this one has a CL-CD180-10PC-C). The symptom is if I set the buad rate to 9600 it runs at ~7K (or about a 20% error). I'm not really proficient at 386SX disassembly (yet) so I can't find the rate table to adjust them. Any ideas? -- Linux Home Automation Neil Cherry ncherry(a)home.net http://members.home.net/ncherry (Text only) http://meltingpot.fortunecity.com/lightsey/52 (Graphics) http://linuxha.sourceforge.net/ (SourceForge)

23 years, 8 months

Monitor for iSBC 8024

by ajp166＠bellatlantic.net

From: Richard Erlacher <richard(a)idcomm.com> >> From: Richard Erlacher <richard(a)idcomm.com> >> >> >> Use the editor that comes with the mailer, please. >> > >What??? Unless your system is severely crippled your Email has an editor that will allow your to strip the excess non relevent text. Try it, make it easier to read on the other end. >> I havent a clue why you said that at all since the origin of the smallc-c >> compiler is 8080? I still have the original DDJ articles with sources. >> >What I said (I thought) was that I don't want to fiddle with small-C to the >extent of writing a new code generator for the 'HC11, 'HC05's, 805x-series, >PIC, etc, since Hi-Tech already has a code generator for their compiler for No problem with that. But I thought the initial problem was testing a bunch of ISBC8020s? Where did all the other excess about other cpus come into that? >each of those. It would be a BIG job to do that for the Hendrix compiler, >reduced though it is, since what's needed is a general enough compiler that >once I write a debug monitor based on some existing model I already have and I wouldn't know, I did did the later version for Z80 with TDL opcodes. >know. It's not enough that the 8080 and Z80 are already supported, since Also 8088 and maybe later. >I'll only need to use the 8080, which, BTW, it's not obvious that the >Hi-Tech 'C' supports. As I said, if I'm going to wander into the quagmire, I avoid the quagmire and use asm. >the near future. I'm quite sure nobody is going to hire me to generate code >for the Z80 or 8080. I've been known to write code in assembler as well, >but haven't done anything for hire in about 10 years that has required Z80 >or 8080 coding. While I understand the desire it's all outside the scope of the original problem to test and apparently use a bunch of 8085 multibus cards. Oh, z80 is still out there as Z180, Z380 and Rabbit for embedded apps and CPU library cores in gate arrays. Allison

23 years, 8 months

MULTICS Installation, Halifax

by dhquebbeman＠theestopinalgroup.com

> It was thus said that the Great Douglas Quebbeman once stated: > > > > However, Multics could be re-implemented on any architecture > > that either provides a paged, segmented virtual memory with > > rings of protection, or, on any architecture fast enough that > > those features could be emulated. > > Like the Intel 80386 or higher. > > -spc (Now I have to find info on Multics ... ) I should have mentioned that Multics also was closely tied to a 36-bit word size... a re-implementation could probably get around this, but a port would be difficult... However, a port would work for an emulator, where you'd have control of all aspects of the target architecture. Regards, -dq

23 years, 8 months

FS: Heathkit EC-1

by badger＠vbe.com

I have a Heathkit EC-1 Educational Analog Computer with original manual I'd like to sell. The computer is in unknown functional condition (I don't know if it works right or not) but it looks pretty good. I'd guess I'd have to sell it as unworking. All the parts are there but some of the knobs are "stiff". This EC-1 was in storage since the 1970's ...... it was with some electronic test equipment I purchased at a surplus sale at a college. If you have an idea of it's worth .... either to a collector or as a parts unit please email me at badger(a)vbe.com Thanks, Mike Melland, W9WIS (Oshkosh,WI)

23 years, 8 months

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test-drb November 2000