test-drb December 2018

test-drb@ccmp.vtda.org

174 participants
203 discussions

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p112

by jtsdadinaz＠hotmail.com

Are there any boards available or rom monitor updates?

6 years

sun model 47. code 4/40 does it have the nvram with battery?

by michael.99.thompson＠gmail.com

> > Date: Sun, 2 Dec 2018 16:49:37 -0800 > From: Alan Perry <aperry at snowmoose.com> > Subject: Re: sun model 47. code 4/40 does it have the nvram with > battery? > > The RDI Britelite (laptop) is a SPARCstation IPX system board in a > laptop chassis. > I have IPC, IPX, and LX versions of the RDI Britelite. -- Michael Thompson

6 years

N8vem and z80sbc

by trtech＠thetrtech.com

Looking for software especially rom code for both of these SBC boards.

6 years

Operation Codes

by pbirkel＠gmail.com

https://www.asc.ohio-state.edu/dunlap.3/humor/instruction.set.html ERS Erase Read-only Storage FPT Fire Photon Torpedoes GCAR Get Correct Answer Regardless XIO Execute Invalid Op code Among others! -----

6 years

Data General Eclipse Info needed

by g-wright＠att.net

I'm trying to id this system I just rescued last month.? It is an Eclipse of some type. Chip date codes are 1976-1977? The front panel is white with blue paddle switches.The rear panel ID plate says? it's a 8461, SN 4802-142-157. it has Options? 4192, 4010, 4042.? it's a 16 slot back plane and was part of a EMI? Cat scan system. There are 16 boards in this, 9 are DG and the rest my are EMI scanner boards. Not sure what sales model it is?? ie? C330 or C130 or ??? The front panel is trashed, so what are the differences? between the front panels fromother models. Are there any manuals for this out there ?? The back plane has 2 damaged chips.? one has a? 74S133 which i understand the other has 20a.?if I read it right.? looks to be a hex inverter of some type ?? Any help would be appreciated Thanks, Jerry

6 years

Text encoding Babel.

by guykd＠optusnet.com.au

Ouch, what was I thinking? Mentioning a project I fundamentally can't talk in detail about yet; not very smart. Thus spawning a thread guaranteed to go chaotic. Sorrrry! Also I've changed the title, since it's disrespectful to drag a deceased person's name along with this. I've been busy a couple of days, didn't have time to follow the thread. Still busy, but briefly with extracts: @ Keelan Lightfoot > Our problem isn't ASCII or Unicode, our problem is how we use computers. > Markup languages are a kludge, relying on plain text to describe higher level concepts. [snip lots] Nice post, and I agree with all of it. This is the type of thinking needed, and in general much like my approach. Except I'm a software and hardware designer, synthesist, and pursue practical results. Or at least _try_ to. Funny you mention keyboards, as that's one of the project's bootstrapping steps. First a simulated keyboard (html & js initially) to allow free experimentation, later an open hardware design suitable for makers, 3D printing, etc. The crappyness of commercial keyboards is a bugbear of mine. Keyboards should be MUCH better than they are. And last forever. @ Grant Taylor & Toby Thain >> ???? bold >> ???? italic >> ???? overline >> ???? strike through >> ???? underline >> ???? superscript exclusive or subscript >> ???? uppercase exclusive or lowercase >> ???? opposing case >> ???? normal (none of the above) >This covers only a small fraction of the Latin-centric typographic >palette - much of which has existed for 500 years in print (non-Latin >much older). Computerisation has only impoverished that palette, and >this is how it happens: Checklists instead of research. >Work with typographers when trying to represent typography in a >computer. The late Hermann Zapf was Knuth's close friend. That's the >kind of expertise you need on your team. More generally, an encoding standard needs to allow for ANY kind of present and future characters, fonts and modifiers. But even more critically, it has to allow for such things without reference to 'central standards groups'. Enforced centralism is poison. For instance Unicode, and that vast table of symbols - that still doesn't include decent arrows (and many other needs.) What's required is a way for any bunch of people to be able to define their own character sets, fonts, adornments, etc, create definition files for them, and use those among themselves. Either embedded in documents or used as referenced defaults - both must be possible. It is easy enough to define a base encoding that allows this. And in which legacy coding (ASCII, Unicode, etc) is one of the available defaults. The point with embedding such capabilities in the base coding scheme, and then building the superstructure of computing language and OS on top of that, is to achieve a scheme in which human language and typesetting freedom is available through the entire structure. @ Cameron Kaiser >> Surely a Chinese or Japanese based programming language could be >> developed. >The Tomy Pyuuta has a very limited BASIC variant called G-BASIC which has >Japanese keywords and is programmed with katakana characters (such as "kake" ... Exactly, except it should be possible for any group (eg who speak whatever language) to modify existing computer language to their own human dialect. With compilers and assemblers this is not trivial, but with dictionary-based interpreters it's much easier. The keywords and operators are all just looked up in tables to achieve effects, and what characters or ideograms serve as the keywords are entirely flexible. Then imagine one interpretted scripting language, that serves multiple functions: document layout, user apps and OS scripting. And that scripting language can be phrased in any human language, AND includes full typsetting of itself. @ Liam Proven > There are a wider panoply of options to consider. ... > Try to collapse all these into one and you're doomed. Lots of great references, thanks! As for doomed... well we'll see. I think the trick is to merely provide a mechanism for including extensible classes of 'stuff' in the base coding. Because being rigid about the mechanics of the higher level capabilities really is fatal. Fortunately, 'flexible extensibility' isn't so hard to do. Especially when you have a bunch of disused legacy control codes to work with. At 02:34 PM 28/11/2018 -0700, Jim Manley wrote: >Some computing economics history: > >I'm an engineer and scientist by both education and experience, [snip] >A theoretically "superior" encoding may >not see practical use by a significant number of people because of legacy >inertia that often makes no sense, but is rooted in cultural, sociological, >emotional, and other factors, including economics. Yep. I'm intensely aware of the economics and inertia factors. Points: 1. The ASCII-replacement coding is just a part of a wider project. 2. It's all a private project, for fun. 3. And yet there's a convergence of developments suggesting an opportunity in near future. MS/Intel are bastardizing, backdooring and box-closing the Wintel platform into something so evil even non-technical people are getting sick of it. This will continue, due to political agenda of MS/Intel. Simultaneously the competing Linux world is fragmenting into churn-chaos. (Complex but irreversible reasons.) Apple is... Apple. Becoming a platformm based mostly on virtue signalling, and increasingly as bad as Wintel. 4. If it ever is released, it will be freeware, open hardware and copylefted. DRM specifically banned from the platform. With many quite appealing wow-factors, several of which will be totally killer. It is not politically possible for MS/Intel/Apple to follow this path. [snip] >Logic and reasoning are >simply nowhere near enough to create the conditions necessary for >widespread adoption - sometimes it's just good luck in timing (or, bad >luck, as the case may be). Absolutely. It's mostly about politics and meme-crafting. Ref: Marx, L Ron Hubbard, Mao, various religions, etc. Odd isn't it - so few instances of memetic weavers who used their skills for the benefit of humankind. As opposed to those guys above, who were all arseholes with pretty twisted objectives. Did you know L Ron Hubbard created Scientology to win a drunken bet in a bar? Someone said "I bet you can't create a religion!" And L Ron said "I bet I can!" >ASCII was developed in an age when Teletypes ... Yep. >You can't blame the ASCII developers for lack of foresight when no one in >their right mind back then would have ever predicted we could have upwards >of a trillion bytes of memory in our pockets ... Absolutely. ASCII was a godsend at the time and I take pains to make this clear in the proposal docs. This is a _hindsight_ refactoring. >Someone thinking that they're going to make oodles of money from some >supposedly new-and-improved proprietary encoding "standard" that discards >five-plus decades of legacy intellectual and economic investment, is >pursuing a fool's errand. Ha ha, I don't intend to even try to make any money from this. Other objectives. Though, I'd probably set up a donations channel. Just in case people like it. > Even companies with resources at the level of >Apple, Google, Microsoft, etc., aren't that arrogant, and they've >demonstrated some pretty heavy-duty chutzpah over time. BTW, you won't be >able to patent what apparently amounts to a lookup table, and even if you >copyright it, Patents and copyright are poisons that are crippling intellectual and technological progress. The original concepts were OK, but got over-extended by greed (and still getting worse.) Patents in particular have become a tool for big corporate suppression of any potential competition, while copyright is used to destroy free expression. The entire DRM/copyright legal framework should be nullified. This project will be intentionally copyright and patent excluding. Freeware, published, open source, open hardware, etc. Just a conformance symbol, which certifies (among other things) that _nothing_ in the systems & software is under any kind of DRM restriction. People buy or build such a system, they own it entirely. This is why I can't mention details or coined terminology now. >True standards are open nowadays - the days of proprietary "standards" are Except that by 'open' they usually mean you can pay a lot of money for a copy of the standard doc. That's not what I call 'open.' >a couple of decades behind us - even Microsoft has been publishing the >binary structure of their Office document file formats. The specification >for Word, that includes everything going back to v 1.0, is humongous, and >even they were having fits trying to maintain the total spec, which is >reportedly why they went with XML to create the .docx, .xlsx, .pptx, etc., >formats. That also happened to make it possible to placate governments >(not to mention customers) that are looking for any hint of >anti-competitive behavior, and thus also made it easier for projects such >as OpenOffice and LibreOffice to flourish. > >Typographical bigots, who are more interested in style than content, were >safely fenced off in the back rooms of publishing houses and printing >plants until Apple released the hounds on an unsuspecting public. I'm >actually surprised that the style purists haven't forced Smell-o-Vision >technology on The Rest of Us to ensure that the musty smell of old books is >part of every reading "experience" (I can't stand the current common use of >that word). At least I have the software chops to transform the visual >trash that passes for "style" these days into something pleasing to _my_ >eyes (see what I did there with "severely-flawed" ASCII? Here's how you >can do /italics/ and !bold! BTW.). Oh yes, tell me about it. 'Do it this way' bigots of all kinds. Pick any possible thing that can be done more than one way, and there will be camps of fanatics insisting their one way is the true way and all others are crazy. Finding such artificial dichotomies (or n-way splits) has been a very rich source of inspiration for holistic rethinking. Btw, again I'll emphasize that when I say ASCII is severely flawed, I mean this in the context of what we know now about information coding requirements, and creating extensible systems. It was't 'severely flawed' back when it was created. >Nothing frosts me more than reading text that can't be resized and >auto-reflowed, especially on mobile devices with extremely limited display >real estate. I'm fully able-bodied and I'm perturbed by such bad design, >so, I'm pretty sure that pages that prevent pinch-zooming, and that don't >allow for direct on-display text resizing/auto-reflow, violate the spirit >completely, if not virtually all of the letters, of the Americans with >Disabilities Act (and similar legislation outside the U.S., I imagine). Well, there's more than that one requirement. If one wanted to capture a historical document, the absolute image of the page(s) is a core aspect, and can't be 'reflowed'. But otoh, the text content should be accessible as a searchable and reflowing character stream. A decent coding scheme will support both objectives simultaneously. Btw I'm constantly amazed by how badly tech docs are being 'digitized' even now. Service manuals with fold out schematics, screened tonal multi-colour illustrations etc... just endless awful digital copy fails. Meanwhile the original paper copies get rarer and rarer, because idiots think 'those are all online now, paper copies are obsolete', and throw them out. @ Keelan Lightfoot >from a usability standpoint, control codes are problematic. Either the user needs to memorize them, or software needs to inject them at the appropriate times. You're thinking of 'control codes' as something you type by holding down CTRL and some other key. Yes, these are a pain and I personally hate UI's that depend on memorising lots of them. But strictly speaking 'control codes' are the byte codes 0x00 to 0x1F, in the ASCII table. Most of which are now little used apart from in hardware protocols. How those would be brought into use in an ASCII-replacement and new UI, is another topic. Sadly, part of the area I won't talk about. Just bear in mind that this system includes new keyboard designs, and 'things that have to be memorised' are fine for some people but not for others (including me.) Ha ha, even ctrl-C and ctrl-V for cut and paste are a pain, not because they must be memorised, but because the ergonomics of distorting the fingers to type them, is horrible for such a common action. Stuff like this... Oh, and if you are wondering if I'm imagining some huge keyboard with even more keys, no. Personally I use a short ('10-keyless') keyboard, and don't want to ever have to go back to stupidly big keyboards. >In addition to crusty old computers, I also enjoy the company of three crusty old Linotypes. In fact, that's what got me thinking about this stuff in the first place. Ah, I am intensely jealous! I wish I could find an old but working linotype. And someone to teach me how to use it. Hot lead, yeah! (I used to cast things in lead as a child, have done bronze casting and intend to do more.) I have some exposure to typesetting & printing; enough to know how much I don't know. Some articles on related topics are in-progress, but not yet posted. Anyway, back on topic (classic computing.) Here's an ascii chart with some control codes highlighted. http://everist.org/ASCII/ascii_reuse_legend.png I'm collecting all I can find on past (and present) uses of the control codes. Especially the ones highlighed in orange. Not having a lot of success in finding detailed explanations, beyond very brief summaries in old textbooks. Note that I'm mostly interested in code interpretations in communications protocols. Their use in local file encodings not so much, since those are the domain of legacy application software and wouldn't clash with redefinition of what the codes do, in future applications. And now, back to machining a lock pick for a PDP-8/S front panel cylinder lock. http://everist.org/NobLog/20181104_PDP-8S.htm#locks Guy

6 years

selling rare Intel vintage ceramic gold chips C 4004, 4002, 4003, 8008 collectible

by cpl160＠gmail.com

Selling these on ebay for only $795, low of range $800-$1600 per the vintage intel cpu guide [1], more info in listing, see https://www.ebay.com/itm/223264027242. [1] http://www.cpushack.com/2018/06/10/t...-microchips-2/ <http://www.cpushack.com/2018/06/10/the-collectors-guide-to-vintage-intel-mi…>

6 years

ISO Intertec 5.25" floppy drive jumper settings

by binarydinosaurs＠gmail.com

Hi folks, In my long ongoing quest to image and otherwise copy the hard sectored floppies with my Exidy Sorcerer I?m trying to find other floppy drives I can use with it since I don?t like relying on just one set of drives. I have a Cumana dual drive set that came with my TRS80 Model1 that I thought might be jumperable to 300rpm, indeed I can see drive activity if I try and boot. Does anyone know where I might find the/a manual for the drives? They?re marked as Intertec 5002040 so I?ve been all over Superbrain docs and PDFs on bitsavers but haven?t found anything so far. Cheers! -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest private home computer collection? t: @binarydinosaurs f: facebook.com/binarydinosaurs w: www.binarydinosaurs.co.uk

6 years

SPARCstation 20 with SCSI2SD

by kylevowen＠gmail.com

Firstly, my goal: to run MazeWar on something other than a NeXT. I thought this would be fairly straightforward, starting with getting SunOS 4.1.3 booting with QEMU. Turns out, I've not had much luck. I get different error messages depending on what machine type I'm emulating. I can start booting from the .iso running this command: $ qemu-system-sparc -bios ss5.bin -M SS-5 -m 64M -drive file=sunos413.img,if=scsi,bus=0,unit=3,media=disk -drive file=SunOS_4.1.3_sparc.iso,format=raw,if=scsi,bus=0,unit=6,media=cdrom,readonly=on -boot d and get a near immediate panic: machine type 0x80 in NVRAM panic: No known machine types configured in! Data Access Exception ok Okay, how about trying the default BIOS and SS-20? It definitely gets further, but no dice... Boot: vmunix Size: 843776+2315672+64016 bytes SuperSPARC/SuperCache: PAC ENABLED SunOS Release 4.1.3 (MUNIX) #3: Mon Jul 27 16:47:33 PDT 1992 Copyright (c) 1983-1992, Sun Microsystems, Inc. cpu = SUNW,SPARCstation-20 mod0 = TI,TMS390Z55 (mid = 8) mem = 49020K (0x2fdf000) avail mem = 44707840 Ethernet address = 52:54:0:12:34:56 espdma0 at SBus slot f 0x400000 esp0 at SBus slot f 0x800000 pri 4 (onboard) sd2: non-CCS device found at target 2 lun 0 on esp0 sd2 at esp0 target 2 lun 0 sd2: <QEMU 0 blocks> sd2: Vendor 'QEMU', product 'QEMU', (unknown capacity) sd3: non-CCS device found at target 0 lun 0 on esp0 sd3 at esp0 target 0 lun 0 sd3: corrupt label - wrong magic number sd3: Vendor 'QEMU', product 'QEMU', (unknown capacity) ledma0 at SBus slot f 0x400010 le0 at SBus slot f 0xc00000 pri 6 (onboard) zs0 at obio 0x100000 pri 12 (onboard) zs1 at obio 0x0 pri 12 (onboard) SUNW,fdtwo0 at obio 0x700000 pri 11 (onboard) BAD TRAP: cpu=0 type=29 rp=f00daba4 addr=0 mmu_fsr=0 rw=0 MMU sfsr=0: No Error regs at f00daba4: psr=40400cc7 pc=f00a0968 npc=f00a096c y: 20000 g1: f00c1e78 g2: 40900ce6 g3: fb005ff0 g4: 2c g5: f00db000 g6: 0 g7: 30000000 o0: 1 o1: 8 o2: f00dac00 o3: f0076e50 o4: 0 o5: 0 sp: f00dabf0 ra: f1000000 (unknown): bad trap = 41 rp=0xf00daba4, pc=0xf00a0968, sp=0xf00dabf0, psr=0x40400cc7, context=0x0 g1-g7: f00c1e78, 40900ce6, fb005ff0, 2c, f00db000, 0, 30000000 Begin traceback... sp = f00dabf0 Called from f00c1eb8, fp=f00dac58, args=ff009000 f00dacbc 0 f0314a70 1000 1000 Called from f00a7d34, fp=f00dacc0, args=ff009000 0 ff009000 fb002098 f0314a70 ff009000 Called from f00a7708, fp=f00dad20, args=1080000 d f0102d50 f0102db3 0 2 Called from f00a74e0, fp=f00dad80, args=f0305bd4 f0102d50 fb001000 fb001050 0 0 Called from f00a5028, fp=f00dade0, args=f00fc000 fefe0014 0 0 f0102d50 f0305bd4 Called from f00ac084, fp=f00dae40, args=72 1000 1 1 86 800000 Called from f0015f7c, fp=f00daef8, args=800000 100000 fb000000 2fdd 2000 2 Called from f000539c, fp=f00daf58, args=f00dafb4 f00076c0 10801522 821020ff 200 f00ce600 Called from 403f0c, fp=0, args=4000 3ffd60 1 235598 4000 0 End traceback... panic: trap rebooting... Then I thought, why not use The Machine Emulator to emulate a Sun 3 and play with something even older? I can't get that to build using clang under OS X 10.9. I've changed a few lines of source already to get it further along in the compilation process, but now I'm stuck: In file included from module.c:48:0: module.c: In function 'tme_module_init': module.c:93:3: error: 'lt_preloaded_symbols' undeclared (first use in this function); did you mean 'lt_dlloader_remove'? LTDL_SET_PRELOADED_SYMBOLS(); ^ Okay, now I'm tired of trying to emulate it (actually, I still would like to play with QEMU or TME...), so I pulled a SS-20 off the shelf and threw a SCSI2SD card in it. I didn't have a means of burning a CD, so I used the SCSI2SD to also emulate a CDROM drive at device 6, and unplugged the existing CDROM drive. I can boot off of it just fine, and I get now even further along the process of installation, and am able to format the hard drive. Right when I think things are going well, I get this: esp0: Target 6.0 reverting to async. mode sr0: SCSI transport failed: reason 'data_ovr': giving up m partition number 3 fastread: can't read label on /dev/rsr0:I/O error ERROR while loading miniroot disk: /dev/rsd0b # Any ideas? Thanks, Kyle

6 years

Tektronix 6800 Board Bucket and 4051 Working Together Video

by vintagecomputer＠bettercomputing.net

I'm not sure how many of you who are on this list are on the vcfed.org forum, but just for those who aren't, with the help of Dave and Monty from there, I have recently restored a 4051 I bought a couple years ago to working condition. Last night with their guidance I connected it to a Tektronix development system called the Board Bucket, also a 6800 driven machine that Tek engineers/employees could buy from Tek (I think in parts) that I purchased previously. With the 4051 in terminal mode, we were able to demonstrate that the BASIC in ROM in the Board Bucket can drive graphics on the Tek terminal. This was pretty much clear after I dumped the ROMs and Dave had a close look at them, but it was still very cool to see the two working together nonetheless. I feel very privileged to have both one of the products of Tek's computer development efforts and the development machine used to help create it (and/or others) in my possession. Anyway for those interested, I posted a 4 min video here: https://www.youtube.com/watch?v=SSkHRzx5Bno Brad

6 years

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test-drb December 2018