Re: Aliens film set equipment identification

On 12/01/2017 06:24, ste...@malikoff.com wrote: - Unknown Ops PC Terminal: Richard also suggested that to him, it looks like a monitor placed upside down. He thinks the grid and circle pattern on the "top" is where rubber feet would have been. To me it has a shape that just doesn't look

Re: Unknown 8085 opcodes

Johnny Eriksson wrote: > from another disassembler project: > { 0xC9, 1, popj, 0, "ret" }, > { 0xCD, 3, pushj, 0, "call %a" }, Someone with good taste, I see.

Re: Unknown 8085 opcodes

> I built a disassembler years ago to pick apart captured malware. By > now it handles about a dozen ISAs. While 8080 and 8085 are not on the > list, Z-80 is; adding 8080 would be a relatively simple thing. I've > added that to my to-do list; if someone can point me to 8080/8085 > machine

Re: What's the rarest or most unusual software item do you own?

On 1/11/2017 11:02 PM, Lars Brinkhoff wrote: What about software? BCPL IBM mainframe portability package (original time frame). Common now, not so common back in the day. The kit was used with some efforts to port to minicomputers @ USL Also got some Mathilda manuals from Aarhus

What's the rarest or most unusual software item do you own?

What about software?

Re: What's the rarest or most unusual computer-related item do you own?

Eric Smith wrote: > The only part of a KA that I have is the main console switch and light > panel. The leadperson for the film Swordfish wanted to rent it from me, but > we weren't able to reach an agreement. I have yet to see the film. I think there's only about ten seconds worth of PDP-10

Re: What's the rarest or most unusual computer-related item do you own?

Rich Alderson wrote: > Eric's got a KL. If he had a KA, I would have tracked him down and > beaten him to a pulp to lay hands on it--and we're friends. This is the third time in a few weeks that I've seen people eagerly looking for a KA10. Is someone pulling strings behind the scenes? CIA

Re: Unknown 8085 opcodes

Mouse writes: > I built a disassembler years ago to pick apart captured malware. By > now it handles about a dozen ISAs. While 8080 and 8085 are not on the > list, Z-80 is; adding 8080 would be a relatively simple thing. Isn't 8080 just a subset of Z80? > if someone can point me to 8080/8085

Re: Aliens film set equipment identification

> - Unknown Ops PC Terminal: Richard also suggested that to him, it looks like > a monitor placed upside down. He thinks the grid and circle pattern on the > "top" is where rubber feet would have been. To me it has a shape that just doesn't look like it accomodates a CRT. It seems more like a

Re: Unknown 8085 opcodes

Sorry Chuck It was not you I was talking about. It was the original thinking that a 8085 disassembler would make sense out of the original 8041 code. Maybe I'm confused but I believe the code in question was the 8041. Dwight From: cctalk

Re: What's the rarest or most unusual computer-related item do you own?

On 2017-01-10 17:09, Andy Cloud wrote: Hi Everyone! I thought this would be an interesting question to ask around - What's the rarest or most unusual computer-related item do you own? For me, personally, I have a Altair 8800! Looking forward to hearing your answers _Andy It's not as old

Re: Were C64's used in editing video like the Amigas - also need Amiga keyboard?

The video flyer used external scsi storage for content I believe, kind of a separate computer inside the Amiga? Date: Wed, 11 Jan 2017 21:38:26 -0500 From: Syd Bolton Reply-To: "General Discussion: On-Topic Posts" To: "General Discussion: On-Topic

Re: Unknown 8085 opcodes

On 11/01/17 22:20, Adrian Graham wrote: I've got some good results with the dz80 disassembler on linux, it actually does a decent job of recognising the text and shows it as such: ; db'Telephone Details'; 1799 dwX0401; 17aa 01 04 .. dwX0805

Re: Were C64's used in editing video like the Amigas - also need Amiga keyboard?

No, C64's were too limited (8-bit) to do anything video related. However, video production was actually possible with the Amiga 1000 as you could get the Amiga 1300 Genlock, and the Amiga itself always natively produced composite video real true non-linear editing with the computer itself

Re: Unknown 8085 opcodes

What kind of people are PC people? Are Mac users PC people. I can across a professional python coder ( claimed 6 years of experience ) that didn't realize that ASCII were just bits in a pattern and you could use the computer to treat that pattern as a number. As a number, you could add and

Re: Were C64's used in editing video like the Amigas - also need Amiga [keyboard?]

> No, C64's were too limited (8-bit) to do anything video related. I'm going to be strenuously pedantic: the bittedness of the 6510 isn't why it's a less optimal video candidate, the relatively limited video output (which is the VIC-II, not the CPU) is. 320x200 probably has enough bit detail but

Sol Terminal Color Photo, and PROMs

Hey guys, Does anyone know if any color photos exist of the Sol 'Intelligent Terminal' that appeared on the cover of Popular Electronics, July 1976? I just discovered that that Keytronics keyboard I bought on ebay (the one parted out from a mystery 8080 terminal of some sort) is the same one

Re: Unknown 8085 opcodes

On 01/11/2017 08:50 PM, dwight wrote: > Even so, he said the code was > > for the 8741. It is not 8085! > In the interest of minimizing clutter, I didn't quote all of Mouse's message: -- I built a disassembler years ago to pick

Re: AB 7320 was: Re: What's the rarest or most unusual computer-related item do you own?

On 01/11/2017 11:11 PM, Bob Rosenbloom wrote: On 1/11/2017 8:45 PM, Jon Elson wrote: I also have an Allen-Bradley 7320, a CNC machine tool control. The heart of it is a 7300 "industrial processor" 16-bit minicomputer. I used it for a year or so to run a retrofitted Bridgeport milling

Aliens film set equipment identification

Can you ID the following equipment? Melissa, a digital artist who has to reconstruct the set of the movie Aliens (a 1986 James Cameron sequel to the seminal 1979 Alien from Scott Ridley, has asked me to identify the large computer props that were used in the original set. She identified an Alto

AB 7320 was: Re: What's the rarest or most unusual computer-related item do you own?

On 1/11/2017 8:45 PM, Jon Elson wrote: I also have an Allen-Bradley 7320, a CNC machine tool control. The heart of it is a 7300 "industrial processor" 16-bit minicomputer. I used it for a year or so to run a retrofitted Bridgeport milling machine, but got tired of it breaking down, which it

Re: Unknown 8085 opcodes

Even so, he said the code was for the 8741. It is not 8085! Dwight From: cctalk on behalf of Chuck Guzis Sent: Wednesday, January 11, 2017 7:12:43 PM To: General Discussion: On-Topic and Off-Topic Posts

Re: Were C64's used in editing video like the Amigas - also need Amiga keyboard?

On 01/11/2017 04:00 PM, Cameron Kaiser wrote: I never saw deck controllers, though it wouldn't have been difficult to homebrew one. When we used a C64 to do some titling for a school project, we just directly recorded the output to the VCR. I do believe there were some genlock products around

Re: Unknown 8085 opcodes

On Wed, Jan 11, 2017 at 8:33 PM, Jon Elson wrote: > On 01/11/2017 11:16 AM, Hayden Kroepfl wrote: >> >> Looking at the values it almost looks like it's ASCII text and >> not actual code data. > > > BINGO!! >> >> On Wed, Jan 11, 2017 at 10:10 AM, Adrian Graham >>

Re: What's the rarest or most unusual computer-related item do you own?

I also have an Allen-Bradley 7320, a CNC machine tool control. The heart of it is a 7300 "industrial processor" 16-bit minicomputer. I used it for a year or so to run a retrofitted Bridgeport milling machine, but got tired of it breaking down, which it did fairly often. Once I got EMC from

Re: What's the rarest or most unusual computer-related item do you own?

On 01/11/2017 11:23 AM, Erik Baigar wrote: So your core memory is indeed a BIAX one? Have never seen one in a real system and that would really make the machine a very very unique combination. No, this particular one appears to be plain core, so I guess the one I have was not in a

Re: Unknown 8085 opcodes

On 01/11/2017 11:16 AM, Hayden Kroepfl wrote: Looking at the values it almost looks like it's ASCII text and not actual code data. BINGO!! On Wed, Jan 11, 2017 at 10:10 AM, Adrian Graham wrote: Example 8085 code fragment: 3440 1792 09 DAD B

Re: What's the rarest or most unusual computer-related item do you own?

On Wed, 11 Jan 2017 17:34:51 -0800 Al Kossow wrote: > On 1/11/17 4:45 PM, Brad H wrote: > > I wasn't even aware of the LCM until this thread > > You mean "Living Computer: Museum + Labs" ? > http://www.livingcomputers.org/ > > They just changed their name. Thanks -

DEC LCG cable...BC10K?

I found what I remember to be a DEC10 memory cable . It looks like a BC10K in the 1980 cables handbook. It looks to be a 5 footer or so. Any interest? Please contact me off list. Thanks, Paul

Re: Unknown 8085 opcodes

On 01/11/2017 06:45 PM, Mouse wrote: > In case anyone is interested, I export it via git. The thing to > clone is git://git.rodents-montreal.org/Mouse/disas, though it hasn't > had much testing off my systems and thus probably contains > localisms. Does your disassembler do flow analysis? At

Re: Unknown 8085 opcodes

> Good list there, the onlinedebugger looked the most promising but it > doesn't do 8080/8085 either. I built a disassembler years ago to pick apart captured malware. By now it handles about a dozen ISAs. While 8080 and 8085 are not on the list, Z-80 is; adding 8080 would be a relatively simple

Re: What's the rarest or most unusual computer-related item do you own?

On Jan 11, 2017 9:00 PM, "Paul Koning" wrote: > > On Tue, Jan 10, 2017 at 4:09 PM, Andy Cloud wrote: > > > I thought this would be an interesting question to ask around - What's the > > rarest or most unusual computer-related item do you own? > > It's

Re: What's the rarest or most unusual computer-related item do you own?

On Tue, Jan 10, 2017 at 4:09 PM, Andy Cloud wrote: > I thought this would be an interesting question to ask around - What's the > rarest or most unusual computer-related item do you own? It's interesting to see the wide variety of answers. Mine is: a working PLATO terminal

Re: What's the rarest or most unusual computer-related item do you own?

sigh.. even proofreading I got it wrong Living Computers: Museum + Labs On 1/11/17 5:34 PM, Al Kossow wrote: > > > On 1/11/17 4:45 PM, Brad H wrote: >> I wasn't even aware of the LCM until this thread > > You mean "Living Computer: Museum + Labs" ? > http://www.livingcomputers.org/ > > They

Re: What's the rarest or most unusual computer-related item do you own?

On 1/11/17 4:45 PM, Brad H wrote: > I wasn't even aware of the LCM until this thread You mean "Living Computer: Museum + Labs" ? http://www.livingcomputers.org/ They just changed their name.

Re: What's the rarest or most unusual computer-related item do you own?

Do remember, museums are not wherehouses for lots of duplicate machines. The tend to keep only one or two of anything at most. Give them a list of what you have and they will tell you what items they would be interested in. Dwight From: cctalk

RE: What's the rarest or most unusual computer-related item do you own?

I wasn't even aware of the LCM until this thread.. thanks guys! Always wanted to go to CHM but it's in California, a long way from here. LCM is much closer and I like the concept better given that they operate stuff. I'm thinking eventually my collection will go to a museum somewhere, LCM

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

I haven't heard of that in quite while.  Though I never owned one personally, agood friend bought one (and waited and waited...)  Finally received the wirewrapversion but it never lived up to it's promise.  I google for it and search eBayfrom time to time hoping to see one, but the number

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

> From: William Maddox > ECD Micromind That would be the one. Thanks! (A friend of mine worked there, as a tech, but it was aeons ago, and I just could not remember the name!) According to this blog: http://ecdmicromind.blogspot.com/2006_09_01_archive.html there is actually one

Re: What's the rarest or most unusual computer-related item do you own?

> On Tue, Jan 10, 2017 at 4:09 PM, Andy Cloud wrote: > >> I thought this would be an interesting question to ask around - What's the >> rarest or most unusual computer-related item do you own? >> The rarest is probably my Commodore 65 which in the last couple of years has

Re: What's the rarest or most unusual computer-related item do you own?

My most obscure (though far from rare, as no one has ever heard of them) is a Gnat System 10: (a picture at) https://archive.org/details/bitsavers_gnatComputhure1979_7760927 Z-80 (4MHz if I recall on mine) with SCSI (Perhaps SASI at the time) interface, lots of parallel and serial connectors

RE: What's the rarest or most unusual computer-related item do you own?

On Jan 11, 2017 2:01 PM, "Rich Alderson" wrote: > Eric's got a KL. If he had a KA, I would have tracked him down and beaten > him to a pulp to lay hands on it--and we're friends. And I would even endorse such a course of action. If I had a KA10 and wasn't running it

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

On 01/11/2017 01:14 PM, William Maddox wrote: Does this ring any bells for anyone? I haven't heard of that in quite while. Though I never owned one personally, a good friend bought one (and waited and waited...) Finally received the wirewrap version but it never lived up to it's promise.

Re: What's the rarest or most unusual computer-related item do you own?

On Jan 11, 2017 6:40 AM, "Noel Chiappa" wrote: > Really? Which model processor; KA, KI, KL? One KL (2065), two KS.

Re: Were C64's used in editing video like the Amigas - also need Amiga keyboard?

> > Were C64's used in editing video like the Amigas - also need Amiga > > keyboard? > > I am pretty sure people recorded graphical output from early Micros as > some sorta of poor mans character generator/title generator. Probalbly > couldn't overlay without a very expensive genlock though.

Re: Were C64's used in editing video like the Amigas - also need Amiga keyboard?

Were C64's used in editing video like the Amigas - also need Amiga keyboard? I am pretty sure people recorded graphical output from early Micros as some sorta of poor mans character generator/title generator. Probalbly couldn't overlay without a very expensive genlock though. Not sure if

Re: Unknown 8085 opcodes

On 01/11/2017 01:26 PM, allison wrote: > PC people would not think to do that as its rare for them to see 7Bit > ASCII and the tools commonly used might not either. I think that you sell "PC People" a bit short. The free version of IDA Pro does recognize stuff like that, the last time I

Re: Unknown 8085 opcodes

On 1/11/17 12:19 PM, Charles Anthony wrote: On Wed, Jan 11, 2017 at 9:10 AM, Adrian Graham wrote: Hi folks, Any 8085 assembler geeks in the house? A uProcessor geek, but not 8085 :( However, Wikipedia mentions: " Undocumented instructions A number of

Re: Boot Loader for 3P+S on IMSAI

Most of these BASICs required a delay on a return. To make it more fun, it got longer the larger the program. Dwight From: cctech on behalf of Win Heagy Sent: Wednesday, January 11, 2017 10:28:06 AM To:

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

Video Brain was from Fairchild. Dwight From: cctalk on behalf of William Maddox Sent: Wednesday, January 11, 2017 1:14:27 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Obscure

Re: What's the rarest or most unusual computer-related item do you own?

I guess for me, the value is less in bits of hardware than it is in ephemera. My original S/360 green folding pocket card, for instance, or any number of handwritten engineering design documents. Lots of old manuals. Probably not rare, but significant to me. --Chuck

Re: What's the rarest or most unusual computer-related item do you own?

In a message dated 1/11/2017 2:01:05 P.M. US Mountain Standard Time, ri...@livingcomputers.org writes: From: Noel Chiappa Sent: Wednesday, January 11, 2017 5:40 AM >> From: Eric Smith >> I have a computer of the type that Gates and Allen used for that early >> development. :-) >> I don't

Re: Unknown 8085 opcodes

On 11/01/2017 19:24, "Al Kossow" wrote: > > since it's been brought up, and your forgot to mention IDA is a commercial > product > > http://reverseengineering.stackexchange.com/questions/1817/is-there-any-disass > embler-to-rival-ida-pro > > > On 1/11/17 11:08 AM,

Were C64's used in editing video like the Amigas - also need Amiga keyboard?

Were C64's used in editing video like the Amigas - also need Amiga keyboard? Were Commodore 64's used in editing video like the Amigas were to any extent? Looking to figure if there is an overlap area in yet another area of our displays we can do betweencomputing and

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

> Does this ring any bells for anyone? ECD Micromind --Bill

RE: What's the rarest or most unusual computer-related item do you own?

From: Noel Chiappa Sent: Wednesday, January 11, 2017 5:40 AM >> From: Eric Smith >> I have a computer of the type that Gates and Allen used for that early >> development. :-) >> I don't have it running, though. > Really? Which model processor; KA, KI, KL? Eric's got a KL. If he had a KA, I

Re: Boot Loader for 3P+S on IMSAI

Yes, I was able to run the echo characters test from the solivant site as well as a couple other small upload tests, so I'm thinking it's a delay issue or a configuration problem with the 3P+S and MITS BASIC. Digging back into this on my IMSAI, I'm now remembering the peculiarities of loading MITS

re duplicates Re: pdp-11 assembly standards

On 2017-Jan-11, at 12:04 AM, Brent Hilpert wrote: >> I've never heard of that '' bizzaro-stuff - where did you find that? > > This one: > http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt > > Reading more closely, the encoding has some relation back to BBC BASIC. > I was beginning to

Re: What's the rarest or most unusual computer-related item do you own?

> On Jan 11, 2017, at 1:00 PM, cctech-requ...@classiccmp.org wrote: > > Message: 8 > Date: Tue, 10 Jan 2017 22:09:52 + > From: Andy Cloud > > To: "cctalk@classiccmp.org " >

Re: Unknown 8085 opcodes

Hi Adrian It looks like text, not code. 54 T 65 e 6c l 65 e 70 p 68 h 6f o 6e n 65 e 20 space Henrik Adrian Graham skrev 2017-01-11 18:10: Hi folks, Any 8085 assembler geeks in the house? Official Intel docs don't seem to be helping with this one, I have 8085 and D8741A peripheral

Re: Unknown 8085 opcodes

On 11/01/2017 19:24, "Al Kossow" wrote: > > since it's been brought up, and your forgot to mention IDA is a commercial > product > > http://reverseengineering.stackexchange.com/questions/1817/is-there-any-disass > embler-to-rival-ida-pro Good list there, the onlinedebugger

Re: Fwd: Stinky screwdrivers

sön 2017-01-08 klockan 21:17 -0800 skrev Chuck Guzis: > On 01/08/2017 08:16 PM, Al Kossow wrote: > > > > I sent this out to some friends at the end of December > > I've got a few large (not the torque-handle thing) from the late 60's > Xcelite nutdrivers. They don't smell and they're in fine

Re: Unknown 8085 opcodes

On 01/11/2017 09:34 AM, Fred Cisin wrote: > Looks more like data, than code. Indeed--the giveaway for x80 hackers is the string of seemingly nonsensical register moves--although I've seen "trick" code that does employ them to actually execute someone's name... --Chuck

Re: Unknown 8085 opcodes

On 11/01/2017 19:08, "shad" wrote: > Hello Adrian, > not sure if 8085 is supported, but try to analyze your dump with IDA > Disassembler. > It's really amazing in analyzing the code, and reconstruct automatically, > or with small effort, a readable trace of functions

Re: Unknown 8085 opcodes

On 1/11/2017 10:48 AM, dwight wrote: My disassemblers always make a list and count of addresses accessed by any non-indirect reference. If I see a blank line in the code, without any references, I get suspicious. How can the code execute this location if it is never referenced?? I can then

Re: Unknown 8085 opcodes

Hello Adrian, not sure if 8085 is supported, but try to analyze your dump with IDA Disassembler. It's really amazing in analyzing the code, and reconstruct automatically, or with small effort, a readable trace of functions jumps, strings, symbols, etc Andrea

Re: Unknown 8085 opcodes

On 11/01/2017 17:23, "Tony Duell" wrote: >> 3463 17AD 08 UNRECOGNIZED >> 3464 17AE 17 RAL >> 3465 17AF 53 MOV D,E >> 3466 17B0 65 MOV H,L >> 3467 17B1 6C MOV L,H >> 3468 17B2

Re: Unknown 8085 opcodes

I always go through the code and put a extra return after each unconditional jump or return. My disassemblers always make a list and count of addresses accessed by any non-indirect reference. If I see a blank line in the code, without any references, I get suspicious. How can the code execute

Re: Stripping an RA80

On Sat, Jan 7, 2017 at 8:22 PM, Tony Duell wrote: > I've just re-read the printsets... > > The microprocesor boards in the R80 and RA80 printsets are different. They > have different layouts. But the circuitry looks at first glance to be much the > same. Whether this is

Re: Unknown 8085 opcodes

On 11/01/2017 17:49, "Fred Cisin" wrote: > .COM V .EXE file extension) > >> I'll have a closer look at DASMx's parameters when I get home, that's the >> freeware one but it seems to make a better job of it than the commercial >> version, though both the D8741A and ROM dumps

Re: Unknown 8085 opcodes

There is a fairly steep learning curve, but you may want to consider getting a MAME simulation of the device running. There are some pretty powerful tools in the debugger for analyzing things like I/O port references etc. and it can deal with debugging in environments where multiple

Re: Unknown 8085 opcodes

On Wed, Jan 11, 2017 at 6:01 PM, Fred Cisin wrote: > Quite realistic would be for a disassembler that couldn't recognize an > opcode to display it as > DB 1A ; Esc > DB 65 ; 'e' > DB 09 I once used a disassembler (I can't remember for what CPU) that would put a comment on

Re: Unknown 8085 opcodes

Quite realistic would be for a disassembler that couldn't recognize an opcode to display it as DB 1A ; Esc DB 65 ; 'e' DB 09 Code immediately following an unconditional JMP is likely to be data, but could just as easily be the destination of some other JMP, so a disassemble can't make

Re: Unknown 8085 opcodes

On Wed, 11 Jan 2017, Adrian Graham wrote: Well, this is ROM dumps of a telephone system so that would make sense for some of it, but surely a disassembler should also recognise that it's ASCII string data and treat it accordingly? I can imagine a freeware disassembler maybe making that mistake

Re: Unknown 8085 opcodes

Well unless the code is running a disassembler has no real clue, because as you can see ASCII corresponds mostly to completely valid instructions, mainly the MOV reg,reg instructions. Depending on how the code's written it could be basically impossible for a disassembler to tell. For example you

Re: What's the rarest or most unusual computer-related item do you own?

On Wed, 11 Jan 2017, Jon Elson wrote: I should take some pics. I have a set of EMM core units in a matching 1/2 Indeed, this would be very nice. ATR box that I'm pretty sure went with it. Apparently on mission critical applications, they used BiAx which was non-destructive readout.

Re: What's the rarest or most unusual computer-related item do you own?

Hi Jon, thanks for your email and the positive words... On Wed, 11 Jan 2017, Jon Elson wrote: On 01/11/2017 07:03 AM, Erik Baigar wrote: Hi together! Really an impressive amount of replies and quite cool equipment which gets preserver all over the world! Really great! From my side I

Re: Unknown 8085 opcodes

Looks more like data, than code. Telephone Details.Select On Wed, 11 Jan 2017, Adrian Graham wrote: By the same reasoning 0xD9 could be XRL A,R1 (opcode 11011xxx) and 0xDD could be XRL A,R5 but can't match the others. Also the surrounding code doesn't mention those registers.

Re: What's the rarest or most unusual computer-related item do you own?

On Tue, Jan 10, 2017 at 10:09 PM, Andy Cloud wrote: > Hi Everyone! > > I thought this would be an interesting question to ask around - What's the > rarest or most unusual computer-related item do you own? > > For me, personally, I have a Altair 8800! > > Looking forward to

Re: Unknown 8085 opcodes

Hi all, Well, this is ROM dumps of a telephone system so that would make sense for some of it, but surely a disassembler should also recognise that it's ASCII string data and treat it accordingly? I can imagine a freeware disassembler maybe making that mistake but the second one is commercial.

Re: Unknown 8085 opcodes

On Wed, Jan 11, 2017 at 5:10 PM, Adrian Graham wrote: > Hi folks, > > Any 8085 assembler geeks in the house? > > Official Intel docs don't seem to be helping with this one, I have 8085 and > D8741A peripheral controller dumps both containing several opcodes that two >

Re: Unknown 8085 opcodes

Sorry for the double reply. It's definitely ASCII data and not code. There's also seems to be some other constant data in the middle, but translating the byte values as ASCII gives: "Telephone Details [few odd bytes]Select " Where [few odd bytes] is 01 04 05 08 which is presumable some other

Re: Unknown 8085 opcodes

On Wed, Jan 11, 2017 at 9:10 AM, Adrian Graham wrote: > Hi folks, > > Any 8085 assembler geeks in the house? > A uProcessor geek, but not 8085 :( However, Wikipedia mentions: " Undocumented instructions A number of undocumented instructions and flags were

Re: Unknown 8085 opcodes

Another possibility could be self-modifying mode, something somewhere else could be writing over this code once it's running. Though that would be assuming it's in RAM. Though the code around these instructions seems confusing. Looking at the values it almost looks like it's ASCII text and not

Unknown 8085 opcodes

Hi folks, Any 8085 assembler geeks in the house? Official Intel docs don't seem to be helping with this one, I have 8085 and D8741A peripheral controller dumps both containing several opcodes that two disassemblers aren't recognising and any docs I've been looking through for either 8085

Re: What's the rarest or most unusual computer-related item do you own?

On 1/10/2017 5:29 PM, dwight wrote: I have Nicolet 1080. It is a 20 bit computer and has 12Kx20 core memory. To my knowledge, there are only 5 of these remaining in existence. Only 375 were said to have been made. Mine is mostly working but the last time I ran it, it had disk problems. I

Re: What's the rarest or most unusual computer-related item do you own?

On Tue, Jan 10, 2017 at 6:44 PM, Jerry Kemp wrote: > Wow, that must have taken a lot of will power to give that up. If I had it, > I'm not sure I could have done that. It was a bit of a challenge :) It's probably the best example of such a system still in existence, though I

Re: pdp-11 assembly standards

> From: Brent Hilpert > This one: > ... > Reading more closely, the encoding has some relation back to BBC BASIC. Given this (from the documentation): Assembler directives #include Includes the specified file. #ifndef Continue

Re: Obscure MIT-spinoff computer (Was: What's the rarest or most unusual computer-related item do you own?)

> From: Brad H > 4) Videobrain Family Computer So this tickled a question I'd been meaning to ask. Circa 1975, there was an MIT spinoff which designed and built a 'personal computer' (that's effectively what it was, although it wasn't called that). The company had gotten their start

Re: What's the rarest or most unusual computer-related item do you own?

On Tue, 10 Jan 2017, Andy Cloud wrote: > I thought this would be an interesting question to ask around - What's the > rarest or most unusual computer-related item do you own? I have a (non functioning) Tandy sixteen channel 300 baud Mux for their Videotex system. Don't have the software to

Re: What's the rarest or most unusual computer-related item do you own?

> From: Eric Smith > I have a computer of the type that Gates and Allen used for that early > development. :-) > I don't have it running, though. Really? Which model processor; KA, KI, KL? Noel PS: Apparently Gates and Allen at one point rented time on a commercial

Re: What's the rarest or most unusual computer-related item do you own?

Hi together! Really an impressive amount of replies and quite cool equipment which gets preserver all over the world! Really great! From my side I have various MIL-SPEC gear. (1) First of all an intertial navigation system Ferranti FIN1010 from the early 1970ties containing an archaic

Re: What's the rarest or most unusual computer-related item do you own?

Hi Jon, thanks for your mail - the Alert looks interesting (I also collect such vintage Ex-MIL gear). I have a Honeywell Alert. It is a 24-bit aircraft computer that was originally designed for the X-15 project. It was the 2nd "mass-produced" computer in the US to use ICs. The first was

Re: pdp-11 assembly standards

On 11/01/2017 08:02, Brent Hilpert wrote: I've never heard of that '' bizzaro-stuff - where did you find that? This one: http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt Reading more closely, the encoding has some relation back to BBC BASIC. Yes, that syntax (&, , %) has nothing

Re: pdp-11 assembly standards

> I've never heard of that '' bizzaro-stuff - where did you find that? This one: http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt Reading more closely, the encoding has some relation back to BBC BASIC. I was beginning to wonder if it was some html character-encoding screwup.

Re: What's the rarest or most unusual computer-related item do you own?

On 01/10/2017 09:50 PM, allison wrote: > On 01/10/2017 05:09 PM, Andy Cloud wrote: >> Hi Everyone! >> >> I thought this would be an interesting question to ask around - What's the >> rarest or most unusual computer-related item do you own? >> >> For me, personally, I have a Altair 8800! >> >>

Re: pdp-11 assembly standards

> I've never heard of that '' bizzaro-stuff - where did you find that? This one: http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt Reading more closely, the encoding has some relation back to BBC BASIC. I was beginning to wonder if it was some html character-encoding screwup.

Re: pdp-11 assembly standards

> I've never heard of that '' bizzaro-stuff - where did you find that? This one: http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt Reading more closely, the encoding has some relation back to BBC BASIC. I was beginning to wonder if it was some html character-encoding screwup.

Re: pdp-11 assembly standards

On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote: >> From: Brent Hilpert > One assembler doc uses a prefix of "" >> >> So the answer is, by modern expectations the old standard would be >> ambiguous or misleading. > > Well, the ideas of 'assembler' and 'standard' don't really go together in my

Re: pdp-11 assembly standards

On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote: >> From: Brent Hilpert > One assembler doc uses a prefix of "" >> >> So the answer is, by modern expectations the old standard would be >> ambiguous or misleading. > > Well, the ideas of 'assembler' and 'standard' don't really go together in my

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