Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
Without the TMP on the Nicolet MEMA ARGONE ANDA ARGTWO LASH 1 ANGA A+MA ARGONE A+MA ARGTWO ( or A+MM ARGTWO to save in ARGTWO ) The link bit isn't used by LASH or adds on the Nicolet. It is only the carry out of an add. It is a little more clumsy to use as a carry. It can only be used as a condition of a skip or execute. From: cctalk on behalf of Don North Sent: Wednesday, December 23, 2015 11:21 PM To: cctalk@classiccmp.org Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? On 12/23/2015 10:50 PM, Don North wrote: > On 12/23/2015 7:14 PM, Christian Gauger-Cosgrove wrote: >> On 23 December 2015 at 13:44, CLASystems wrote: >>> Ironically, the shortest and fastest seems to be avoidance of the MQ >>> altogether [thus making it work on ANY model]. >>> >>> TAD ARGONE >>> AND ARGTWO >>> CLL RAL >>> CIA >>> TAD ARGONE >>> DCA ARGTWO >>> >>> This works because .XOR. is addition ignoring the carry bits. So, knowing >>> they will happen, just allow them at first, then remove them. >>> >> Hmm, I just tried that in SIMH, and that doesn't XOR at all. > I think there was just a bit of brain fade in the original listing. From > DEC-08-FFAA-D PDP-8 Math Library circa 1968 > the XOR routine is as follows, transcribed to SIMH: > > sim> de 76 1234 > sim> de 77 4321 > sim> ie -m 100-107 > 100:CLA CLL > 101:TAD 76 > 102:AND 77 > 103:CIA > 104:CLL RAL > 105:TAD 76 > 106:TAD 77 > 107:HLT > sim> go 100 > > HALT instruction, PC: 00110 (AND 0) > sim> ex ac > AC: 5115 > > Which produces the correct result in the AC. Locations 103/104 were swapped in > order, and location 106 was left out. > And for completeness location 100 was added to initially clear the AC/Link. > > Don > FYI here is a link to find the document: http://manx.classiccmp.org/details.php/1,3191 I can't find it under dec/pdp8 on bitsavers, maybe I'm just not seeing it. Don
Re: dumping Western Digital Microms (PDP-11, WD16, Pascal Microengine)
On Mon, Dec 21, 2015 at 2:26 AM, Eric Smith wrote: > I built an apparatus on a breadboard to dump the contents of [Western Digital] > Microms, [from the LSI-11, WD16, and WD9000 Pascal Microengine chipsets] I managed to get the state analysis data files exported as CSV and compressed to fit on a floppy, so I finally got them to my PC. Since the dumping apparatus cycles through the 2K address range continuously, and I used the full 1M sample buffer of the acquistion card, I have over 500 copies of each location. My Python script reported that five of the nine Microms I read had inconsistent read results for many addresses. Usually each address with problems only reported two or three different contents. Sometimes the (wrong) contents were 0, or were the value of the previous word (as if the Microm didn't accept the most recent address). I changed from a 2 MHz symmetric four-phase clock to a 1 MHz asymmetric, giving more time to all phases but particularly to phase 1 and 2, and to the phase-1-to-2 and phase-2-to-3 delays, but it didn't help. With the logic analyzer's timing analysis, I discovered that there were four to eight nanosecond glitches on the phase 1 clock while phase 2 is active. Even more surprising, the phase 1 glitch was present on the CMOS phase 1 clock from the PIC. When the glitch occurs, the microinstruction bus value changes, even though at that time the 74HCT245s are actively driving it from my counter. I don't think the MICROM has strong enough buffers to overdrive the 74HCT245. After a lot of head scratching and consulting with a friend, I concluded that it is probably due to ground bounce when the 74HCT245s are enabled. The two together are driving 11 lines with about 50 pF load on each line, so that could require quite a transient on the supply and ground to the 74HCT245s. I beefed up the supply and ground wiring to the 74HCT245s, added more 0.1uF bypass capacitors closer to the relevant pins, and in addition to the four 10uF aluminum electrolytic bulk bypass capacitors I had previously, added about ten 10uF tantalum capacitors. I was pleasantly surprised that after doing all that, when I read all nine Microms again, they all read consistently. The four that read consistently before do match the new dumps. Now I think I've got good data from all nine parts. In the future it would be nice to dump the KEV11-A (LSI-11 EIS/FIS) Microm, the KEV11-C (LSI-11 CIS or DIS) Microms, and the Alpha Micro AM100 (WD16) Microms, but I don't presently have any of those. I'm working on a microcode disassembler in Python, but it's not ready yet. There is still the problem that we need to optically extract the PLA contents from the control chips, since that is different between the LSI-11, Pascal Microengine, and AM100 (WD16). Without that, it won't be possible to fully understand the microcode control flow, because those PLAs can cause changes in flow that aren't represented by jump or return instructions in the microcode ROMs. Eric
HP 16702A logic analyzer failed Ethernet (was Re: dumping Western Digital Microms)
I wrote about my HP 16702A not working on Ethernet any more. On Mon, Dec 21, 2015 at 8:08 AM, Glen Slick wrote: > Assuming you are using 10BT for the network connection, do > you have the terminator cap installed on the 10B2 BNC jack? I think > some things don't work right with the 16700A/16702A network without > that terminator cap installed. I tried it. Didn't work. I also tried connecting the 10base2 to a 10 Mbps hub, and another port to my "real" network, and that still didn't work. As HP-UX boots, it says: auto_parms >> Network was disabled by boot scripts on previous oot. Re-activating the network. 8/16/6 0 UP lan0 DOWN 4 ETHER Yes 52 auto_parms >> /sbin/auto_parms, checking network for DHCP server (see /etc/auto_parms.log) Then in the progress list, it shows: Configure LAN interfaces [FAIL] * Check LAN Status .. [N/A ] [...] Configure HP Ethernet interfaces . [ OK ] Configure HP 100BT interfaces [N/A ] Configure LAN interfaces . [ OK ] Then once the logic analyzer application is up, it shows an error log window, which says There was a DHCP error . Network was disabled. But if I go to network settings, it says: Network hardware not usable - Is the network connected? And all of the radio buttons (e.g., to select "standard" configuration instead of DHCP) are greyed out and I can't configure it. I think the Ethernet ports on this beast are dead. :-( I'm not sure whether it's the CPU board or the I/O board that is dead, but Keysight, or whoever they are this week, wants more money for either of those boards than eBay pricing for a used 16700A or 16702A.
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
On 12/23/2015 10:50 PM, Don North wrote: On 12/23/2015 7:14 PM, Christian Gauger-Cosgrove wrote: On 23 December 2015 at 13:44, CLASystems wrote: Ironically, the shortest and fastest seems to be avoidance of the MQ altogether [thus making it work on ANY model]. TAD ARGONE AND ARGTWO CLL RAL CIA TAD ARGONE DCA ARGTWO This works because .XOR. is addition ignoring the carry bits. So, knowing they will happen, just allow them at first, then remove them. Hmm, I just tried that in SIMH, and that doesn't XOR at all. I think there was just a bit of brain fade in the original listing. From DEC-08-FFAA-D PDP-8 Math Library circa 1968 the XOR routine is as follows, transcribed to SIMH: sim> de 76 1234 sim> de 77 4321 sim> ie -m 100-107 100:CLA CLL 101:TAD 76 102:AND 77 103:CIA 104:CLL RAL 105:TAD 76 106:TAD 77 107:HLT sim> go 100 HALT instruction, PC: 00110 (AND 0) sim> ex ac AC: 5115 Which produces the correct result in the AC. Locations 103/104 were swapped in order, and location 106 was left out. And for completeness location 100 was added to initially clear the AC/Link. Don FYI here is a link to find the document: http://manx.classiccmp.org/details.php/1,3191 I can't find it under dec/pdp8 on bitsavers, maybe I'm just not seeing it. Don
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
oops blew it. MEMA ARG0 A+MA ARG1 ACCM TMP MEMA ARG0 AND ARG1 A+MA ARG1 ANGA A+MAM TMP ( both Acc and TMP have XOR of ARG0 and ARG1 I needed three locations Dwight From: cctalk on behalf of dwight Sent: Wednesday, December 23, 2015 11:02 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? Ok, I think I get it The acc is one value. Both arg1 and agr0 are init to the second value ( start the same ) I'm not sure how to save a value to the acc on a pdp-8. I know how on my Nicolet 1080 that has a similar ALU. On my Nicolet: MEMA ARG0 A+MM ARG0 ANDAM ARG1 A+MA ARG1 ANGA A+MAM ARG0 ( acc and ARG0 have the xor of the original ARG0 and ARG1 ) I suspect it is similar on a pdp-8 as they have similar ALUs Dwight From: cctalk on behalf of dwight Sent: Wednesday, December 23, 2015 10:38 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? I'm not sure how to code it on the machine but I know how to do it. Take A AND B = C 2* C = D ( ignore carry ) negate D ( complement and add 1 ) A + B = E ( this could have been done first ) E + D = A XOR B I think it needs 3 variables? It works because the carries are the result of the AND of the times 2 ( his RAL ) negating and subtracting is what he want to do, leaving the XOR. Dwight From: cctalk on behalf of Christian Gauger-Cosgrove Sent: Wednesday, December 23, 2015 7:14 PM To: clasyst...@gmail.com; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? On 23 December 2015 at 13:44, CLASystems wrote: > Ironically, the shortest and fastest seems to be avoidance of the MQ > altogether [thus making it work on ANY model]. > > TAD ARGONE > AND ARGTWO > CLL RAL > CIA > TAD ARGONE > DCA ARGTWO > > This works because .XOR. is addition ignoring the carry bits. So, knowing > they will happen, just allow them at first, then remove them. > Hmm, I just tried that in SIMH, and that doesn't XOR at all. I haven't a clue what it does. What I have entered: sim> ie -m 100-105 100:TAD 76 101:AND 77 102:CLL RAL 103:CIA 104:TAD 76 105:DCA 77 Locations 076 and 077 being ARGONE and ARGTWO respectively, at the start: sim> ie 076-077 76: 1234 77: 4321 After running the above code sample: sim> ie 076-077 76: 1234 77: 0574 If we "flip" ARGONE and ARGTWO's values (to 4321 and 1234 respectively): sim> ie 076-077 76: 4321 77: 3661 Neither of those is the expected 5115 of an XOR operation. Am I missing something blindingly obvious? Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.
Re: dumping Western Digital Microms (PDP-11, WD16, Pascal Microengine)
On Mon, Dec 21, 2015 at 1:18 PM, Noel Chiappa wrote: > In part, along with the bad diagram, I was thrown by a combo of the fact that > i) the DEC part numbers for the control chip started with 23- (which seems to > be a ROM part indicator), The 23- prefix was for all programmable ICs, whether mask-programmable or field-programmable, not just ROMs/PROMs/EPROMs. The control chip uses mask-programmed PLAs for macroinstruction decode.
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
Ok, I think I get it The acc is one value. Both arg1 and agr0 are init to the second value ( start the same ) I'm not sure how to save a value to the acc on a pdp-8. I know how on my Nicolet 1080 that has a similar ALU. On my Nicolet: MEMA ARG0 A+MM ARG0 ANDAM ARG1 A+MA ARG1 ANGA A+MAM ARG0 ( acc and ARG0 have the xor of the original ARG0 and ARG1 ) I suspect it is similar on a pdp-8 as they have similar ALUs Dwight From: cctalk on behalf of dwight Sent: Wednesday, December 23, 2015 10:38 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? I'm not sure how to code it on the machine but I know how to do it. Take A AND B = C 2* C = D ( ignore carry ) negate D ( complement and add 1 ) A + B = E ( this could have been done first ) E + D = A XOR B I think it needs 3 variables? It works because the carries are the result of the AND of the times 2 ( his RAL ) negating and subtracting is what he want to do, leaving the XOR. Dwight From: cctalk on behalf of Christian Gauger-Cosgrove Sent: Wednesday, December 23, 2015 7:14 PM To: clasyst...@gmail.com; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? On 23 December 2015 at 13:44, CLASystems wrote: > Ironically, the shortest and fastest seems to be avoidance of the MQ > altogether [thus making it work on ANY model]. > > TAD ARGONE > AND ARGTWO > CLL RAL > CIA > TAD ARGONE > DCA ARGTWO > > This works because .XOR. is addition ignoring the carry bits. So, knowing > they will happen, just allow them at first, then remove them. > Hmm, I just tried that in SIMH, and that doesn't XOR at all. I haven't a clue what it does. What I have entered: sim> ie -m 100-105 100:TAD 76 101:AND 77 102:CLL RAL 103:CIA 104:TAD 76 105:DCA 77 Locations 076 and 077 being ARGONE and ARGTWO respectively, at the start: sim> ie 076-077 76: 1234 77: 4321 After running the above code sample: sim> ie 076-077 76: 1234 77: 0574 If we "flip" ARGONE and ARGTWO's values (to 4321 and 1234 respectively): sim> ie 076-077 76: 4321 77: 3661 Neither of those is the expected 5115 of an XOR operation. Am I missing something blindingly obvious? Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
On 12/23/2015 7:14 PM, Christian Gauger-Cosgrove wrote: On 23 December 2015 at 13:44, CLASystems wrote: Ironically, the shortest and fastest seems to be avoidance of the MQ altogether [thus making it work on ANY model]. TAD ARGONE AND ARGTWO CLL RAL CIA TAD ARGONE DCA ARGTWO This works because .XOR. is addition ignoring the carry bits. So, knowing they will happen, just allow them at first, then remove them. Hmm, I just tried that in SIMH, and that doesn't XOR at all. I haven't a clue what it does. What I have entered: sim> ie -m 100-105 100:TAD 76 101:AND 77 102:CLL RAL 103:CIA 104:TAD 76 105:DCA 77 Locations 076 and 077 being ARGONE and ARGTWO respectively, at the start: sim> ie 076-077 76: 1234 77: 4321 After running the above code sample: sim> ie 076-077 76: 1234 77: 0574 If we "flip" ARGONE and ARGTWO's values (to 4321 and 1234 respectively): sim> ie 076-077 76: 4321 77: 3661 Neither of those is the expected 5115 of an XOR operation. Am I missing something blindingly obvious? Cheers, Christian I think there was just a bit of brain fade in the original listing. From DEC-08-FFAA-D PDP-8 Math Library circa 1968 the XOR routine is as follows, transcribed to SIMH: sim> de 76 1234 sim> de 77 4321 sim> ie -m 100-107 100:CLA CLL 101:TAD 76 102:AND 77 103:CIA 104:CLL RAL 105:TAD 76 106:TAD 77 107:HLT sim> go 100 HALT instruction, PC: 00110 (AND 0) sim> ex ac AC: 5115 Which produces the correct result in the AC. Locations 103/104 were swapped in order, and location 106 was left out. And for completeness location 100 was added to initially clear the AC/Link. Don
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
I'm not sure how to code it on the machine but I know how to do it. Take A AND B = C 2* C = D ( ignore carry ) negate D ( complement and add 1 ) A + B = E ( this could have been done first ) E + D = A XOR B I think it needs 3 variables? It works because the carries are the result of the AND of the times 2 ( his RAL ) negating and subtracting is what he want to do, leaving the XOR. Dwight From: cctalk on behalf of Christian Gauger-Cosgrove Sent: Wednesday, December 23, 2015 7:14 PM To: clasyst...@gmail.com; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)? On 23 December 2015 at 13:44, CLASystems wrote: > Ironically, the shortest and fastest seems to be avoidance of the MQ > altogether [thus making it work on ANY model]. > > TAD ARGONE > AND ARGTWO > CLL RAL > CIA > TAD ARGONE > DCA ARGTWO > > This works because .XOR. is addition ignoring the carry bits. So, knowing > they will happen, just allow them at first, then remove them. > Hmm, I just tried that in SIMH, and that doesn't XOR at all. I haven't a clue what it does. What I have entered: sim> ie -m 100-105 100:TAD 76 101:AND 77 102:CLL RAL 103:CIA 104:TAD 76 105:DCA 77 Locations 076 and 077 being ARGONE and ARGTWO respectively, at the start: sim> ie 076-077 76: 1234 77: 4321 After running the above code sample: sim> ie 076-077 76: 1234 77: 0574 If we "flip" ARGONE and ARGTWO's values (to 4321 and 1234 respectively): sim> ie 076-077 76: 4321 77: 3661 Neither of those is the expected 5115 of an XOR operation. Am I missing something blindingly obvious? Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.
Re: XY11 Manual, Anyone?
On 12/23/2015 10:56 AM, couryho...@aol.com wrote: it appears the pen kit for our plotter got LIFTED (aka stolen, ripped off... etc... bummer..) before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know I have a bag of original, unused Calcomp pen nibs. These are basically identical to Rapidograph pen nibs. These worked with my Calcomp 1076 plotter. I got rid of the rest of the stuff when I scrapped that plotter. (It was a HUGE beast.) So, all the holders, adapters, etc. are gone. The rest of the stuff was all badly gummed-up. Jon
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
On 23 December 2015 at 13:44, CLASystems wrote: > Ironically, the shortest and fastest seems to be avoidance of the MQ > altogether [thus making it work on ANY model]. > > TAD ARGONE > AND ARGTWO > CLL RAL > CIA > TAD ARGONE > DCA ARGTWO > > This works because .XOR. is addition ignoring the carry bits. So, knowing > they will happen, just allow them at first, then remove them. > Hmm, I just tried that in SIMH, and that doesn't XOR at all. I haven't a clue what it does. What I have entered: sim> ie -m 100-105 100:TAD 76 101:AND 77 102:CLL RAL 103:CIA 104:TAD 76 105:DCA 77 Locations 076 and 077 being ARGONE and ARGTWO respectively, at the start: sim> ie 076-077 76: 1234 77: 4321 After running the above code sample: sim> ie 076-077 76: 1234 77: 0574 If we "flip" ARGONE and ARGTWO's values (to 4321 and 1234 respectively): sim> ie 076-077 76: 4321 77: 3661 Neither of those is the expected 5115 of an XOR operation. Am I missing something blindingly obvious? Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.
Re: Nuts & Volts ESR Meter
Thanks all. I've tried the free subscription for now. That's got me Dec 2015 (which I can download as a PDF!) and will presumably get me Jan + Feb 2016. After that I'll probably take out a 1 year subscription and see how it goes. I'm happy :-) Antonio
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
The following is yet another way to do it [the same identities of course apply]: TADARGONE ANDARGTWO CMA DCATEMP TADARGONE MQL TADARGTWO MQA ANDTEMP This method has the advantage that it also works on the straight-8 EAE avoiding the singular problem of SWP unique to the two original EAE implementations,. [In theory, EAE could be on the LINC-8.] The MQ has the advantage of the .IOR. that helps start things off, but the MQ cannot be .AND. with anything. Nothing need be dependent on the MQ outside of the code. [If you assume the MQ is one of the arguments doesn't help here; most real-world needs wouldn't do that.] Ironically, the shortest and fastest seems to be avoidance of the MQ altogether [thus making it work on ANY model]. TAD ARGONE AND ARGTWO CLL RAL CIA TAD ARGONE DCA ARGTWO This works because .XOR. is addition ignoring the carry bits. So, knowing they will happen, just allow them at first, then remove them. OK, all that said, I have another problem: On the LINC-8 there is no divide, but there is an "inverse multiply" [an alternate operating mode of the regular divide]. Can anyone explain what this is exactly [I suspect it is a "poor man"s divide]. It's standard in all LINC machines [Classic LINC, LINC-8, PDP-12, B D Speare Micro-LINC 100 and 300]. cjl [also it's a one's complement machine]. ps: The major registers of the LINC-8's MQ-type register uses the very same R212 modules used for straight-8 EAE. On Wed, Dec 23, 2015 at 12:24 PM, CLASystems wrote: > The MQ is standard on the PDP-8/E and up through the VT78 and the DECmates. > > Not possible on the 8/L, but an easy option for the PDP-8/I and the PDP-12. > > This could be a problem on the straight-8 [or LINC-8] with EAE though. > It's the only model where the SWP [MQA and MQL in the same instruction] > doesn't work [in case that matters]. > > cjl > > > > On Wed, Dec 23, 2015 at 11:30 AM, Bob Vines wrote: > >> Has anyone written PDP-8 code for .XOR. that uses the MQ Register (when >> the EAE isn't available)? If so, can you share the source code and/or the >> algorithm? >> >> >> Thanks, >> >> Bob >> > > > > -- > "In the future, OS/2 will be on everyone's desktop" > > Bill Gates, 1992 > -- "In the future, OS/2 will be on everyone's desktop" Bill Gates, 1992
Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
The MQ is standard on the PDP-8/E and up through the VT78 and the DECmates. Not possible on the 8/L, but an easy option for the PDP-8/I and the PDP-12. This could be a problem on the straight-8 [or LINC-8] with EAE though. It's the only model where the SWP [MQA and MQL in the same instruction] doesn't work [in case that matters]. cjl On Wed, Dec 23, 2015 at 11:30 AM, Bob Vines wrote: > Has anyone written PDP-8 code for .XOR. that uses the MQ Register (when > the EAE isn't available)? If so, can you share the source code and/or the > algorithm? > > > Thanks, > > Bob > -- "In the future, OS/2 will be on everyone's desktop" Bill Gates, 1992
Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?
Has anyone written PDP-8 code for .XOR. that uses the MQ Register (when the EAE isn't available)? If so, can you share the source code and/or the algorithm? Thanks, Bob
RE: VAX 4000-500 PSU Overload?
Good news! It looks like I have managed to get this working again. I realised I had not checked the electrolytic capacitors on the main logic board, ones situated far from the main power output boards. I found one which had a higher ESR than two other identical ones, although the ESR was still theoretically OK according to the table on my meter it was at the limit, so I replaced it and the PSU now appears to work. It really goes to show, *all* electrolytic capacitors should be checked. Picture showing the one I replaced here: http://1drv.ms/1PlfKIV. Interestingly, I had had a similar failure in another of these PSUs, which I handed to a friend along with a VAX 4000-300 I gave him, in the hope that he would be able to fix it. As that PSU was already partially dismantled from my previous investigations, I asked to borrow it back for the purposes of doing the reverse engineering. I noticed that the same capacitor on that PSU also has a higher ESR, but again within range of what should be OK. So, looks like I might try this as a fix for the second bad PSU too, if he is OK with me trying that. Regards Rob
ST-251 MLC-1
Hi, I knew ST-251-0, ST-251-1 drives for ST506. Some time ago I've got a ST-251 labled "MLC-1". Does someone knows what the MLC stands for? What is different to the other ST-251 variants? It looks like a regular ST506 drive. Oliver
Re: Anyone collect Fortune 32/16 systems?
On 12/23/2015 10:13 AM, Al Kossow wrote: Did it use ANSI escape sequences? There is another computer collector in the Bay Area who worked on the Fortune Unix port. The MAME/MESS folks might be interested in simulating the terminal. They like working on things like that. The main CPU would be another simulation target if the technical docs ever turn up. Yes, it was based on the VT100, so could also do VT50 sequences. There was a lot of code added to handle foreign character sets, based on the Videotex/NAPLPS standards. I think I've got the hand-drawn schematics in my file still. That whole early 80s period in retrospect seems something of a black hole for me. I was dealing with a bucketload of personal issues and so took on as much work as possible to get the bills paid. So I did a fair bit of Unix development, sysadmin-ed a VAX 11/750 running BSD and got involved in too many short-term project to remember. Occasionally, I'll run across an old disk with code on it that identifies me as the author, but I don't recall even doing it--we're not talking a few dozen lines, either, but hundreds of lines. The thing I remember about Fortune the most is that they had dial-in USENET access. The rest is a blur. --Chuck
Re: Anyone collect Fortune 32/16 systems?
On 12/23/15 9:45 AM, Chuck Guzis wrote: I did the development of the firmware for the monochrome terminal--still have the code as well as the prototype PCB. Z80-based. I used the 32/16 a bit for testing. Fortune was located at the old Pepsi Bottling Plant in Redwood City. Did it use ANSI escape sequences? There is another computer collector in the Bay Area who worked on the Fortune Unix port. The MAME/MESS folks might be interested in simulating the terminal. They like working on things like that. The main CPU would be another simulation target if the technical docs ever turn up.
Re: Odd disk image format... .552?
On 12/23/15 3:38 AM, Mike Ross wrote: On Thu, Dec 24, 2015 at 12:17 AM, Wouter de Waal wrote: Recently found some long-lost images of 5 1/4" floppies that were sent to me... 10-15 years ago. Here's one of them: http://www.corestore.org/RP06.552 Looks like a straight image for a 1.44 what we call "stiffy". The 522 is the version of RP06. Google leads me to http://www.corestore.org/rp12.htm so you already know what it's for :-) Yep. The other thing I'm missing is the removable drive module for the Quantum XL of course... but I'm hoping I can simply replace the Passport drive with a SCSI2SD or SCSI2CF device and it'll Just Work... It was mentioned on another list that 7zip can deal with raw floppy images.
Re: Anyone collect Fortune 32/16 systems?
I did the development of the firmware for the monochrome terminal--still have the code as well as the prototype PCB. Z80-based. I used the 32/16 a bit for testing. Fortune was located at the old Pepsi Bottling Plant in Redwood City. --Chuck
RE: XY11 Manual, Anyone?
Didn't some one else have this problem... http://www.retrotechnology.com/restore/calcomp565.html Dave > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Fred Cisin > Sent: 23 December 2015 16:59 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: XY11 Manual, Anyone? > > On Wed, 23 Dec 2015, couryho...@aol.com wrote: > > resending with corrections! > > it appears the pen kit for our plotter got LIFTED (aka stolen, > > ripped off... etc... bummer..) before we had it glassed in > > much better! > > > living the glassed in display a areas > > ?? > > > if anyone has a calcomp box with the solenoid > > and pens that is extra to their needs please let us know > > sorry, none around
Re: Ferroresonant transformers and 3278
tis 2015-12-22 klockan 16:45 +1300 skrev Mike Ross: Finagle's law says 90% of my 3-phase big iron was acquired in the USA and expects 3-phase 60Hz 208V... :-( Many machines which did NOT have a ferroresonant transformer could be run from 50 or 60 Hz with no problem. The one place it was a problem would be getting the disk spindles turning at the right speed. Matching the available voltage would be the other detail, but a standard voltage adjusting transformer would do it fairly simply. But, the ferroresonant transformers needed the right frequency. Jon
Re: XY11 Manual, Anyone?
On Wed, 23 Dec 2015, couryho...@aol.com wrote: resending with corrections! it appears the pen kit for our plotter got LIFTED (aka stolen, ripped off... etc... bummer..) before we had it glassed in much better! living the glassed in display a areas ?? if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know sorry, none around
Re: XY11 Manual, Anyone?
resending with corrections! it appears the pen kit for our plotter got LIFTED (aka stolen, ripped off... etc... bummer..) before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know In a message dated 12/22/2015 9:31:22 P.M. US Mountain Standard Time, couryho...@aol.com writes: I had the large ibm calcomp plotter if big wide one we have the same ... it is in the hp display case at smecc museum there was a fortran graphics text book we had adn I had gotten with a HP 3000 and it had a interface board ( parallel interface?? too many years) I made it plot squares etc .. as I remember the hp intrinsics may have had some support for this.. once I did that i put it aside and went back to playing with the HP multi-pen HP plotters we sold back them at Computer Exchange Inc. In a message dated 12/22/2015 3:22:01 P.M. US Mountain Standard Time, ste...@malikoff.com writes: Original Message Subject: XY11 Manual, Anyone? From: "Mattis Lind" Date:Wed, December 23, 2015 2:53 am To: "General Discussion: On-Topic and Off-Topic Posts" -- > I have in mind to connect a machine to an IBM 1627 (CALCOMP 565) plotter > and then the XY11 which just arrive would fit nicely, I think. > > But I cannot seem to find any manual for the XY11. Anyone know of a manual? > > The board is rather simple so it should be possible to work out the details > on how to interface it by hand but it would be nice to have the proper > manual. > > Then for software I found a diagnostic, XXYAD0 that supposedly should draw > a square and a rectangle. > > Anyone know of other drawing software that uses the XY11 > > /Mattis The book 'The Minicomputer in the Laboratory' by James W Cooper covers using an X-Y plotter with an 11/05, and has assembly listings and a whole bunch of related stuff about scientific plotting. Also a lot of info on using the LPS-11 too. There are plenty of copies out there and quite cheap too. It's an excellent book and could be of use to you. Steve.
Re: XY11 Manual, Anyone?
yes I can... it got LIFTED! Ripped Off! Stolen! Bummer eh? In a message dated 12/23/2015 9:43:59 A.M. US Mountain Standard Time, ci...@xenosoft.com writes: On Wed, 23 Dec 2015, couryho...@aol.com wrote: > it appears the pen kit for our plotter got listedbefore we had > it glassed in living the glassed in display a areas Could you rephrase that?
Re: XY11 Manual, Anyone?
On Wed, 23 Dec 2015, couryho...@aol.com wrote: it appears the pen kit for our plotter got listed before we had it glassed in living the glassed in display a areas Could you rephrase that?
Re: Nuts & Volts ESR Meter
-Oorspronkelijk bericht- From: Jay Jaeger Sent: Tuesday, December 22, 2015 11:17 PM To: cctalk@classiccmp.org Subject: Nuts & Volts ESR Meter FYI, the January 2016 issue of Nuts & Volts magazine has an ESR meter. It uses a 1ma panel meter, but of course one could substitute a resistor and use a voltmeter or a multi-meter with a 1ma scale as well. http://www.nutsvolts.com/magazine (Though I see the January issue is not there yet). It also looks like one can get a 3 month complementary subscription via the URL http://nutsvolts.texterity.com/nutsvolts . The digital edition is well worth subscribing. Better yet, if you subscribe for at least 1 year you can be on their "Preferred Subscriber Network" (no extra charge - just a check-box when you subscribe) which gives you access to *all* the "digital archived" (which I found to be PDFs) issues !! (BTW, Everyday Practical Electronics, EPE, lost me as a subscriber when they did away with ordinary PDFs and instead have this odd locked thing with a plug-in. I refuse to subscribe to an online edition of a magazine where I cannot be assured of permanent access to the issues I paid for! I don't find their "EPE PDF" version with its plug-in to be acceptable. I seem to recall that they restricted printing such that one could not simply print it to a PDF either. Too bad.). JRJ - Thanks for this post Jay. On the Viperpits forum I received a digital issue (PDF) some 8 months ago. I remember it was fun reading, even if I was not planning on building it. Thanks also for the hint "Preferred Subscriber Network" - I checkmarked it! I subscribed just a few minutes ago. My first issue will be February 2016. I have not yet checked, but with the "Preferred Subscriber Network", I hope to have lots of reading stuff during the season's holidays. Hmmm, as if I had nothing else to do :-/ The list may have a lot of chatter, but the "Delete" key is always within reach. But your post is exactly one of the reasons to stay aboard! Thanks Jay! - Henk
RE: VAX 4000-500 PSU Overload?
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent > Hilpert > Sent: 21 December 2015 22:33 > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Re: VAX 4000-500 PSU Overload? > > SMD markings and packagings are ambiguous, unclear, and all over the > spectrum. > Here's a good site for chasing SMD markings: > http://www.s-manuals.com/smd > > REing boards like this is an iterative process with consideration of the device > markings, pin use, measurements, what makes sense electronically, and > design period. > > In the two cases you mention it looks like the H's are a slightly different font > or size and spaced slightly differently, I suspect the id codes there are A4 and > 2F. > > An initial guess for the "A4H" device that's right above the LM339 is an A4- > code dual diode with only one diode used, as it looks (from the photo) like > one pin is unconnected. > http://www.s-manuals.com/smd/a4 > > A good guess for the "2FH" devices are 2F-code PNP transistors: > http://www.s-manuals.com/smd/2f > > Similarly, the "1PG" or "1PC" device may be a 1P-code NPN transistor. > > Diodes and transistors are best double-checked by first characterising your > multimeter with PN junctions in known transistors or diodes so you know > what ohms-range and what reading to expect on your MM when you have a > PN junction in forward-conduction. Look for the lowest ohms range that will > give you a reading for forward conduction. Then use that knowledge to check > the SMD transistors and diodes for sensibility. > > Some strategy: > > - Sort out all the network connections for the board, by visual > observation and continuity measurement. > > - Identify the power supply pins to the board by chasing the power > supply pins of the IC packages. > This will include or begin with identifying the ground connection(s) > to the board in part by chasing the > ground from the main unit to the pins which this board plugs into. > Is an internal layer on the board a ground plane? > > - From what I can discern it may be that the two ICs are supplied by > +/- supplies, that is, the V- pin for the > ICs may go to a negative supply rather than ground, so there may be > ground(s), V- and V+ connections > to the board, rather than just ground and V+. > > - I'd suggest drawing the two op amps one above the other with a > positive bus horizontally at the top of the page. > If there is a negative supply draw a negative bus horizontally at the > bottom of the page. > Draw in the networks around the op amps, it looks like they are > similar and feed into the 3 terminal device located to the upper-right of the > LM339, > and thence into one of the comparators. That should take care of a > lot of the board, then do the remaining 3 comparators. > > - within sensibility, try to draw everything so electron flow is 'up' the > page, this means for example that PNP transistors >will be drawn upside down, with the emitter at top-right, while NPNs > will be conventional with emitter at lower-right. >Everything should sit vertically in between the negative bus below > and positive bus above or between grounds towards the bottom and the > positive bus above. > > - within sensibility, try to keep signal flow left-to-right with only > feedback paths going 'backwards' right-to-left. I reckon I have got about as far as I can with reverse engineering the riser board that connects to the current sensing resistors. I am less certain now that the fault could be in this area, but I thought that I might as well finish the schematic since I have got so far with it. The result is here: http://1drv.ms/1Yxy8nG. The part under the "Riser Board" label is as complete as I can make it, the part under the "Output Stage" label is just the very last part of the board that the riser is connected to. The X3-L and X3-R connectors are the connectors on the riser board. There is much more on the board the riser is attached to, mainly transformers, large resistors and capacitors, plus another little riser board with a UC3825 PWM controller on it; it also has tracks in a middle layer, I can see them a bit, but they are very hard to trace. There are likely some mistakes. For example, not having the datasheets for what are probably transistors and dual diodes, I may have got them the wrong way round, although I am pretty sure the pin that is on its own on one side of the package is the common cathode for the dual diodes, and the base for the transistors. I am not sure how useful the schematic is going to be. It would be good if I could test it in isolation on the bench, but it looks like it would be a difficult set up, and I am not at all certain that the fault is in this area anyway. I think the best thing now would be if I could test the whole +12V/-12V sub-assembly on the be
Re: Nuts & Volts ESR Meter
On 2015-12-23 7:18 AM, Antonio Carlini wrote: Can someone with the digital edition clarify whether it really is a PDF or not? If you look at the online version, there is a "download" link to the .PDF in the upper right corner. It downloads and reads just fine. Thanks Jay! -Jon
Re: XY11 Manual, Anyone?
it appears the pen kit for our plotter got listed before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know many thanks Ed Sharpe archivist for smecc _www.smecc.org_ (http://www.smecc.org) In a message dated 12/23/2015 6:28:28 A.M. US Mountain Standard Time, dave.g4...@gmail.com writes: Surely there is a copy of CalComp Host Computer Basic Software (HCBS) around somewhere that talks to the XY11. After all the Calcomp is pretty thick. All it can do is move 1 step at once, well it can do diagonals as well, but pretty thick... Dave G4UGM > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Stefan > Skoglund (lokal användare) > Sent: 23 December 2015 11:07 > To: cctalk@classiccmp.org > Subject: Re: XY11 Manual, Anyone? > > > > > Then for software I found a diagnostic, XXYAD0 that supposedly > > > should draw a square and a rectangle. > > > > > > Anyone know of other drawing software that uses the XY11 > > > > > > /Mattis > > > > The book 'The Minicomputer in the Laboratory' by James W Cooper covers > > using an X-Y plotter with an 11/05, and has assembly listings and a > > whole bunch of related stuff about scientific plotting. Also a lot of > > info on using the LPS- > > 11 too. > > There are plenty of copies out there and quite cheap too. It's an > > excellent book and could be of use to you. > > > > Steve. > > > > Boken finns i Umeå universitets boksamling (även på > fysikinstitutionen.) > Det verkar inte finnas något exemplar i Uppsala däremot. :-) Kastad ?
Re: Ferroresonant transformers and 3278
On Wed, 23 Dec 2015, Stefan Skoglund (lokal anv�ndare) wrote: Find a property with its own little water power station ? And then rebuild the generator into a 60 Hz one. depending on the generaqtor design, increase the rate of flow of the water.
Re: Remember the old "Choose your own adventure books" By D & D! ! !
> > IN Qbasic there is a SLEEP command as in... > > 20 SLEEP=10How would the sleep function work in basic I have tryed 10 sleeo=10, > 10 "sleep=5" its not working... > But thanks again Ethan!!! On Wed, 23 Dec 2015, william degnan wrote: If it does not appear in your version of BASIC's manual it won't work like it does in QBASIC, at least not out of the box. I don't even know which BASIC you are trying to translate into, . . . IF it is using 10 as an argument to a function called sleep, then try SLEEP(10) or SLEEP (10)
Re: Anyone collect Fortune 32/16 systems?
On 12/23/15 4:57 AM, Tony Pflum wrote: I was with a retailer that sold Fortune in about 1982. It is Motorola 68000 system running UNIX. It was sold to small business for word processing and accounting and supported multiple dumb CRT terminals. You could get a C compiler for it. The problem is the software is locked to the unit. I have manuals and a set of floppies (most likely locked) No time to do anything though, I'm in the middle of a move to a new building at work.
Re: An IBM I/O Selectric interface using TTL and a 2708 EPROM
On 12/22/2015 10:43 PM, ste...@malikoff.com wrote: > Back in the late 70s early 80s one of Dad's work colleagues came up with this > circuit for interfacing > an IBM I/O Selectric to a microcomputer. We had one, which we planned to use > with our Fairchild/Mostek > F8 development board, but it never got done - my brother and I wanted a > computer with a screen, not a > printer! So we spent our pocket money (and Dad's too) on an S-100 kit system, > but that's another story. > Recently I found the only remains of our I/O writer, the platen. Sadly I > think it must have been junked, > the platen being kept to roll out photographic prints in Dad's darkroom. > > I just finished scanning, cleaning up the degradation and turning the circuit > into a PDF. These days an > Arduino or RasPi would be a simpler and more flexible way to go, but I hope > you find it interesting > looking at how it was done with TTL and discrete components. > > The circuit was designed by (I believe) Neil Taylor, possibly with the help > of Derek Williamson, both > brilliant IBM Australia CE's. I know my dad always spoke very highly of them. > > It's an 8-page PDF at > http://web.aanet.com.au/~malikoff/misc/IBM_IO_Selectric_interface.pdf > > Regards, > > Steve Malikoff. > > Thanks. Squirreled away in case I ever find an IO Selectric! JRJ
Re: Nuts & Volts ESR Meter
On 12/23/2015 7:18 AM, Antonio Carlini wrote: > On 23/12/15 12:23, Jacob Ritorto wrote: >> fwiw, Jay, I appreciated your input, followed your link and >> subscribed, having never heard of the magazine before.. Looking >> forward to the Jan. issue with the ESR meter stuff, which I need for >> diagnosing my 11/45's caps. My opinion is that this list is pretty >> indispensable specifically for the mentorship that's happening with >> situations like this. Thank you. --jake > > At $20 for a year for the digital edition, it does look quite good. > > However, it says: " *Q: Is Nuts & Volts available in a digital format?* > A: Yes!/Nuts & Volts/Online is an exact replica of the print edition. It > provides the same visual experience, but is delivered and viewed via the > web, using Published Web Format (PWF) technology. It enables readers to > link directly to advertiser information and additional web content > referenced in articles./Nuts & Volts/Online is viewed via the web and is > printable AND downloadable." > > Nowhere does it say PDF. I don't want to pay for something that could > vanish, I want something tangible for my $20. > > Can someone with the digital edition clarify whether it really is a PDF > or not? It is indeed a PDF, with no strings attached. I have been subscribed for more than 4 years. JRJ > > Thanks > > Antonio >
Re: Odd disk image format... .552?
On Thu, Dec 24, 2015 at 12:17 AM, Wouter de Waal wrote: > >> >> Recently found some long-lost images of 5 1/4" floppies that were sent >> to me... 10-15 years ago. Here's one of them: >> >> http://www.corestore.org/RP06.552 > > > Looks like a straight image for a 1.44 what we call "stiffy". The 522 is the > version of RP06. > > Google leads me to http://www.corestore.org/rp12.htm so you already know > what it's for :-) Yep. The other thing I'm missing is the removable drive module for the Quantum XL of course... but I'm hoping I can simply replace the Passport drive with a SCSI2SD or SCSI2CF device and it'll Just Work... Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'
RE: XY11 Manual, Anyone?
Surely there is a copy of CalComp Host Computer Basic Software (HCBS) around somewhere that talks to the XY11. After all the Calcomp is pretty thick. All it can do is move 1 step at once, well it can do diagonals as well, but pretty thick... Dave G4UGM > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Stefan > Skoglund (lokal användare) > Sent: 23 December 2015 11:07 > To: cctalk@classiccmp.org > Subject: Re: XY11 Manual, Anyone? > > > > > Then for software I found a diagnostic, XXYAD0 that supposedly > > > should draw a square and a rectangle. > > > > > > Anyone know of other drawing software that uses the XY11 > > > > > > /Mattis > > > > The book 'The Minicomputer in the Laboratory' by James W Cooper covers > > using an X-Y plotter with an 11/05, and has assembly listings and a > > whole bunch of related stuff about scientific plotting. Also a lot of > > info on using the LPS- > > 11 too. > > There are plenty of copies out there and quite cheap too. It's an > > excellent book and could be of use to you. > > > > Steve. > > > > Boken finns i Umeå universitets boksamling (även på > fysikinstitutionen.) > Det verkar inte finnas något exemplar i Uppsala däremot. :-) Kastad ?
Re: Anyone collect Fortune 32/16 systems?
On 23/12/2015 12:57, Tony Pflum wrote: I was with a retailer that sold Fortune in about 1982. It is Motorola 68000 system running UNIX. It was sold to small business for word processing and accounting and supported multiple dumb CRT terminals. Tony pflum On Dec 23, 2015 4:30 AM, "jim s" wrote: There is one quite inexpensive on Ebay right now. Looks to be a match for the system unit at the CHM as well. Maybe they need a spare. I don't know if they want parts machines or not, but for the price it is almost tempting to pick it up. http://www.ebay.com/itm/321399704868 Hope Christmas brings everyone a lot of new toys. (as in old ones). Thanks jim I saw some still in use about 1987 or there abouts. Rod Smallwood
Re: Nuts & Volts ESR Meter
On 23/12/15 12:23, Jacob Ritorto wrote: fwiw, Jay, I appreciated your input, followed your link and subscribed, having never heard of the magazine before.. Looking forward to the Jan. issue with the ESR meter stuff, which I need for diagnosing my 11/45's caps. My opinion is that this list is pretty indispensable specifically for the mentorship that's happening with situations like this. Thank you. --jake At $20 for a year for the digital edition, it does look quite good. However, it says: " *Q: Is Nuts & Volts available in a digital format?* A: Yes!/Nuts & Volts/Online is an exact replica of the print edition. It provides the same visual experience, but is delivered and viewed via the web, using Published Web Format (PWF) technology. It enables readers to link directly to advertiser information and additional web content referenced in articles./Nuts & Volts/Online is viewed via the web and is printable AND downloadable." Nowhere does it say PDF. I don't want to pay for something that could vanish, I want something tangible for my $20. Can someone with the digital edition clarify whether it really is a PDF or not? Thanks Antonio -- Antonio Carlini arcarl...@iee.org
Re: Anyone collect Fortune 32/16 systems?
I was with a retailer that sold Fortune in about 1982. It is Motorola 68000 system running UNIX. It was sold to small business for word processing and accounting and supported multiple dumb CRT terminals. Tony pflum On Dec 23, 2015 4:30 AM, "jim s" wrote: > > There is one quite inexpensive on Ebay right now. Looks to be a match for > the system unit at the CHM as well. Maybe they need a spare. I don't know > if they want parts machines or not, but for the price it is almost tempting > to pick it up. > > http://www.ebay.com/itm/321399704868 > > Hope Christmas brings everyone a lot of new toys. (as in old ones). > Thanks > jim >
Re: Ferroresonant transformers and 3278
tis 2015-12-22 klockan 16:45 +1300 skrev Mike Ross: > H. > > I do have a massive idler motor - as in it takes two people to even > think about lifting it - from my days in NY when I had to manufacture > a 3rd phase to make the S/3 and other items work... I wonder if I > could do anything using that as a starting point? > > Three phase is no problem here... previous owner of house was a > woodworker and I have 3-phase 50Hz 400V straight to the workshop > already wired in :-) > > Finagle's law says 90% of my 3-phase big iron was acquired in the USA > and expects 3-phase 60Hz 208V... :-( Find a property with its own little water power station ? And then rebuild the generator into a 60 Hz one.
Re: Nuts & Volts ESR Meter
On Tue, Dec 22, 2015 at 10:26 PM, Jay Jaeger wrote: > On 12/22/2015 9:06 PM, drlegendre . wrote: > > So then what's the point of sending the link if the interesting content > > isn't actually present?? ;-p > > > > Not trying to be the arse, but seriously..? > > > > Well, I'm VEY Sorry. NOT. Sheesh. > [...] > Maybe next time I just won't bother. This group is wayy to > eager to pick on folks for this or that. > fwiw, Jay, I appreciated your input, followed your link and subscribed, having never heard of the magazine before.. Looking forward to the Jan. issue with the ESR meter stuff, which I need for diagnosing my 11/45's caps. My opinion is that this list is pretty indispensable specifically for the mentorship that's happening with situations like this. Thank you. --jake
Re: Remember the old "Choose your own adventure books" By D & D! ! !
> > > > Also your right Ethan and thank you that did the trick print CHR$ (147) > IN Qbasic there is a SLEEP command as in... > > 10 PRINT " HELLO WHAT IS YOUR NAME? " PNAME$ > 20 CLS > 20 SLEEP=1030 PRINT "HELLO" PNAME$ "yOUR STARTING A ADVENTURE THAT WILL TAKE YOU > THROUGH THE" > 40 PRINT "MISTY MOUNTAINS " > = > > How would the sleep function work in basic I have tryed 10 sleeo=10, 10 > "sleep=5" its not working... > > But thanks again Ethan!!! > If it does not appear in your version of BASIC's manual it won't work like it does in QBASIC, at least not out of the box. -- Bill
Re: Odd disk image format... .552?
Recently found some long-lost images of 5 1/4" floppies that were sent to me... 10-15 years ago. Here's one of them: http://www.corestore.org/RP06.552 Looks like a straight image for a 1.44 what we call "stiffy". The 522 is the version of RP06. Google leads me to http://www.corestore.org/rp12.htm so you already know what it's for :-) W
Re: XY11 Manual, Anyone?
> > Then for software I found a diagnostic, XXYAD0 that supposedly > > should draw > > a square and a rectangle. > > > > Anyone know of other drawing software that uses the XY11 > > > > /Mattis > > The book 'The Minicomputer in the Laboratory' by James W Cooper > covers using an > X-Y plotter with an 11/05, and has assembly listings and a whole > bunch of related > stuff about scientific plotting. Also a lot of info on using the LPS- > 11 too. > There are plenty of copies out there and quite cheap too. It's an > excellent book > and could be of use to you. > > Steve. > Boken finns i Umeå universitets boksamling (även på fysikinstitutionen.) Det verkar inte finnas något exemplar i Uppsala däremot. :-) Kastad ?
PDP-12 Restoration at the RICM
Lots more work on the PDP-12 at the RICM. We got an RS-232 console board and baud rate generator from Vincent and now have both serial ports working. Warren modified Kyle's SerialDisk and we booted OS/8 from an emulated RK05 on the second serial port. We fixed one of the bus interface boards in the DW8E Omnibus expansion chassis, and connected the RX8E/RX02. We were able to boot OS/8 from an RX01 diskette. We replaced an M160 flip-chip and now the EAE instructions work. We replaced an M103 flip-chip and the KW12 clock works. This system is new enough that ECO EM12-0055 for the KW12 was installed when it was built. This means that the KW12 Maindecs earlier than D8CD will not work. We cleaned up the PC04 paper tape reader/punch and connected it to the PC8E. The punch works OK, but the reader does not always step correctly and does not read the tape correctly. Fixing this will be the next project. Once we get the PC04 working the next project will be the RK8E/RK05. Out of frustration we set aside fixing the TC12 LINCtape controller. We see spikes on data track #3 that corrupt the data. We swapped the TU56 for a known good TU55, swapped the data/control cable, and swapped every flip-chip that is related to data track #3. Nothing has eliminated the spikes. The only part that we have not swapped is the backplane wiring between the data cable and the G882 flip-chips. Warren has a plan to temporarily replace that. We found that the maintenance prints that came with the system do not include ECO EM12-0055. Does anyone have a set of KW12 prints that include ECO EM12-0055? -- Michael Thompson
Re: PDP-12 Restoration at the RICM
On 12/22/2015 7:31 PM, Michael Thompson wrote: > Lots more work on the PDP-12 at the RICM. We got an RS-232 console board > and baud rate generator from Vincent and now have both serial ports > working. Warren modified Kyle's SerialDisk and we booted OS/8 from an > emulated RK05 on the second serial port. We fixed one of the bus interface > boards in the DW8E Omnibus expansion chassis, and connected the RX8E/RX02. > We were able to boot OS/8 from an RX01 diskette. We replaced an M160 > flip-chip and now the EAE instructions work. We replaced an M103 flip-chip > and the KW12 clock works. This system is new enough that ECO EM12-0055 for > the KW12 was installed when it was built. This means that the KW12 Maindecs > earlier than D8CD will not work. We cleaned up the PC04 paper tape > reader/punch and connected it to the PC8E. The punch works OK, but the > reader does not always step correctly and does not read the tape correctly. > Fixing this will be the next project. I have an image of MAINDEC-12-D8CD-PB, and a listing as well (MDEC-12-D8CD-L in my inventory). Let me know if you need them as well as the drawings (see below). It is in an archive folder with a bunch of other interesting PDP-12/PDP-8 stuff. Can you give me a pointer to the SerialDisk info? Sounds interesting. Hopefully you can actually fix the original M160 and M103 cards. > > Once we get the PC04 working the next project will be the RK8E/RK05. > > Out of frustration we set aside fixing the TC12 LINCtape controller. We see > spikes on data track #3 that corrupt the data. We swapped the TU56 for a > known good TU55, swapped the data/control cable, and swapped every > flip-chip that is related to data track #3. Nothing has eliminated the > spikes. The only part that we have not swapped is the backplane wiring > between the data cable and the G882 flip-chips. Warren has a plan to > temporarily replace that. Maybe just run another wire. If the wire is temporarily opening, that would fix it. But, if the existing wire is shorting to some *other* pin (which is a distinct possibility, of course), another wire may not help. If it doesn't, then you presumably do have a short to another pin - look at where it passes near other pins. Or maybe just start with that, and measure resistance from the wire(s) in question to the post(s) that they come very close to? > > We found that the maintenance prints that came with the system do not > include ECO EM12-0055. > Does anyone have a set of KW12 prints that include ECO EM12-0055? > Looks like mine do, with the ECO dated 12/71. Affected drawings that I detected: CLEB Input Chn 2 CLEC Input Chn 3 CLR Clock Rate Engineering Specification Mine also include Rev. B - EM12-57, dated 6/72. Affected drawings: CLC Clock I/O Control Shall I scan them in? JRJ
Re: Remember the old "Choose your own adventure books" By D & D! ! !
On 12/22/2015 01:38 AM, Ethan Dicks wrote: > On Tue, Dec 22, 2015 at 1:04 AM, Cindy Croxton wrote: >>> Has any of you took one of them old choose your own adventurer books and >>> coded it into a text RPG in basic? >>> >>> 1. Clear the screen for the next page! >>> >> Clear Screen was CLS, IIRC. > For TRS-80 BASIC, I think. For Commodore BASIC, it's > > PRINT CHR$(147) > > (you can also type PRINT and a quote and hit SHIFT-CLR HOME and > another quote, which works well when you want to print a string that > starts by clearing the screen and going to the top left corner, then > has other movement and/or text) > > There are a number of Commodore BASIC books out there, and for > beginner stuff, the one that comes with the machine (if you get one in > the box) will get you started. > > -ethan In Qbasic it's CLS Also your right Ethan and thank you that did the trick print CHR$ (147) IN Qbasic there is a SLEEP command as in... 10 PRINT " HELLO WHAT IS YOUR NAME? " PNAME$ 20 CLS 20 SLEEP=10
Anyone collect Fortune 32/16 systems?
There is one quite inexpensive on Ebay right now. Looks to be a match for the system unit at the CHM as well. Maybe they need a spare. I don't know if they want parts machines or not, but for the price it is almost tempting to pick it up. http://www.ebay.com/itm/321399704868 Hope Christmas brings everyone a lot of new toys. (as in old ones). Thanks jim
