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Type: Posts; User: Mike_Z

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  1. Replies
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    No, Do not have any 74ls245's at all. That is a...

    No, Do not have any 74ls245's at all. That is a pretty neat thru hole idea. Don't think, at least hope, that I don't need that. Could be a little to difficult for me to install. Anyway, we all heard...
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    Doesn't look like the LPT is installed. ...

    Doesn't look like the LPT is installed.



    PDP-8 simulator V3.9-0

    THIS PDP8E HAS 2 SERIAL PORTS. DEVICE 03/04 CONSOLE RUNNING AT 110 BAUD
    DEVICE 40/41 FOR SERIAL DISK, RUNNING AT 38400 BAUD....
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    Tried this but it didn't seem to change anything....

    Tried this but it didn't seem to change anything. I added the SET CONSOLE WRU=5 in the PDP8.ini file and ran it, this is what showed.


    PDP-8 simulator V3.9-0

    THIS PDP8E HAS 2 SERIAL PORTS....
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    Well.... I really appreciate this. I copied my...

    Well.... I really appreciate this. I copied my disk image from SerialDisk to my laptop PDP8 directory and changed the PDP8.ini file as you said. I can see my FORT.FT files in both images and can copy...
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    Well.... I tried the Kermit method suggested by...

    Well.... I tried the Kermit method suggested by Volker. I did get this to work and most likely will do for me. Yet, I'm interested in the other method of SimH and SerialDisk working together. I've...
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    To be perfectly honest, you guys lost me. I'm...

    To be perfectly honest, you guys lost me. I'm unsure if I do this stuff that I can accomplish what I want. Just to be clear. I'm trying to relearn Fortran IV. When I'm at home I like to use my real...
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    I thought that I'd try something simple. Just...

    I thought that I'd try something simple. Just unload R0AB, then BOOT. I got this message



    Unit not attached, PC: 27733 (DCMA)

    sim>


    So, maybe the Boot of BUILD doesn't work in Simh?
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    Start to horse around with Simh build. Here is...

    Start to horse around with Simh build. Here is what I did


    .RUN SYS BUILD

    $PO\O\R

    KL8E: *TTY
    R2SY: *SYS
    R0AB: *R20A *R20B
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    Well..... interesting. I'm not very familiar with...

    Well..... interesting. I'm not very familiar with the PDP8 disk drive interface stuff, but I think the solution maybe to use Kyle's procedure and use BUILD in Simh to add Kyle's SerialDisk. Now that...
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    Are you thinking that since the PDP8E handlers...

    Are you thinking that since the PDP8E handlers were changed to work with SerialDisk, my image will not work with simH? Mike
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    You are correct, but for some reason I can not...

    You are correct, but for some reason I can not make them work in Simh. I place that image in the correct place and change the .ini file and Simh will load but I will not get the dot prompt. Mike
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    Well.... Today I found that I can use WinSCP to...

    Well.... Today I found that I can use WinSCP to get into the Raspberry PI and transfer files from the PI to my windows machine. I found the disk images I have in the PI, but am not sure which one the...
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    Thanks for the help, I have to take the wife to...

    Thanks for the help, I have to take the wife to the store. I'll try this later. Mike
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    Forgive me, a little more (maybe a lot)...

    Forgive me, a little more (maybe a lot) information is needed. I'm running OS/8 and have one of Kyle's Raspberry PI's emulating an RK05 disk. I can communicate with the Rasp Pi, I think I used PUTTY....
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    Transfer files from a REAL PDP8E and SIMh

    I've done this in the past, but can not remember how I did it and I can't find anything about this in my notes. I'm relearning Fortran IV programming. When I'm home I use my real PDP8e and when away...
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    Thanks Chuck. I never seen such a thing. Watched...

    Thanks Chuck. I never seen such a thing. Watched a couple of youtube and they look pretty neat. Just purchased some and hopefully they work as shown. Thanks again. Mike
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    Frustrating Problem Part 2

    In an earlier post I asked for help with an intermittent problem on my CP/M 2.2 machine. It is a home made 8080 machine based on an old IMSAI mother board. I pretty well determined that the old...
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    Well..... I just could not keep away or stop...

    Well..... I just could not keep away or stop thinking about this problem. While watching football on TV, I thought that maybe the problem really is with my S-100 sockets. I had cleaned them and...
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    I used the same chips. Although I have replaced...

    I used the same chips. Although I have replaced the 8272, FDC, 8237, DMA, and 8259 PIC, with no effect. The other logic chips got mixed up, meaning that they were not placed back in the same place. ...
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    I have one socket that is a little suspect. I...

    I have one socket that is a little suspect. I have the front panel board plugged into that one. Yet the contacts all brightened up nicely after cleaning. I used a small piece of cardboard, that I...
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    I believe I looked at that a while back, but will...

    I believe I looked at that a while back, but will check it again.Thanks, Dwight for the tip. Right now I a little concerned about the S-100 bus connectors on my mother board. I've cleaned them with...
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    No, the FDC is the only interrupt I have. And...

    No, the FDC is the only interrupt I have. And since I'm so much luck using them, I don't think I'll be converting any of my polled deviced anytime soon. Today, I want to try and clean the s-100...
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    No.... The DMA DACK0 8237 Pin 25, goes directly...

    No.... The DMA DACK0 8237 Pin 25, goes directly to the 8272 Pin 15. AND the DMA EOP 8237 Pin 36 is inverted and applied to the 8272 Pin 16. Why would you need to combine these signals? Mike
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    I did not forget about this. I got sick and could...

    I did not forget about this. I got sick and could not participate. It hit me hard. I could not go into the basement and work. In fact any kind of anything, other than sleeping was difficult. Well, it...
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    I think I remember seeing a wiring pencil, but...

    I think I remember seeing a wiring pencil, but never used it. As far as me using an open blade that is as sharp as a surgical unit, I fear that blood will flow. Sounds like it should work and you...
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