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Type: Posts; User: Martin Hepperle

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  1. You should be able to see the current CP/M I/O...

    You should be able to see the current CP/M I/O device assignments with

    STAT DEV:

    and then change it with something like

    STAT TTY:=CON:
    to connect e.g. CON: input/output to the TTY: device...
  2. ... for more deatils on patchable areas in the...

    ... for more deatils on patchable areas in the interpreter files see:
    http://www.retroarchive.org/cpm/cdrom/CPM/GENDOC/ZORKNOTE.TXT
    Good luck,
    Martin
  3. You are right, one haas to patch the interprter...

    You are right, one haas to patch the interprter like so (just tested):

    Patch a different line length into the interpreter:
    0) check the size of your ZORK1.COm file - should be 68 records
    1) load...
  4. you could load the story .DAT file with DDT and...

    you could load the story .DAT file with DDT and have a look at those bytes...if you had DDT ion your disks.
  5. You could also look at the bytes at offsets &20H...

    You could also look at the bytes at offsets &20H to &24H in the game file.

    Usually they are patched for different terminals by the installer:

    Offset Content
    20 Screen height (lines): 255...
  6. Hi, on my web site under...

    Hi,

    on my web site under https://www.mh-aerotools.de/hp/hx-20/index.htm you find my MH-20 screen emulator, which is also a disk emulator for the HX-20 and the PX-8 (probably also for the PX-4).
    ...
  7. Thank you for your reply. Indeed I found more...

    Thank you for your reply. Indeed I found more information on the Series III device, which is similar outside, but rather different under the hood.
    I have some of the manuals for the Series II which...
  8. HP 3396B Integrator II - looking for BASIC ROM Image

    While not exactly a computer, this device also came with an optional BASIC system.

    It has a Z80 processor, an HP-IL and a RS-232C interface and can talk to medical/chemistry lab instruments, an...
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    Finally I wrote some brand new drivers for GSX-80...

    Finally I wrote some brand new drivers for GSX-80 under CP/M 2.2 to support my devices of interest:


    HP 2648 and 2627 terminals: https://www.mh-aerotools.de/hp/cpm/GSX-80-DDHP26XX.zip
    GEM...
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    To close this question: In the meantime I...

    To close this question:

    In the meantime I found some GSX driver collections on Udo Munk's web site https://www.autometer.de/unix4fun/z80pack/index.html.
    He even provides his Tektronix driver...
  11. Replies
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    Geoff, thank you for your reply. The HX-20 is...

    Geoff,

    thank you for your reply. The HX-20 is an interesting machine and after looking into it I obtained a PX-8. I could easily adapt the disk drive emulator to this system - and the PX-8 uses...
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    GSX for CP/M 2.2

    Hi,

    I am working with some small CP/M 2.2 systems and would like to find more info on the GSX graphics system.
    There is some information about programming and a few drivers but much seems to be...
  13. Instead of setting up a logic analyzer you can...

    Instead of setting up a logic analyzer you can also use a simple RS232 pass-through cable with a tap (so to say a T-cable).
    This allows you to record the data flow with a terminal program like...
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    Geoff, for the HX-20 you might be interested in...

    Geoff,
    for the HX-20 you might be interested in trying my display and disk emulator software running on a Windows or Linux computer.
    See https://www.mh-aerotools.de/hp/hx-20/index.htm
    The...
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    At the time, there were many replacements for the...

    At the time, there were many replacements for the SUBMIT command written to remedy this. E.g. SUPERSUB (http://www.classiccmp.org/cpmarchives/cpm/Software/WalnutCD/lambda/soundpot/p/supersub.lbr) or...
  16. issue solved - another PSU has been found.

    issue solved - another PSU has been found.
  17. Wanted: Power Supply for HP 9000/300 (in Europe)

    Hi,

    looking for a power supply unit 0950-1760 complete with switch and extension rod for a HP-9000 DIO extender box.

    The PSU should be the same as in most HP-9000/300 systems (300/310/320)....
  18. Geoff, thank you for the Pictures - surely not...

    Geoff,

    thank you for the Pictures - surely not perfect, but sufficient. I was not expecting big news from their contents but wanted to complete my manual and make sure that I understood these...
  19. Geoff, yes, these are the pages. A photo...

    Geoff,

    yes, these are the pages. A photo should work, if the photo is of decent quality (2000+ pixels in size). Ideally as a raw image to avoid too many JPG compression artifacts.
    In the long...
  20. Epson HX-20 BASIC Reference Manual Scan - Missing Pages

    The internet offers many copies of the BASIC Reference Manual for the HX-20. All these PDFs seem to come from the same source, just copied over and over again, partially watermarked and otherwise...
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    You can easily load programs in ASCII Format via...

    You can easily load programs in ASCII Format via COM0.
    Just issue
    LOAD "COM0:(68N1E)"

    On a Windows PC (a simple 3-wire null modem cable is needed) you can use RealTerm to send the text file....
  22. Hi, it is very likely that the electrolytic...

    Hi,

    it is very likely that the electrolytic capacitors on the motherboard have leaked and are dried up.

    I just started to replace those on my HX-20 and the screen, which was dim and sometimes...
  23. Wanted: HP keyboard C1081A or C1082A for HP 700/70 Terminal

    Hi,

    I am looking for a C1081A or C1082A keyboard for my HP700/70 terminal - preferably in Europe or even Germany to minimize shipping costs.
    Ideally, the layout should be US (ABA) or German...
  24. Hi, as far a I understand the CIC.COM program...

    Hi,
    as far a I understand the CIC.COM program supplied with the 100LX is for modem cards and knows nothing about this parallel card. So CIC.COM != CIC.COM.
    Martin
  25. Unfortunately my card does not show a working A:...

    Unfortunately my card does not show a working A: drive in my HP 100LX.
    If I insert the card into a Windows XP laptop with a PCMCIA slot the card is recognized and configured as LPT3.
    So I assume...
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