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  1. Replies
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    Here is a link to version 1.1 of the emulator...

    Here is a link to version 1.1 of the emulator that includes the ability to transfer files between the CP/M and the host PC (also works under MOS-80). The CP/M programs R.COM and W.COM are used to...
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    I’ll have an update soon that allows you to...

    I’ll have an update soon that allows you to easily move files back and forth between your PC and a CP/M or MOS-80 disk in the emulator. This will allow you to edit source files, view listing files,...
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    The Sol-20 personality PROM (e.g., SOLOS)...

    The Sol-20 personality PROM (e.g., SOLOS) converts DEL (7Fh) to underscore (5Fh). In turn, 5Fh is used as the delete (or backspace) character within SOLOS. So pressing the DEL key unshifted generates...
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    Dave, My Sol does a delete with shift-del ...

    Dave,

    My Sol does a delete with shift-del

    Mike
  5. Replies
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    Disk images are provided in the “disks” folder. A...

    Disk images are provided in the “disks” folder. A full backup copy of all disk images is in the “disks/backup” folder.

    Different disks are loaded into the machine by editing the config.txt file in...
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    The zip file now contains both a 32 bit and 64...

    The zip file now contains both a 32 bit and 64 bit executable. I have updated the ReadMe file as well.

    https://deramp.com/downloads/mostek/AID-80F/emulator/

    Mike
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    You can uninstall your 64 bit Cygwin and download...

    You can uninstall your 64 bit Cygwin and download and install 32 bit Cygwin instead, or, I’ll build a 64 bit version Monday and update the zip file and the ReadMe instructions.

    Mike
  8. Replies
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    I built sim.exe under 32 bit Cygwin. Could be...

    I built sim.exe under 32 bit Cygwin. Could be you’ll have to rebuild from sources if you’re using 64 bit Cygwin. Let me know if that’s the case.

    Mike
  9. Unless you look at the BIOS source for the...

    Unless you look at the BIOS source for the particular CP/M you are running, there is no way to know “certainly” when a BIOS will flush. I’ve seen numerous buffered BIOS’s that ignore the directory...
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    Not unusual for file flags to be messed up when...

    Not unusual for file flags to be messed up when copying to Windows. Make sure the execute flag is set on sim.exe by typing: chmod +xxx sim.exe

    Other than that, you may need to put the mosteksim...
  11. Replies
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    10,896

    I have posted the AID-80F / SYS-80FT emulator...

    I have posted the AID-80F / SYS-80FT emulator here: https://deramp.com/downloads/mostek/AID-80F/emulator/

    The console emulates a generic serial terminal, not the specifics of the VTI (video...
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    You've done some great work diagnosing and fixing...

    You've done some great work diagnosing and fixing this keyboard Dave! I'll archive this PROM content in the Sol-20 section of my website with the disclaimer that it "appears" to be correct. It would...
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    With UPPER_CASE off, do upper case letters work...

    With UPPER_CASE off, do upper case letters work correctly when using the SHIFT key?

    With UPPER_CASE on, are the odd characters consistent for each given keypress? For example, can you tell what...
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    I have previously dumped the three PROMs on the...

    I have previously dumped the three PROMs on the NorthStar SD controller and configured the dumps for programming here:...
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    I’ve used “Hobby ROMs” in the past for TTL PROMs...

    I’ve used “Hobby ROMs” in the past for TTL PROMs and for programming. They were great to work with. They even programmed and mailed me another set of parts for free after I sent wrong data for the...
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    Maggi, A gentleman in Germany has contacted me...

    Maggi,

    A gentleman in Germany has contacted me about an F8 cross assembler that runs on the Mostek AID-80F and SYS-80FT computers. The cross assembler ends up being on your “Olympia” FLP-80 disk...
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    I’m confused then. I was under the assumption you...

    I’m confused then. I was under the assumption you had working Horizon computers, right?

    “4. I do have a couple of working Northstar Horizons with hard sector media - are they boot compatible ?”
    ...
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    Can you boot into CP/M on your Horizon? If so,...

    Can you boot into CP/M on your Horizon? If so, then you shouldn’t have to type in a loader to get PC2FLOP onto your machine. Let me know if you can run CP/M on your Horizon. Note that the disk images...
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    The 10 hard sector media is used for both the...

    The 10 hard sector media is used for both the Horizon and the Advantage, but the Horizon disks will not boot an Advantage computer. However, you can use your Horizon computer to write bootable disks...
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    I’d think it’s not safe to assume that A16-A23...

    I’d think it’s not safe to assume that A16-A23 are driven high at all times, and therefore, the “equal” output of U5 cannot be assured to be low at all times even if S2-2 through 9 are left open.
    ...
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    I guess I don't follow what you were trying to...

    I guess I don't follow what you were trying to trouble shoot then. If you know which 2K block wasn't working, then the diagram on PDF page 14 shows which specific 6116 that is.

    Mike
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    See pdf page 14 (manual page 15) here:...

    See pdf page 14 (manual page 15) here:...
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    Several years ago I created a patched version of...

    Several years ago I created a patched version of Altair Extended BASIC that will run on a Z80 CPU. You can see the condition code work that had to be done in the PATCHES.ASM file.
    ...
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    Yes, Altair 4K BASIC v3.2 does wrap and clobber...

    Yes, Altair 4K BASIC v3.2 does wrap and clobber itself with 64K of RAM. They fixed that in version 4.0.

    Mike
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    Even when "working," the 4K DRAM board you have...

    Even when "working," the 4K DRAM board you have was still very problematic. It also required a change to the deposit timing one-shot on the front panel PCB. If that board came with your system, that...
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