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  1. Thread: Real Life Jobs

    by VileR
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    50
    Views
    4,141

    Lead QA Automation engineer. Working in IT...

    Lead QA Automation engineer. Working in IT certainly hasn't dampened my interest in vintage computing -- if anything, it has strengthened it, since it keeps me very much aware of the contrast...
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    What machine is it? Most of those faster XT...

    What machine is it? Most of those faster XT clones had built-in ways for slowing them down, for the sake of compatibility. If not a turbo button, then a key combination.

    Petzold's SLOWDOWN won't...
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    318

    Yep -- also, there's a patch for DOSBox...

    Yep -- also, there's a patch for DOSBox to capture screens in reenigne's CGAD format.

    I've found that it's quite convenient if you want to easily prepare screenshots for later display on real CGA...
  4. Thread: The Eagle PC

    by VileR
    Replies
    9
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    579

    Hah, interesting. The Eagle PC CGA character set...

    Hah, interesting. The Eagle PC CGA character set is indeed identical to IBM's, but the Spirit one? Someone was being creative. :)

    I should add these to the hardware fonts archive included with...
  5. Thread: The Eagle PC

    by VileR
    Replies
    9
    Views
    579

    Yep! I think this may be the first clone CGA I...

    Yep! I think this may be the first clone CGA I see where the artifact colors are dead-on. (The Compaq CGA was good too, but I don't recall if it was 100% accurate or just very close.)
    In fact it's...
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    Chuck, how about vDOS (https://www.vdos.info/) or...

    Chuck, how about vDOS or vDosPlus?

    Seems like you'd still need WINE for those, but they're specifically designed for scalable fonts, clipboard integration, and other such things (despite being...
  7. Replies
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    2,630

    I got one of those a while ago (Matias Quiet Pro...

    I got one of those a while ago (Matias Quiet Pro keyboard) to use in the office. It *is* quiet, and the tactility is very nice, but the switches have had issues straight out of the box (two or three...
  8. Appreciate the tips. I had a go at a few of...

    Appreciate the tips. I had a go at a few of these methods under DOS 6.22, on real hardware (no removable drives) and PCem (with an emulated CD-ROM):


    Int 21h/AH=29h (DOS 1+ - parse filename...
  9. Whoops - I missed that in the other thread's last...

    Whoops - I missed that in the other thread's last post, thanks for the heads up.

    That KB article might help explain your finding with 6.22, too. I'd imagine that around 3.2 (or later), the need...
  10. I don't have any such removable drives to test on...

    I don't have any such removable drives to test on the real hardware (to rule out the delays), hence my asking here. :) I guess PCem, 86box or DOSBox-X might emulate them a little more accurately...
  11. Thanks, I'll have to give that a test with DOS -...

    Thanks, I'll have to give that a test with DOS - I wonder if it's equivalent to the function 29th (FCB) method for my purposes. But yes, I don't need to know if the drive is removable; I just need a...
  12. Finding all valid DOS drive letters (unobtrusively)

    I'm looking for a way to query DOS and enumerate all available drives in the system. My target is MS/PC-DOS 3.0 and above.

    For floppy drives, the sample code at http://www.fysnet.net/getdrvs.htm...
  13. AFAIK on a color EGA monitor, a real IBM EGA (not...

    AFAIK on a color EGA monitor, a real IBM EGA (not sure about clones) will use an 8-dot character clock for text mode = 640 dots wide. Only on a monochrome monitor (where I believe the BIOS actually...
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    542

    Much less frequently than that, even. Just some...

    Much less frequently than that, even. Just some setup code when changing video pages/toggling options in a program (a font editor). My only concern is unseemly glitches in case some changes become...
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    542

    The thread link leads me back to this one, but I...

    The thread link leads me back to this one, but I think I found the one you were thinking of: http://www.vcfed.org/forum/showthread.php?45197-IO-Delays-on-8088-class-computers, is that it?

    Lots of...
  16. Replies
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    837

    Here's something similar: a CGA card sold in...

    Here's something similar: a CGA card sold in Greece, with a monster 32 KB character generator, and some extra wiring/connectors (probably to bank-switch the contents). Not multilingual; it just has...
  17. Replies
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    542

    Excellent, thank you. Appreciate the pointers to...

    Excellent, thank you. Appreciate the pointers to vgaman.txt and to FRACTINT, too -- saved in my reference list.

    That kind of leads me to another question, however - the (supposed) necessity to...
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    *shrugs* VOGONS, which uses phpBB, is still...

    *shrugs* VOGONS, which uses phpBB, is still extremely fast and responsive (more so than XenForo's own Community section on my end), and isn't missing much functionality that would be needed in forum...
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    Changing VGA clocking modes

    Here is what I get from available documentation. Before making changes to the VGA clocking mode (i.e. doubling/halving the character clock for 40/80 column operation, or toggling 8/9 dots per...
  20. Very cool find. Can't help with a manual, but...

    Very cool find. Can't help with a manual, but here's a nice article from PC Tech Journal which I happened to bump into earlier today: https://archive.org/details/PC_Tech_Journal_vol03_n02/page/n57...
  21. Thread: Password hell

    by VileR
    Replies
    19
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    1,485

    I'm told that this is a fairly popular approach...

    I'm told that this is a fairly popular approach among security-minded folks these days: as far as possible, never use a permanent password; just go through the "forgot password" process whenever you...
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    1,713

    Well, what graphics hardware do you have in...

    Well, what graphics hardware do you have in there? I could be wrong but AFAICT the MBC-775 was only "sort-of" PC-compatible, as was the MBC-55x; the 55x had its own not-really-compatible video...
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    I don't know if I'd interpret that as a specific...

    I don't know if I'd interpret that as a specific precaution "against" the .COM format; it also works the other way around - rename a .COM to .EXE and run it, DOS will handle it no-questions-asked. ...
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    That's one disheartening sight... makes what...

    That's one disheartening sight... makes what happened to my 5160 [pics] look like a gentle caress in comparison, and I thought *that* took extraordinary levels of incompetence.

    I honestly don't...
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    I suppose that the ultimate in 'emulator...

    I suppose that the ultimate in 'emulator accuracy' would be for someone to record the impulse responses of different PC cases, feed them into a convolution reverb VST plugin and use that to simulate...
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