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Type: Posts; User: Trixter

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  1. Replies
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    QRAM attempts everything it can sense, and most...

    QRAM attempts everything it can sense, and most of the command-line options are to tell it NOT to do something. If it detects supported shadow RAM chipsets, it will do the needful.
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    I've run my own mail server since 1998, after...

    I've run my own mail server since 1998, after permanently losing touch with online friends having changed email addresses 3 times in 6 years due to job moves and folding companies. I wanted a...
  3. This is the one I tested with: ...

    This is the one I tested with: ftp://ftp.oldskool.org/pub/misc/Software/Games/booters/Belowrot.zip
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    After attempting this stuff on and off for years,...

    After attempting this stuff on and off for years, dorking around with QRAM, EMS cards, etc. on my 5160, I finally have 704K free in PC-DOS 7 with a lotech RAM card providing 64K at A000 only. My...
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    Some poking around VIDRAM.COM shows it going to...

    Some poking around VIDRAM.COM shows it going to the List of Lists and then walking the MCBs. Without digging further, I think all it's doing is just modifying the last MCB from Z to M and then...
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    Yes. Replacing these with direct screen RAM...

    Yes. Replacing these with direct screen RAM writes will cure this.
  7. I tried the booter version on my 5155 and got...

    I tried the booter version on my 5155 and got instant failure, when the same disk worked on a 5160 without issues. So not sure this is resolved, other than to say that BTR has issues on 5155 systems.
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    Not a problem since I'm not running XUB on the...

    Not a problem since I'm not running XUB on the system in question.
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    Ah, found the problem. Those are the only DOSes...

    Ah, found the problem. Those are the only DOSes I prefer to run. Maybe I'll try MS-DOS 6.22 as a test.

    VIDRAM from QRAM would work if I had a VGA card in the system. I can put RAM at A000 but...
  10. Welcome to the forums. For getting a handle on...

    Welcome to the forums. For getting a handle on identifying boards, you usually need to provide hi-res pictures of said boards. Determining fair prices is usually done via searching SOLD ebay...
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    Sorry, I thought you were implying the creation...

    Sorry, I thought you were implying the creation of a board that used one mechanism to backfill and another mechanism to provide UMBs and EMS.
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    The files contained in that upload are not valid...

    The files contained in that upload are not valid .EXE files. They start with a garbage character before the MZ header, and even if you remove the garbage character, they're still not valid EXE...
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    AKA "an EMS 4.0 board" (backfilling and mapping...

    AKA "an EMS 4.0 board" (backfilling and mapping are core functions)
  14. So, this is a complicated topic, and it comes...

    So, this is a complicated topic, and it comes down to what kind of game you're writing and what your expectations of performance will be. Because PCs are not all the same speed, it is not a good...
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    Dammit. I wonder if I can cancel my LTEMS order....

    Dammit. I wonder if I can cancel my LTEMS order. I recall bringing this up during development but I must have made assumptions.

    I've been trying to extend DOS past 640K on my 5160 and have been...
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    IMO, it's more effect to load the driver and then...

    IMO, it's more effect to load the driver and then load QRAM so that QRAM can extend 640K to 736K, assuming the LIM EMS board allows mapping into A000 and beyond (Intel boards don't, I've...
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    You could upload the program somewhere for people...

    You could upload the program somewhere for people to try to verify, then fix, your results.
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    If you only have a 10Mb drive, run DOS 2.11 and...

    If you only have a 10Mb drive, run DOS 2.11 and you'll get even more free memory back.

    If you really want to maximize free DOS RAM, run DR-DOS 6 and load HIDOS.SYS and you'll get ~612K free, as it...
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    What is your full 5150 hardware configuration?

    What is your full 5150 hardware configuration?
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    Or, the user could run unp and just unpack the...

    Or, the user could run unp and just unpack the executable (after copying it off of the original disk, of course -- do not write anything to the original program disks!)
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    Please explain.

    Please explain.
  22. I'd forgotten about that. :-) Back in 1995,...

    I'd forgotten about that. :-)

    Back in 1995, a friend clued me in to the best way to handle key-down scancodes: Don't try to replace the keyboard interrupt at all, but instead let it run and...
  23. Aha, according to...

    Aha, according to http://www.minuszerodegrees.net/5155/misc/5155_basics.htm "The 5155 motherboard does not have a keyboard controller chip. Instead, it uses discrete components" with schematic at...
  24. Here's the code for the test: seg000:0341 B8...

    Here's the code for the test:


    seg000:0341 B8 00 F0 mov ax, 0F000h
    seg000:0344 8E C0 mov es, ax
    seg000:0346 ...
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    Sticky: You're welcome, but EffortPosts are exhausting;...

    You're welcome, but EffortPosts are exhausting; please be more concise next time. To wit:



    Roughly yes.



    Correct.
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