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Type: Posts; User: pcdosretro

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    And you're obviously a Linux fanboy and a...

    And you're obviously a Linux fanboy and a dumbass. One of the reasons I dislike Linux so much is due to the extreme fanboyism. At least you're no longer attempting to argue that ls -lR *.c does what...
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    See post #112 then take a step back and think...

    See post #112 then take a step back and think about your response. In the case of ls vs. dir I gave a definitive example of where the file recursion simply does not work the same and is better in DOS...
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    I haven't used DR DOS much but we had a DOS API...

    I haven't used DR DOS much but we had a DOS API tester at IBM and DR DOS 6.0 passed every function test and the internal tables were largely the same. Consider that DR DOS worried Microsoft enough to...
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    Example: ls -lR *.c - does NOT do what I want (at...

    Example: ls -lR *.c - does NOT do what I want (at least not in bash on my Raspberry Pi) - dir /s *.c does do what I want in DOS 5+ and Windows. How much more clear do I have to be ? People keep going...
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    DIR /S filespec lists all of the files matching...

    DIR /S filespec lists all of the files matching filespec in the current directory and all subdirectories under it. It also shows the file counts and bytes used totals; ls does not. DIR /S was added...
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    I've run into multiple things which I can do in...

    I've run into multiple things which I can do in DOS/Windows that I can't do in Linux and also things in Linux that annoy me but I'm not going to entertain a bunch of Linux fanboys by spending time...
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    How well does CP/M handle subdirectories ? Why...

    How well does CP/M handle subdirectories ? Why ask such a question when you already know the OS is too old to support that feature ?



    Again I do not like Linux/Unix. Stop trying to sell me on...
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    I've never seen a case where DIR /S didn't work...

    I've never seen a case where DIR /S didn't work properly. Linux ls has recursion but it's not as good as DOS/Windows. DIR /S filespec (e.g. dir /s *.c) works as expected in DOS 5+ and Windows but...
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    I can think of several things I can do in...

    I can think of several things I can do in DOS/Windows command shell (and its standard utilities) that can't be done in Linux shells (e.g. bash the most common). Anyway I really don't like Linux and...
  10. Try the attached setaudio.com which I patched for...

    Try the attached setaudio.com which I patched for my CMI8738 soundcard. I recall some games originally hung in a loop because one of the CMI8738 registers wasn't initialized properly which caused the...
  11. When I had a CMI8738 soundcard I used it in an...

    When I had a CMI8738 soundcard I used it in an Intel chipset PC and later an AMD chipset PC. It worked on both but I do recall having to patch SETAUDIO.COM because it wasn't initializing the card...
  12. As long as the motherboard chipset supports ISA...

    As long as the motherboard chipset supports ISA DMA then you can get a soundcard which uses the CMI8738 which has hardware Sound Blaster Pro support. You would only need to run a non-resident...
  13. There's no need for apology, I was just...

    There's no need for apology, I was just clarifying.

    EMM386 should work the same though running in real mode is always faster than running in V86 mode.
  14. I only worked on PC DOS 7.0 - I started with PC...

    I only worked on PC DOS 7.0 - I started with PC DOS 6.3 and the end result was PC DOS 7.0. I had nothing to do with PC DOS 2000 though I did analyze the differences -...
  15. Those sites are wrong, I have an authoritative...

    Those sites are wrong, I have an authoritative list of DOS versions here - https://sites.google.com/site/pcdosretro/dosver and here - https://sites.google.com/site/pcdosretro/doshist
    Basically you...
  16. The byte at C000:0002 is the size of the video...

    The byte at C000:0002 is the size of the video BIOS in 512-byte units (example 40h = 32KB). You can use DEBUG to display this (D C000:2). I have never seen a video BIOS ROM exceed 64KB.

    You should...
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    I used PCs more than anything so of course I used...

    I used PCs more than anything so of course I used DOS, OS/2 and Windows. I don't like the Linux command shells at all; there too many things which are doable in the DOS/Windows shells that are a pain...
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    The checks were added in DOS 3.20, prior versions...

    The checks were added in DOS 3.20, prior versions had no validity checks at all. I just checked DOS 3.1 and there is no such code in there. My guess is that they added the standard E9h/EBh validity...
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    I'm not familiar with the DEC Rainbow or any of...

    I'm not familiar with the DEC Rainbow or any of the non-PCs. Any truly compatible PC would start boot execution at 0. Anyway that boot disk wouldn't pass the check. Presumably MSDISK for that system...
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    I recall reading that the NYC Metrocard system...

    I recall reading that the NYC Metrocard system used OS/2 and I know some ATMs used it. I suppose there are other corporate customers who ascribed to the "no one got shot for choosing IBM" mantra used...
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    Some commercial entity is actually updating the...

    Some commercial entity is actually updating the OS for a long dead system ? Really ?!? The audience couldn't be more than a few hundred users.

    I wonder who the audience is for ArcaOS (basically...
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    Many PC booter games used their own boot code but...

    Many PC booter games used their own boot code but everything always started with a jump (EBh or E9h). I know of no systems which didn't begin execution of boot code with the first byte.

    DR-DOS...
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    Yes I know that 69h is JNS on the 8086/8088 but...

    Yes I know that 69h is JNS on the 8086/8088 but that code was added in 1985 when 286 PCs were available. Also I'm not buying that the code was done to crash a boot since the standard DOS boot code...
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    EBh xx 90h is far more common than E9h. In fact...

    EBh xx 90h is far more common than E9h. In fact every version of the PC DOS boot code uses EBh as does every retail version of MS-DOS 5.0 and later and the packaged product MS-DOS 3.20-4.01 versions....
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    Why would they put this in shipping code instead...

    Why would they put this in shipping code instead of having it in a test build and why wouldn't the comments say that instead of "direct jump" ?
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