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Type: Posts; User: Trixter

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  1. 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.
  9. 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...
  10. 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...
  11. 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.
  13. Time to close this thread and open a new one for...

    Time to close this thread and open a new one for just memory upgrading.
  14. Works on 5160, fails on 5155 for me too. ...

    Works on 5160, fails on 5155 for me too. Interesting... Probably a bug in the "determine what this machine is" code, which reads the Model ID byte in ROM.
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    Sticky: For one possible answer to this question, see the...

    For one possible answer to this question, see the picture of six people displayed in the demo 8088 MPH right before the end credits. That specific implementation only takes up half the screen, and...
  16. If the XT is 4.77 MHz, outrun will not run at a...

    If the XT is 4.77 MHz, outrun will not run at a playable framerate under SIMCGA (this is not a slam on SIMCGA, just a statement of fact).
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    That is very much NOT the program I was thinking...

    That is very much NOT the program I was thinking of, but is a very interesting footnote in computer history that I was not aware of. Something tells me they didn't win the lawsuit.
  18. 256K is enough to run some mTCP programs, but not...

    256K is enough to run some mTCP programs, but not necessarily all of them? Either way, you've been getting strange RAM-related errors, so I think it's time to bite the bullet and take out all the...
  19. How much RAM is currently installed?

    How much RAM is currently installed?
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    You'd probably find better success selling on...

    You'd probably find better success selling on ebay -- I'll never get rid of my Santa Cruz because I always found it to be more compatible than the Audigy line (Audigy had driver crashes for me during...
  21. You shouldn't guess; I'd suggest a quick TCP/IP...

    You shouldn't guess; I'd suggest a quick TCP/IP primer or introduction if you need background on TCP/IP networking. It's basic knowledge people should know these days.

    Here's the super-quick...
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    If I ever find the answer to that program whose...

    If I ever find the answer to that program whose name escapes me, I'll update this thread. It's the true, correct answer to your question. It was effectively a text-based hypercard.

    Did you try...
  23. https://www.facebook.com/groups/BBPCGC

    https://www.facebook.com/groups/BBPCGC
  24. This question is better asked on the BBPCG...

    This question is better asked on the BBPCG facebook group (or Sierra Gaming World facebook group) as there are software collector experts there.
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    The 5170 and 5162 are nearly identical systems...

    The 5170 and 5162 are nearly identical systems with nearly identical BIOSes and motherboards. So in this context, they're identical (the XUB bug has only been observed on both 5170 and 5162 systems).
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