RB>
  >                     I can do very fast textmode video reads and writes
  > by accessing the video memory at B800:0000.
RB>

  Fast is a relative term, especially when you consider that text-mode
  video RAM is often accessed at a far slower speed than normal RAM.

  But putting that issue aside ...

RB>
  > Also, how do interrupts work under OS/2? Under speed
  > pascal/2, i tried to put in the following code:
  >
  > ASM
  >    mov    ah, 1
  >    mov    ch, 3
  >    xor    cl, cl
  >    int    10h
  > END;
RB>

  It wouldn't have worked, even had Speed Pascal been able to compile
  it.  You don't mess around with registers and interrupts and all of
  that rubbish when calling the OS/2 API.  You simply make function
  calls.

  You should have header files, units, or whatever, supplied with your
  compiler that declare all of the functions in the OS/2 API.  Read the
  documentation.

  > JdeBP <
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