Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Lead Byte Table, Get                Int. 21H, Funct. 63H
  Light Pen Position, Get             Int. 10H, Funct. 04H
  Load ROM 8-by-14 Font               Int. 10H, Funct. 11H, Sub. 01H
  Load ROM 8-by-16 Font               Int. 10H, Funct. 11H, Sub. 04H
  Load ROM 8-by-8 Font                Int. 10H, Funct. 11H, Sub. 02H
  Load User Font                      Int. 10H, Funct. 11H, Sub. 00H
  Load User Font                      Int. 10H, Funct. 11H, Sub. 10H
  Lock or Unlock File Region          Int. 21H, Funct. 5CH
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