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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Addr Extended BIOS Data Area, Get   Int. 15H, Funct. C1H
  Alarm, Set                          Int. 1AH, Funct. 06H
  Allocate Memory Block               Int. 21H, Funct. 48H
  Allocation Strategy, Get or Set     Int. 21H, Funct. 58H
  Auxiliary Input                     Int. 21H, Funct. 03H
  Auxiliary Output                    Int. 21H, Funct. 04H
                                    -♦-