www.delorie.com/djgpp/doc/rbinter/26.html   search  
2120

Category: DOS kernel

INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY

	AH = 20h
Return: AL = 00h
Note:	corresponds to the CP/M BDOS function "get/set default user
	  (sublibrary) number", which is meaningless under MS-DOS
SeeAlso: AH=18h,AH=1Dh,AH=1Eh,AX=4459h

  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2000   by Ralf Brown     Updated Jul 2000