INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY
AH = 1Eh
Return: AL = 00h
Note:   corresponds to the CP/M BDOS function "set file attributes" which was
meaningless under MSDOS 1.x
SeeAlso: AH=1Dh,AH=20h

See also: 2118

211E - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY