INT 21 - bitFOSSI - INSTALLATION CHECK
AH = 2Bh
CX = 6269h ('bi')
DX = 7449h ('tI')
Return: AL = FFh if not installed
AL = 53h ('S') if bitFOSSI is installed
CX = 444Eh ('DN')
DX = 2D46h ('-F')
ES = resident code segment
ES:DI -> identification data
Program: bitFOSSI is a revision 5 FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. driver for ???'s ISDN board
SeeAlso: AH=2Bh/CX=6269h"bitFOSS",INT 11/AH=BCh