INT 14 - X00 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. - DEACTIVATE PORTIBM PC Portable (uses same BIOS as XT) AH = 1Dh DX = port number Return: none Notes: this is a duplicate of AH=05h, so that AH=05h may be made compatible with the PS/2IBM PS/2, any model BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. in a future release ignored if the port was never activated with AH=04h or AH=1Ch SeeAlso: AH=05h"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.",AH=1Ch