INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET TAB SETTINGS
        AX = 0003h subfn 08h
        DS:BX -> argument block (see below)
Return: AX = status (see AX=0003h/SF=00h)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=07h

Format of argument block:
Offset  Size    Description
 00h    BYTE    session ID (00h)
 01h    BYTE    08h (function "get tab settings")
 02h    WORD    pointer to 80-byte buffer in caller's current DS
                each byte set to 00h if no tab, 01h if tab at that position

.