INT 68 - APPC/PCIBM PC - TP STARTED AH = 03h subfn 2400h DS:DX -> control block (see #03699) Return: control block updated Format of APPC/PCIBM PC "TP Started" control block: Offset Size Description (Table 03699) 00h 12 BYTEs reserved 0Ch WORD 2400h (verb "TP Started") 0Eh 6 BYTEs 00h 14h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. (big-endian) return code (see #03668) 18h WORD 00h 1Ah 8 BYTEs (big-endian) logical unit ID 22h 8 BYTEs (big-endian) TP ID