INT 68 - APPC/PCIBM PC - CONNECTION CONTROL - PREPARE TO RECEIVE
	AH = 02h subfn 0A00h
	DS:DX -> control block (see #03690)
Return: control block updated
SeeAlso: AH=02h/SF=0900h,AH=02h/SF=0B00h


Format of APPC/PCIBM PC "Prepare_to_Receive" control block:
Offset	Size	Description	(Table 03690)
 00h 12 BYTEs	reserved
 0Ch	WORD	0A00h (verb "Prepare_to_Receive" or "MC_Prepare_to_Receive")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #03681)
 16h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(big-endian) error code (see #03682)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(big-endian) conversation ID
 26h	BYTE	type (0=SYNC_LEVEL, 1=FLUSH)
 27h	BYTE	locks (0=short, 1=long)