Mapping of parameters for AMODE (64)

The mapping of the parameter areas is supplied by the interface definition file CUN4BBID. This file is shipped in the SYS1.MACLIB data set and contains the length of each parameter and any boundary alignment that may be necessary.

Table 1. Mapping of parameters in HLASM for bidi AMODE (64)
Offset Dec	Offset Hex	Type	Length in Bytes	Boundary	Name	Description
0	(0)	STRUCTURE	100	DWORD	CUN4BBPR	Parameter Area
0	(0)	UNSIGNED	4		CUN4BBPR_Version	Parameter Area VERSION
4	(4)	UNSIGNED	4		CUN4BBPR_Length	Parameter area Length
8	(8)	ADDRESS	8		CUN4BBPR_Src_Buf_Ptr	Source buffer pointer
16	(10)	CHARACTER	4		*	Reserved for 64 bit
20	(14)	UNSIGNED	4		CUN4BBPR_Src_Buf_ALET	Source buffer ALET
24	(18)	UNSIGNED	8		CUN4BBPR_Src_Buf_Len	Source buffer length
32	(20)	ADDRESS	8		CUN4BBPR_Targ_Buf_Ptr	Target buffer pointer
40	(28)	CHARACTER	4		*	Reserved for 64 bit
44	(2C)	UNSIGNED	4		CUN4BBPR_Targ_Buf_ALET	Target buffer ALET
48	(30)	UNSIGNED	8		CUN4BBPR_Targ_Buf_Len	Target buffer length
56	(38)	ADDRESS	8		CUN4BBPR_Wrk_Buf_Ptr	Work buffer pointer
64	(40)	CHARACTER	4		*	Reserved for 64 bit
68	(44)	UNSIGNED	4		CUN4BBPR_Wrk_Buf_ALET	Work buffer ALET
72	(48)	UNSIGNED	8		CUN4BBPR_Wrk_Buf_Len	Work buffer length
80	(50)	UNSIGNED	4		CUN4BBPR_CCSID_Src	CCSID Source
84	(54)	UNSIGNED	4		CUN4BBPR_CCSID_Trg	CCSID Target
88	(58)	BITSTRING	1		CUN4BBPR_Flag1	FLAG Byte 1 set by caller
88	(58)	`1... ....`	1		CUN4BBPR_Bidi_Context	Bidi Context: `0=Context LTR 1=Context RTL`
88	(58)	`.1.. ....`	1		CUN4BBPR_Bidi_ImpAlg	Bidi Implicit Alg: `0=Algor Basic 1=Algor Implicit`
89	(59)	CHARACTER	3		*	Reserved
92	(5C)	CHARACTER	8	WORD	CUN4BBPR_RC_RS	Return/reason code
		UNSIGNED	4		CUN4BBPR_Return_Code	Return code
		UNSIGNED	4		CUN4BBPR_Reason_Code	Reason code
100	(64)	CHARACTER	0		CUN4BBPR_End	End of CUN4BBPR