The 64-bit parameter list should be used when you have E15, E32, or E35 user exits that
run in AMODE64 and would like to pass records with 64-bit addresses back to MFX. These
exits can either reside in the invoking program or, for E15 and E35, be in the load
modules that are defined on the MODS statement using the N64 link-editing code.
To use the 64-bit parameter list, you must use either SORT64 or ICEMAN64 as the entry
point name in the system macro that you use to invoke MFX. A 64-bit Register 1 should
point to the parameter list.
The parameter list is X’88’ long. It defines the same information as is defined in the
31-bit parameter list, with the addition of 64-bit addresses and exit AMODEs for some
fields. Except for the flag bit indicators, the entries are each 8 bytes, which allows
for 64-bit addresses for some entries. The MFX control statement images and an optional
ALTSEQ translation table can reside above the bar (that is, have a 64-bit address). The
other entries have binary zeros in the first 4 bytes.
Table
52 provides an explanation of the contents of the extended parameter list.
All bits and bytes indicated as reserved should be set to zero when creating the
parameter list. All full 8-byte addresses in the list are either a 64-bit address, or a
24 or 31-bit address left-padded with binary zeros. For the exit AMODE flag bits,
exactly one of the bits should be set for each exit whose address is specified in the
parameter list. The exit AMODE flag bits do not apply to exits which are defined in a
MODS statement.
Table 1. The Extended Parameter List
|
Displacement
Hex Decimal
|
Length
|
Bit
|
Field
|
|
0
|
0
|
8
|
|
C’PL64SORT’ (identifier)
|
|
8
|
8
|
1
|
X’80’
|
AMODE 24 for E15 Exit or E32
|
|
X’40’
|
AMODE 31 for E15 Exit or E32
|
|
X’20’
|
AMODE 64 for E15 Exit or E32
|
|
X’10’
|
AMODE 24 for E35 Exit
|
|
X’08’
|
AMODE 31 for E35 Exit
|
|
X’04’
|
AMODE 64 for E35 Exit
|
|
X’02’
|
AMODE 24 for E18 Exit
|
|
X’01’
|
AMODE 31 for E18 Exit
|
|
9
|
9
|
1
|
X’80’
|
Reserved
|
|
X’40’
|
AMODE 24 for E39 Exit
|
|
X’20’
|
AMODE 31 for E39 Exit
|
|
X’10’
|
Reserved
|
|
X’08’
|
1: E15/E32 64-bit Parameter List
0: E15/E32 31-bit Parameter List
|
|
X’04’
|
1: E35 64-bit Parameter List
0: E35 31-bit Parameter List
|
|
X’02’
|
Reserved
|
|
X’01’
|
Reserved
|
|
A
|
A
|
13
|
|
Reserved
|
|
17
|
23
|
1
|
X’80’
|
1: Using Blocked E15 Exit
|
|
X’40’
|
0: Using Blocked E35 Exit
|
|
X’20’
|
Reserved
|
|
X’01’
|
Reserved
|
|
18
|
24
|
8
|
|
Address of halfword containing length of control statement images,
followed by images (zeros if none)
|
|
20
|
32
|
8
|
|
F’0’, Address of user exit E15 or E32(zeros if none)
|
|
28
|
40
|
8
|
|
F’0’, Address of user exit E35 (zeros if none)
|
|
30
|
48
|
8
|
|
F’0’, Address of user exit address constant (zeros if none)
|
|
38
|
56
|
8
|
|
Address of ALTSEQ translation table(zeros if none)
|
|
40
|
64
|
8
|
|
F’0’, Address of ESTAE area (zeros if none)
|
|
48
|
72
|
8
|
|
F’0’, Address of user exit E18 (zeros if none)
|
|
50
|
80
|
8
|
|
F’0’, Address of user exit E39 (zeros if none)
|
|
58
|
88
|
8
|
|
F’0’, Call identifier (C’nnnn’) (zeros if none)
|
|
60
|
96
|
8
|
|
64-bit Address of user block list parameter area used by blocked E15
and/or E35
|
|
68
|
104
|
32
|
|
Reserved
|
|
Block List Parameters
for E15/E35 User Exits provides an explanation of the E15 and E35 user exit
parameters available in the 64-bit parameter list, which support the transfer of blocks
of records between MFX and the E15/E35 user exits.
Table 2. Block List Parameters for E15/E35 User
Exits
|
Displacement
Hex Decimal
|
Length
|
Bit
|
Field
|
|
Block List Parameters for E15 Exit
|
|
0
|
0
|
8
|
D
|
Address of User Block List Area
|
|
8
|
8
|
8
|
D
|
Maximal length of blocks with records at each return to SORT (for
Block List Type 2 only)
|
|
10
|
16
|
8
|
D
|
Maximal number of blocks with records at each return to DFSORT (for
Block ListType 1 or Type 2)
|
|
18
|
24
|
4
|
F
|
Maximal length of record
|
|
1C
|
28
|
1
|
C
|
Format of record (F-FLR/V-VLR)
|
|
1D
|
29
|
1
|
X
|
Block List Type for 15 exit (1/2/...)
|
|
1E
|
30
|
2
|
XL2
|
Reserved
|
|
Block List Parameters for E35 Exit
|
|
0
|
0
|
8
|
D
|
Address of User Block List Area
|
|
8
|
8
|
8
|
D
|
Maximal length of blocks with records at each return to SORT (for
Block List Type 2 only)
|
|
10
|
16
|
8
|
D
|
Maximal number of blocks with records at each return to DFSORT (for
Block ListType 1 or Type 2)
|
|
18
|
24
|
4
|
F
|
Maximal length of record
|
|
1C
|
28
|
1
|
C
|
Format of record (F-FLR/V-VLR)
|
|
1D
|
29
|
1
|
X
|
Block List Type 1 for 35 exit (1/2/...)
|
|
1E
|
30
|
2
|
XL2
|
Reserved
|
|