IBM SC34-6814-04 - Manual (Page 407)

* The parameter list itself, in name APIQ_EIB, is used to hold the
address.
RSA(name4 | (Rn | * )
returns the address of the register save area for the current task.
name4
The name of a fullword area that is to receive the address of the
register save area.
(Rn) A register that is to receive the address of the register save area.
* The parameter list itself, name APIQ_RSA, is used to hold the address.
SYSEIB(name4 | (Rn) | *)
returns the address of the system EXEC interface block of the current task.
name4
The name of a fullword area that is to receive the address of the
system EXEC interface block.
(Rn) A register that is to receive the address of the system EXEC interface
block.
* The parameter list itself, name APIQ_SYSEIB, is used to hold the
address.
TCTUA(name4 | (Rn) | *)
returns the address of the terminal control table user area (TCTUA) for the
current task.
name4
The name of a fullword area that is to receive the address of the
TCTUA.
(Rn) A register that is to receive the address of the TCTUA.
* The parameter list itself, name APIQ_TCTUA, is used to hold the
address.
TCTUASIZE(name4 | (Rn) | *)
returns the length in bytes of the TCTUA for the current task.
name4
The name of a 4-byte area that is to receive the length in bytes of the
TCTUA.
(Rn) A register that is to receive the length of the TCTUA.
* The parameter list itself, name APIQ_TCTUASIZE, is used to hold the
length of the TCTUA.
TWA(name4 | (Rn) | *)
returns the address of the transaction work area.
name4
The name of a fullword area that is to receive the address of the TWA.
(Rn) A register that is to receive the address of the TWA.
* The parameter list itself, name APIQ_TWA, is used to hold the address
of the TWA.
TWASIZE(name4 | (Rn) | *)
returns the length, in bytes, of the transaction work area (TWA).
Chapter 3. The user exit programming interface (XPI) 385