Use this system macro to identify which communication keypoint data is to
be prepared for an update to the file-resident copy. The keypointable
data is specified in the macro expansion.
Required Authorizations
|
Key0
| Restricted
| System
| Common Storage
|
| X
|
|
|
Format
Notes:
- symbol1
- label
- A symbolic name can be assigned to the macro statement.
- TYPE=symbol1
- A symbolic keypoint reference label (K0 through K5) must be
specified. The symbolic label Kx is used to identify specific
keypointable data as indicated by the alphameric value of x.
- K0
- Line Status Keypoint
- K1
- Terminal Interchange Status Keypoint
- K4
- Communication Control Unit Keypoint
- K5
- Symbolic Line Status Table Keypoint.
Entry Requirements
- R9 must contain the address of the ECB being processed.
- For a line, terminal interchange, or keypoint directly controlled by the
TPF system, the symbolic line number of the communication line must be
right-justified in R14.
- For a communication control unit keypoint, the symbolic communication
control unit number must be right-justified in R14.
- For a keypoint of the first word of the symbolic line status table (SLST),
the symbolic line number must be right-justified in R14.
Return Conditions
- Control is returned to the next sequential instruction (NSI).
- The contents of R14 and R15 are unknown. The contents of all other
registers are preserved across this macro call.
Programming Considerations
- This macro can be run on the main I-stream only.
- This macro records a request to keypoint communication data residing in
host core storage. The request will be honored by the system
communication keypoint program.
Examples
None.