gtpi1m1c | System Installation Support Reference |
Exit routine UCCFLX is called at the end of macro processing for fast link
macros, just before returning control to the E-type program that issued the
fast link macro (if the exit point named FLX
is active). Exit point FLX is in CSECT CCNUCL.
General Conditions at Entry
The registers at entry to UCCFLX are:
- R0-R7
- The contents cannot be predicted. The values being returned to the
caller are in the ECB register save area. If the fast link macro
returns a condition code, bits 2 and 3 of R0 contain the condition code that
is being returned.
- R8
- Base of E-type program that issued the fast link macro.
- R9
- Address of the ECB.
- R11-R15
- See User Exit Routines - Common Entry Conditions.
System Conditions at Entry
- System state
- Problem (see Programming Considerations at Entry, item 1)
- System mask
- Unmasked (see Programming Considerations at Entry, item 1)
- Protect key
- Working storage.
- Address Space
- EVM.
Programming Considerations at Entry
- Usually, the system state and system mask are as
stated. However, there can be exceptions if system programs issued
MONTC to get to supervisor state and changed the system mask.
- See User Exit Routines - Common Entry Conditions.
- See User Exit Routines - Common Programming Considerations for other considerations.
Programming Considerations on Return
See User Exit Routines - Common Return Conditions.
General Conditions on Return
See User Exit Routines - Common Return Conditions.