gtpi1m1cSystem Installation Support Reference

Fast Link Macro

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

  1. 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.
  2. See User Exit Routines - Common Entry Conditions.
  3. 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.