IBM SC33-1683-02 - Manual (Page 216)

SRP_ERROR_FP_REGS
An area describing the contents of the floating point
registers at the time of the abend. It contains:
SRP_FP_REG_0
FP register 0
SRP_FP_REG_2
FP register 2
SRP_FP_REG_4
FP register 4
SRP_FP_REG_6
FP register 6.
Notes:
1. If flag SRP_NOT_CICS_RB is set, SRP_CICS_ERROR_DATA
describes the last thing that CICS did, prior to the abend;
SRP_SYSTEM_ERROR_DATA describes the last thing that the system
service (for example, VTAM, VSAM, or MVS) did.
2. The format of SRP_ERROR_DATA is shown in the CICS Data Areas
manual.
Return codes
UERCNOCA
Abnormally terminate the task with abend code ‘ASRB’. Do not
cancel any program-level abend exits that are associated with this
task.
UERCCANC
Abnormally terminate the task with abend code ‘ASRB’. Cancel any
program-level abend exits that are associated with this task.
UERCCICS
Abnormally terminate CICS.
XPI calls
Because CICS invokes the exit XSRAB in an error environment, you can
only use a subset of the XPI calls.
Only TRACE_PUT is available for general use.
You can use WAIT_MVS, but only after the exit program has determined
(from the SRP_CICS_CODE and SRP_USER_CODE fields) that the abend
has occurred in user application code, and not in CICS code.
system recovery program exit
184 CICS TS for OS/390: CICS Customization Guide