PM00177: ABEND0C7 IEEE INVALID OPERATION ON A FLOATING POINT INSTRUCTION. DXC IS 80. OCCURS AFTER MIGRATING TO CICS/TS 4.1.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You just migrated to CICS/TS 4.1.  You have programs that
  do floating point arithmetic and are compiled with IEEE .
  You are getting an abend0C7 Data Exception with DXC for IEEE
  Exception Condition.  The DXC is x'80' meaning IEEE invalid
  operation.
     This problem happens because the
  IEEE-Invalid-Operation mask bit is unexpectedly set on in the
  FPC register.  This is the X'80' bit in byte 0 of the FPC
  register.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Programs using floating point           *
  *                      arithmetic which have been compiled     *
  *                      with the IEEE option can abend 0C7 on   *
  *                      CICS TS 4.1                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  After migrating to CICS TS 4.1, floating point arithmetic
  programs that have been compiled with the IEEE option can
  incorrectly receive an abend 0C7 with Data Exception DXC for
  IEEE exception.
  This occurs because the IEEE-Invalid-Operation bit is
  unexpectedly set on in the FPC register.
  
  Keywords: abends0C7 abend0C7 s0C7
  

Problem conclusion

• Changes have been made in DFHAPLI1, DFHAPLJ1 and DFHAPLX1 in
  order to correctly save and restore the floating point control
  register.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UK51880

Modules/Macros

• DESLI1   DFHAPLI1 DFHAPLJ1 DFHAPLX1
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R600 PSY UK51880

     UP09/11/24 P F911

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.