OA41231: INCORRECT USE OF LTGR WHEN TESTING 32-BIT VALUES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Code analysis has shown some module which incorrectly use LTGR
  to test bit 0 of a 32-bit register (i.e. bit 32 of the
  corresponding 64-bit register)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All TDMF 5.4 users                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: Modules have been identified which      *
  *                      incorrectly use 64-bit instructions     *
  *                      on 32-bit register values.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The incorrect usage if 64-bit instructions on 32-bit register
  values may lead to unpredictable results.
  

Problem conclusion

• The identified instructions need to be replaced by their
  32-bit counterparts.
  

Temporary fix

Comments

APAR Information

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

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

  UA67859

Modules/Macros

• GTDRTNM  GTDSTK
  

Fix information

• Fixed component name

  SOFTEK TDMF Z/O

• Fixed component ID

  694932A00

Applicable component levels

• R540 PSY UA67859

     UP13/02/05 I 1000

Fix is available

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