PI87699: AFTER APPLYING APR PI62275 FOR Z14 HARDWARE, CAN'T GENERATE Z13 INSTRUCTIONS USING MACHINE(ZSERIES-7) OR MACHINE(ZS7)

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After applying APR PI62275 for Z14 hardware, can't generate
  Z13 instructions using MACHINE(ZSERIES-7) or MACHINE(ZS7)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of HLASM on z/OS, z/VM, z/VSE and      *
  *                 Linux                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: MACHINE(ZSERIES-7) option rejected      *
  *                      after APAR PI62275.                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When support for MACHINE(ZSERIES-8) and MACHINE(ZS-8) was added
  for APAR PI62275 in support of the z14, a slip in the code
  changes meant that these machine values effectively replaced the
  ZSERIES-7 and ZS-7 values instead of adding new ones, so it was
  no longer possible to select the ZS7 (z13) instruction set via
  the MACHINE keyword. This problem could be circumvented by using
  the option OPTABLE(ZS7) instead, as the MACHINE option simply
  provides an alternative way to set the OPTABLE option via a
  look-up table.
  
  In addition, while checking this area of the code, it was noted
  that checks for values ZS-7 and ZS-8 were using the length of
  the constant value rather than the length of the specified
  value.  This meant that spurious longer values starting with
  these strings would also be incorrectly accepted, for example
  ZS-88 would be accepted for ZS-8.
  

Problem conclusion

• A misplaced change was corrected so that MACHINE(ZSERIES-7) and
  MACHINE(ZS-7) are now accepted again. Also, checks for the
  MACHINE values ZS-7 and ZS-8 have been corrected to avoid
  accidentally accepting longer values which start with these
  strings.
  
  Note that OPTABLE is the direct way to select the instruction
  set in HLASM, and is supported both as an invocation parameter
  (in the PARM string and the ASMAOPT file) and on *PROCESS and
  ACONTROL statements. The MACHINE option provides an alternative
  way to specify the instruction set at invocation time only,
  and is converted internally to the equivalent OPTABLE setting.
  

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:

  102PC01 UI50592 UI50593 UI50594

Modules/Macros

• ASMAINFO ASMA01   ASMA9Z
  

Fix information

• Fixed component name

  HLASM MVS, VM &

• Fixed component ID

  569623400

Applicable component levels

• R160 PSY UI50593

     UP17/09/27 P F709

• R360 PSY UI50592

     UP17/09/27 P 1709

• R689 PSY UI50594

     UP17/09/28 I 1000

Fix is available

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