z/OS TSO/E Customization
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Restrictions and limitations

z/OS TSO/E Customization
SA32-0976-00

  • Although INMxxxxR exits can execute in 31-bit addressing mode, the addresses the exits return to TRANSMIT or RECEIVE must point to virtual storage below 16 MB. TRANSMIT and RECEIVE both execute in 24-bit addressing mode.
  • Because the TRANSMIT and RECEIVE exits are APF-authorized, use modesets carefully to ensure that integrity is maintained.
Parent topic: Programming considerations

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