CICS Extended Addressing Considerations

The CA IDMS interface to CICS supports user programs running above the 16 megabyte line. In order to take advantage of XA enhancements, the customer must be using an XA-compliant compiler.
idms
The CA IDMS interface to CICS supports user programs running above the 16 megabyte line. In order to take advantage of XA enhancements, the customer must be using an XA-compliant compiler.
In addition, the following steps are necessary to implement XA support for CICS programs invoking CA IDMS services:
  1. Assemble IDMSINTC and IDMSCINT using the H Assembler program ASMA90.
  2. Linkedit IDMSINTC as AMODE(31), RMODE(24).
  3. Linkedit IDMSCINT as AMODE(31), RMODE(ANY).
  4. Linkedit user programs as AMODE(31), RMODE(ANY).
The compiler option for dynamic areas in the user program may specify DATA(31).
Program UCFCICS (UCF CICS front-end) must be AMODE(31), RMODE(24), and can only run below the line.