Using mixed addressing modes

CICS® supports the use of LINK, XCTL, and RETURN commands between programs with different addressing modes and between programs with the same addressing mode.

The following restrictions apply to programs passing data using a communication area named by the COMMAREA option:

These restrictions apply to the address of the communication area itself, and also to addresses within it. However, a communication area above the 16MB line can be passed to an AMODE(24) subprogram. CICS copies the communication area into an area below the 16MB line for processing. It copies it back again when control returns to the linking program. See Storage control for information about copying CICS-key storage.

CICS does not validate any data addresses passed within a communication area between programs with different addressing modes.

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