Setting Addressing Mode and Residency Mode

The memory requirements of an Assembler program are indicated by its AMODE and RMODE:

• AMODE (or addressing mode) governs the type of addresses the program uses.
• RMODE (or residency mode) indicates where the program must be located when it is loaded for execution.

There are two AMODE values:

There is an additional cobol compiler directive, DATA(24) that ensures that the working-storage section of the cobol module is assigned addresses below the 16 megabyte line irrespective of any AMODE setting.