Language Environment provides the following macros to assist in the entry and exit of assembler routines, to map the CAA and DSA, to generate the appropriate fields in the program prolog area (PPA), to create assembler DLLs, and to use DLLs from assembler routines:
For a description of Assembler macros to assist in writing XPLINK assembler routines, see z/OS XL C/C++ Programming Guide.