Register saving formats for z/OS are very clearly described in the Linkage Conventions section of z/OS MVS Programming: Assembler Services Guide.
Some mappings are provided in IHASAVER. Peter Relson z/OS Core Technology Design
Register saving formats for z/OS are very clearly described in the Linkage Conventions section of z/OS MVS Programming: Assembler Services Guide.
Some mappings are provided in IHASAVER. Peter Relson z/OS Core Technology Design