Jobdat - Job Data Area Assignments

This document details the structure and allocation of memory within a "Job Data Area" (JOBDAT) for a system. It defines numerous memory blocks, such as JOBAC, JOBDAC, JOBUUO, JOBPC, and others, assigning specific purposes like system and user AC storage, UUO (User Unassigned Operation) handling, interrupt protection, relocation addresses, temporary storage, I/O device channel assignments, and debugger DDT (Dynamic Debugging Technique) locations. The document further specifies various pointers for system use, push-down lists, command strings, and symbol tables, alongside defining highest, first free, and protected memory locations within the data area. It concludes by calculating the total length of the JOBDAT area as 140 and provides a symbol table listing all defined identifiers with their corresponding memory addresses.