This part of the chapter describes the techniques and introduces the instructions that let you use symbolic addresses when referring to instructions and data. You can address code and data that is defined within the same source module, or code and data that is defined in another source module. Symbolic addresses are more meaningful and easier to use than the corresponding object code addresses required for machine instructions. The assembler can convert the symbolic addresses you specify into their object code form.
The System/390 and z/Architecture architectures have two ways of resolving addresses in your program, depending on the machine instruction type:
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