Considerations for Assembler Programs in a DC/UCF Online System

Certain coding conventions should be observed in Assembler programs which are to be used in a DC/UCF online system both for stand-alone programs and programs which are to be called from another online program. This section will discuss the following topics:
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Certain coding conventions should be observed in Assembler programs which are to be used in a DC/UCF online system both for stand-alone programs and programs which are to be called from another online program. This section will discuss the following topics:
  • SVC instructions in an online program
  • Making your assembler program reentrant
  • Methods of calling an assembler subprogram
Defining an assembler program which uses standard IBM calling conventions