Conditional assembly language

A Conditional Assembly Language is that part of an Assembly Language used to write macros.

In the IBM conditional assembly language (as an example), the most important statements are:-

*MACRO and MEND - used to start and finish a macro *AIF, AGO, ANOP, AEND, AEXIT and MEXIT - used to control the generation of different assembly language statements, depending on the nature of the macros supplied arguments. *SETx - used to manipulate variables within the macro.