Conditional assembly instructions

Conditional assembly instructions let you determine at conditional assembly time the content of the generated statements and the sequence in which they are generated. Here are the instructions and their functions:

Conditional Assembly	Operation Done
GBLA, GBLB, GBLCLCLA, LCLB, LCLC	Declaration of variable symbols (global-scope and local-scope SET symbols) and setting of default initial values
SETA, SETB, SETC	Assignment of values to variable symbols (SET symbols)
SETAF, SETCF	External function assignment of values to variable symbols (SET symbols)
ACTR	Setting loop counter
AGO	Unconditional branch
AIF	Conditional branch (based on logical test)
ANOP	Pass control to next sequential instruction (no operation)

Conditional assembly instructions can be used both inside macro definitions and in open code. They are described in How to write conditional assembly instructions.