ASMA077E Circular definition

Explanation
The value of a symbol in an expression is dependent on itself,
either directly or indirectly, through one or more EQU statements.
In the following example: 
A  EQU  B
B  EQU  C
C  EQU  A

A is circularly defined.

System action
The value of the EQU statement defaults to the current value of
the location counter. All other EQU statements involved in the circularity
are defaulted in terms of this one.

Programmer response
Supply a correct definition.

Severity
8