Expression check
@EXP(expression)
Returns an integer 1 (memory space attribute N) if the evaluation of expression would not result in errors. Returns 0 if the evaluation of expression would cause an error. No error is the output by the Assembler if expression contains an error. No test is made by the Assembler for warnings. The expression may be relative or absolute.
IF @EXP(1|0) ; skip on divide by zero error