Reference Guide

34 Chapter 2
Program Structure
Expressions
Parenthesized Subexpressions
The constant term of an expression may contain parenthesized
subexpressions that alter the order of evaluation from the precedence
normally associated with arithmetic operators. For example:
LABEL1-LABEL2+((6765+(2048-1))/2048)*2048
contains a parenthesized subexpression that rounds a value up to a
multiple of 2048.
Absolute symbols may be equated to constant terms containing
parenthesized subexpressions as in the following sequence:
BASE .EQU 0x200
N_EL .EQU 24
SIZE .EQU (BASE+4)*N_EL
NOTE The use of parentheses to group subexpressions may cause ambiguities
in statements where parenthesized register designators are also
expected.