Table of Contents Previous topic Next topic
CROSS ASSEMBLER->Assembler Expressions->Assembler Expressions
Expressions are placed in the operand field and are evaluated by the cross-assembler to give a numerical value. An expression may be used anywhere within the operand field where a numerical value is expected. The expression evaluator within the cross-assembler will use 32 bit integer arithmetic to calculate the value of the expression.
The expression may consist of symbols, numbers, literals and operators. Parentheses may be used to define a particular order of precedence. Parentheses can be nested.
The following operators are allowed:
|Logical exclusive OR||~|
|()||Expressions within parentheses are evaluated first.|
|<< >>||Shift operations are performed next.& ! ~Logical AND, OR and exclusive OR have the next priority. * /Multiplication and division are evaluated next.|
|+ -||Addition and subtraction are evaluated last. Operators with the same precedence are evaluated from left to right.|