System Debug Reference Manual (32650-90888)

30 Chapter2

User Interface

Operators

Operators are classiﬁed as arithmetic, Boolean, relational, address, and concatenation. A

particular operator symbol may occur in more than one class of operators. For example, the

symbol '+' is an arithmetic operator representing numeric addition, as well as string

concatenation.

The table below summarizes the System Debug supported operators by operator class, and

lists the possible operand and operator result types. The following subsections discuss the

operators in detail.

Arithmetic Operators

Arithmetic operators perform integer arithmetic. The operators include the familiar +, -,

*, /, and MOD. The operator / computes the integer quotient of two numbers, while MOD

computes the remainder. The result of MOD is always nonnegative, regardless of the sign of

the left operand. This implementation of MOD is the same as that in HP Pascal, which

deﬁnes the result of i MOD j, j > 0, to be

i - k * j

for some integer k, such that

Table 2-3. Operators

Class Operator Operand Types Result Types

Arithmetic + (addition)

- (subtraction)

* (multiplication)

/ (division, quotient)

MOD (division, modulus)

INT, PTR INT, PTR

Boolean AND (logical and)

OR (logical or)

NOT (logical not)

BOOL, INT BOOL

Bit BAND (bitwise and)

BOR (bitwise or)

BNOT (bitwise not)

<< (left shift bits)

>> (right shift bits)

INT, PTR INT, PTR

Relational < (less than)

<= (less than or equal to)

= (equal)

<> (not equal)

>= (greater than or equal to)

> (greater than)

BOOL, INT,

PTR, STR

BOOL

Address [ ] (indirection) PTR U16, U32

String + (concatenation) STR STR