TAL Reference Manual

Expressions

TAL Reference Manual—526371-001

4-9

Unsigned Arithmetic Operators

Effect on Hardware Indicators

Signed arithmetic operators affect the hardware indicators as described in Testing

Hardware Indicators on page 4-16.

Unsigned Arithmetic Operators

Typically, you use binary unsigned arithmetic on operands with values in the range 0

through 65,535. For example, you can use unsigned arithmetic with pointers that

contain standard addresses. Table 4-5

summarizes unsigned arithmetic operators and

the operand types on which they can operate.

Table 4-5. Unsigned Arithmetic Operators (page1of2)

Operator Operation Operand Type Example

‘+’

Unsigned addition STRING, INT, or

UNSIGNED(1–16)

alpha '+' beta

‘-’

Unsigned subtraction STRING, INT, or

UNSIGNED(1–16)

alpha '-' beta

‘*’

Unsigned multiplication STRING, INT, or

UNSIGNED(1–16)

alpha '*' beta

VST0403.vsd

up 3

a := 2.015F * (b + C);

FIXED a;

FIXED (2) b;

FIXED (-1) c;

Data declarations

The fpoint of C is increased by 3

The final result is truncated by 5

places to match the fpoint of A