TAL Reference Manual

Data Representation

TAL Reference Manual—526371-001

3-3

Specifying Data Types

The format for specifying data types in declarations is:

width

is a constant expression that specifies the width, in bits, of the variable. The

constant expression can include LITERALs and DEFINEs (previously declared

constants and text). The result of the constant expression must be one of the

following values:

fpoint

is the implied fixed-point setting of a FIXED variable. fpoint is an integer in the

range –19 through 19. If you omit fpoint, the default fpoint is 0 (no decimal places).

A positive fpoint specifies the number of decimal places to the right of the decimal

point. A negative fpoint specifies a number of integer places to the left of the

decimal point.

* (asterisk)

is a FIXED data type notation. The asterisk prevents scaling of the initialization

value.

Data Type Prefix width, in bit

INT 16 * , 32, or 64 *

REAL 32 * or 64

UNSIGNED, simple variable, parameter,

or function result

A value in the range 1 through 31

UNSIGNED - array element 1, 2, 4, or 8

* INT(16), INT(64), and REAL(32) are data type aliases, as described in Data Type Aliases on

page 3-4

STRING

INT

REAL

UNSIGNED

FIXED

width

fpoint

(

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