TAL Reference Manual

TAL Syntax Summary (Bracket-and-Brace Diagrams)

Appendix C—526371.001

C-6

CASE Expressions

The CASE expression selects one of several expressions.

IF Expressions

The IF expression conditionally selects one of two expressions, usually for assignment

to a variable.

Group Comparison Expressions

The group comparison expression compares a variable with a variable or a constant.

Bit Extractions

A bit extraction accesses a bit field in an INT expression without altering the

expression.

Bit Shifts

A bit shift operation shifts a bit field a specified number of positions to the left or to the

right within a variable without altering the variable.

Declarations

Declaration syntax diagrams describe:

•

LITERALs and DEFINEs

CASE selector OF BEGIN expression ; [ expression ; ] ...

[ OTHERWISE expression ; ] END

IF condition THEN expression ELSE expression

var1 relational-operator

{ var2 FOR count [ count-unit ] } [ -> next-addr ]

{ constant }

{ "[" constant "]" }

{ constant-list }

int-expression < left-bit [: right-bit]>

{ int-expression } shift-operator positions

{ dbl-expression }