Loop
A sequential statement used to execute a set of sequential statements
repeatedly.
Syntax
[LoopLabel:] loop
SequentialStatements...
end loop [LoopLabel];
Where
See Sequential Statement
Things to remember
A loop is an infinite loop (and thus an error) unless it contains an exit or wait
statement.
Synthesis
Not generally synthesizable. Some tools do allow loops containing wait
statements to describe implicit finite state machines, but this is not
recommended practice.
Example
loop
wait until Clock = '1';
exit when Reset = '1';
Div2 <= not Div2;
end loop;
See Also
For Loop, While Loop, Exit, Next
|