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--
-- Timer_Driver / Specification
--
-- Description:
--
-- This package is the specification for the Timer Driver.
--
-- Dependencies:
--
--
--
-- COPYRIGHT (c) 1989-1997.
-- On-Line Applications Research Corporation (OAR).
-- Copyright assigned to U.S. Government, 1994.
--
-- The license and distribution terms for this file may in
-- the file LICENSE in this distribution or at
-- http://www.OARcorp.com/rtems/license.html.
--
-- $Id$
--
with RTEMS;
package Timer_Driver is
--
-- Initialize
--
-- Description:
--
-- This subprogram initializes the hardware timer to start it.
--
procedure Initialize;
pragma Import (C, Initialize, "Timer_initialize");
--
-- Read_Timer
--
-- Description:
--
-- This subprogram stops the timer, calculates the length of time
-- in microseconds since the timer was started, and returns that
-- value.
--
function Read_Timer
return RTEMS.Unsigned32;
pragma Import (C, Read_Timer, "Read_timer");
--
-- Empty_Function
--
-- Description:
--
-- This subprogram is an empty subprogram. It is used to
-- insure that a loop will be included in the final executable
-- so that loop overhead can be subtracted from the directive
-- times reported.
--
procedure Empty_Function;
pragma Import (C, Empty_Function, "Empty_function");
--
-- Set_Find_Average_Overhead
--
-- Description:
--
-- This subprogram sets the Find_Average_Overhead flag to the
-- the value passed.
--
procedure Set_Find_Average_Overhead (
Find_Flag : in Standard.Boolean
);
private
end Timer_Driver;
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