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--
--  TMTEST / BODY
--
--  DESCRIPTION:
--
--  This package is the implementation of Test 26 of the RTEMS
--  Timing Test Suite.
--
--  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 INTERFACES; use INTERFACES;
with RTEMS_CALLING_OVERHEAD;
with RTEMS;
with RTEMS_TEST_SUPPORT;
with TEST_SUPPORT;
with TEXT_IO;
with TIME_TEST_SUPPORT;
with UNSIGNED32_IO;

include(../../support/fp.inc)

package body TMTEST is

--PAGE
-- 
--  INIT
--

   procedure INIT (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
      INDEX   : RTEMS.UNSIGNED32;
      TASK_ID : RTEMS.ID;
      STATUS  : RTEMS.STATUS_CODES;
   begin

      TEXT_IO.NEW_LINE( 2 );
      TEXT_IO.PUT_LINE( "*** TIME TEST 26 ***" );

      RTEMS.TASK_CREATE( 
         RTEMS.BUILD_NAME(  'F', 'P', '1', ' ' ),
         201, 
         2048, 
         RTEMS.DEFAULT_MODES,
         RTEMS.FLOATING_POINT,
         TASK_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE OF FP1" );

      RTEMS.TASK_START(
         TASK_ID,
         TMTEST.FLOATING_POINT_TASK_1'ACCESS,
         0,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START OF FP1" );

      RTEMS.TASK_CREATE( 
         RTEMS.BUILD_NAME(  'F', 'P', '2', ' ' ),
         202, 
         2048, 
         RTEMS.DEFAULT_MODES,
         RTEMS.FLOATING_POINT,
         TASK_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE OF FP2" );

      RTEMS.TASK_START(
         TASK_ID,
         TMTEST.FLOATING_POINT_TASK_2'ACCESS,
         0,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START OF FP2" );

      RTEMS.TASK_CREATE( 
         RTEMS.BUILD_NAME(  'L', 'O', 'W', ' ' ),
         200, 
         2048, 
         RTEMS.DEFAULT_MODES,
         RTEMS.DEFAULT_ATTRIBUTES,
         TASK_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE OF LOW" );

      RTEMS.TASK_START( 
         TASK_ID, 
         TMTEST.LOW_TASK'ACCESS, 
         0, 
         STATUS 
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START OF LOW" );

      RTEMS.TASK_CREATE( 
         RTEMS.BUILD_NAME(  'M', 'I', 'D', ' ' ),
         128, 
         2048, 
         RTEMS.DEFAULT_MODES,
         RTEMS.DEFAULT_ATTRIBUTES,
         TASK_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE OF MIDDLE" );

      RTEMS.TASK_START( 
         TASK_ID, 
         TMTEST.MIDDLE_TASK'ACCESS, 
         0, 
         STATUS 
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START OF MIDDLE" );

      RTEMS.TASK_CREATE( 
         RTEMS.BUILD_NAME(  'H', 'I', 'G', 'H' ),
         5, 
         2048, 
         RTEMS.DEFAULT_MODES,
         RTEMS.DEFAULT_ATTRIBUTES,
         TASK_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE OF HIGH" );

      RTEMS.TASK_START( 
         TASK_ID, 
         TMTEST.HIGH_TASK'ACCESS, 
         0, 
         STATUS 
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START OF HIGH" );

      RTEMS.SEMAPHORE_CREATE( 
         RTEMS.BUILD_NAME(  'S', 'E', 'M', '1' ),
         TIME_TEST_SUPPORT.OPERATION_COUNT, 
         RTEMS.DEFAULT_ATTRIBUTES,
         TMTEST.SEMAPHORE_ID,
         STATUS
      );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "SEMAPHORE_CREATE" );

      for INDEX in 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT
      loop

         RTEMS.TASK_CREATE( 
            RTEMS.BUILD_NAME(  'N', 'U', 'L', 'L' ),
            254, 
            512, 
            RTEMS.DEFAULT_MODES,
            RTEMS.DEFAULT_ATTRIBUTES,
            TASK_ID,
            STATUS
         );
         TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_CREATE LOOP" );

         RTEMS.TASK_START( 
            TASK_ID, 
            TMTEST.NULL_TASK'ACCESS, 
            0, 
            STATUS 
         );
         TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_START LOOP" );

      end loop;

      RTEMS.TASK_DELETE( RTEMS.SELF, STATUS );
      TEST_SUPPORT.DIRECTIVE_FAILED( STATUS, "TASK_DELETE OF SELF" );

   end INIT;

--PAGE
-- 
--  NULL_TASK
--

   procedure NULL_TASK (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
   begin

      NULL;

   end NULL_TASK;

--PAGE
-- 
--  HIGH_TASK
--

   procedure HIGH_TASK (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
   begin

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_ENABLE_DISPATCH;
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_ENABLE_DISPATCH", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_SET_STATE( 
            RTEMS_TEST_SUPPORT.THREAD_EXECUTING,
            RTEMS.SUSPENDED
         );
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_SET_STATE", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      -- FORCE CONTEXT SWITCH

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := TRUE;

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_DISPATCH; -- dispatches MIDDLE_TASK

   end HIGH_TASK;

--PAGE
-- 
--  MIDDLE_TASK
--

   procedure MIDDLE_TASK (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
   begin

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_DISPATCH (NO FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      RTEMS_TEST_SUPPORT.THREAD_SET_STATE( 
         RTEMS_TEST_SUPPORT.THREAD_EXECUTING,
         RTEMS.SUSPENDED
      );

      TMTEST.MIDDLE_TCB := RTEMS_TEST_SUPPORT.THREAD_EXECUTING;
 
      RTEMS_TEST_SUPPORT.THREAD_EXECUTING :=
          RTEMS_TEST_SUPPORT.THREAD_TO_CONTROL_POINTER(
             RTEMS_TEST_SUPPORT.CHAIN_NODE_POINTER_TO_ADDRESS(
                RTEMS_TEST_SUPPORT.THREAD_READY_CHAIN( 200 ).FIRST
             )
          );

      -- do NOT force context switch

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := FALSE;

      RTEMS_TEST_SUPPORT.THREAD_DISABLE_DISPATCH;

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.CONTEXT_SWITCH(
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               TMTEST.MIDDLE_TCB.REGISTERS'ADDRESS 
            ),
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               RTEMS_TEST_SUPPORT.THREAD_EXECUTING.REGISTERS'ADDRESS 
            )
         );

   end MIDDLE_TASK;

--PAGE
-- 
--  LOW_TASK
--

   procedure LOW_TASK (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
      EXECUTING : RTEMS.TCB_POINTER;
   begin

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "CONTEXT_SWITCH (NO FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      EXECUTING := RTEMS_TEST_SUPPORT.THREAD_EXECUTING;
   
      RTEMS_TEST_SUPPORT.THREAD_EXECUTING :=
          RTEMS_TEST_SUPPORT.THREAD_TO_CONTROL_POINTER(
             RTEMS_TEST_SUPPORT.CHAIN_NODE_POINTER_TO_ADDRESS(
                RTEMS_TEST_SUPPORT.THREAD_READY_CHAIN( 201 ).FIRST
             )
          );

      -- do NOT force context switch

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := FALSE;

      RTEMS_TEST_SUPPORT.THREAD_DISABLE_DISPATCH;

      TIMER_DRIVER.INITIALIZE;

         RTEMS_TEST_SUPPORT.CONTEXT_RESTORE_FP(
            RTEMS_TEST_SUPPORT.THREAD_EXECUTING.FP_CONTEXT'ADDRESS
         );
         RTEMS_TEST_SUPPORT.CONTEXT_SWITCH(
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               EXECUTING.REGISTERS'ADDRESS 
            ),
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               RTEMS_TEST_SUPPORT.THREAD_EXECUTING.REGISTERS'ADDRESS 
            )
         );

   end LOW_TASK;

--PAGE
-- 
--  FLOATING_POINT_TASK_1
--

   procedure FLOATING_POINT_TASK_1 (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
      EXECUTING           : RTEMS.TCB_POINTER;
      FP_DECLARE;
   begin

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "CONTEXT_SWITCH (restore 1st FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      EXECUTING := RTEMS_TEST_SUPPORT.THREAD_EXECUTING;
   
      RTEMS_TEST_SUPPORT.THREAD_EXECUTING :=
          RTEMS_TEST_SUPPORT.THREAD_TO_CONTROL_POINTER(
             RTEMS_TEST_SUPPORT.CHAIN_NODE_POINTER_TO_ADDRESS(
                RTEMS_TEST_SUPPORT.THREAD_READY_CHAIN( 202 ).FIRST
             )
          );

      -- do NOT force context switch

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := FALSE;

      RTEMS_TEST_SUPPORT.THREAD_DISABLE_DISPATCH;

      TIMER_DRIVER.INITIALIZE;

         RTEMS_TEST_SUPPORT.CONTEXT_SAVE_FP( EXECUTING.FP_CONTEXT'ADDRESS );
         RTEMS_TEST_SUPPORT.CONTEXT_RESTORE_FP(
            RTEMS_TEST_SUPPORT.THREAD_EXECUTING.FP_CONTEXT'ADDRESS
         );
         RTEMS_TEST_SUPPORT.CONTEXT_SWITCH(
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               EXECUTING.REGISTERS'ADDRESS 
            ),
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               RTEMS_TEST_SUPPORT.THREAD_EXECUTING.REGISTERS'ADDRESS 
            )
         );

      -- switch to FLOATING_POINT_TASK_2

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "CONTEXT_SWITCH (used->init FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0 
      );

      FP_LOAD( 1.0 );

      EXECUTING := RTEMS_TEST_SUPPORT.THREAD_EXECUTING;
   
      RTEMS_TEST_SUPPORT.THREAD_EXECUTING :=
          RTEMS_TEST_SUPPORT.THREAD_TO_CONTROL_POINTER(
             RTEMS_TEST_SUPPORT.CHAIN_NODE_POINTER_TO_ADDRESS(
                RTEMS_TEST_SUPPORT.THREAD_READY_CHAIN( 202 ).FIRST
             )
          );

      -- do NOT force context switch

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := FALSE;

      RTEMS_TEST_SUPPORT.THREAD_DISABLE_DISPATCH;

      TIMER_DRIVER.INITIALIZE;

         RTEMS_TEST_SUPPORT.CONTEXT_SAVE_FP( EXECUTING.FP_CONTEXT'ADDRESS );
         RTEMS_TEST_SUPPORT.CONTEXT_RESTORE_FP(
            RTEMS_TEST_SUPPORT.THREAD_EXECUTING.FP_CONTEXT'ADDRESS
         );
         RTEMS_TEST_SUPPORT.CONTEXT_SWITCH(
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               EXECUTING.REGISTERS'ADDRESS 
            ),
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               RTEMS_TEST_SUPPORT.THREAD_EXECUTING.REGISTERS'ADDRESS 
            )
         );

      -- switch to FLOATING_POINT_TASK_2

   end FLOATING_POINT_TASK_1;

--PAGE
-- 
--  FLOATING_POINT_TASK_2
--

   procedure FLOATING_POINT_TASK_2 (
      ARGUMENT : in     RTEMS.TASK_ARGUMENT
   ) is
      EXECUTING           : RTEMS.TCB_POINTER;
      FP_DECLARE;
   begin

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "CONTEXT_SWITCH (init->init FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0 
      );

      EXECUTING := RTEMS_TEST_SUPPORT.THREAD_EXECUTING;
   
      RTEMS_TEST_SUPPORT.THREAD_EXECUTING :=
          RTEMS_TEST_SUPPORT.THREAD_TO_CONTROL_POINTER(
             RTEMS_TEST_SUPPORT.CHAIN_NODE_POINTER_TO_ADDRESS(
                RTEMS_TEST_SUPPORT.THREAD_READY_CHAIN( 201 ).FIRST
             )
          );

      FP_LOAD( 1.0 );

      -- do NOT force context switch

      RTEMS_TEST_SUPPORT.CONTEXT_SWITCH_NECESSARY := FALSE;

      RTEMS_TEST_SUPPORT.THREAD_DISABLE_DISPATCH;

      TIMER_DRIVER.INITIALIZE;

         RTEMS_TEST_SUPPORT.CONTEXT_SAVE_FP( EXECUTING.FP_CONTEXT'ADDRESS );
         RTEMS_TEST_SUPPORT.CONTEXT_RESTORE_FP(
            RTEMS_TEST_SUPPORT.THREAD_EXECUTING.FP_CONTEXT'ADDRESS
         );
         RTEMS_TEST_SUPPORT.CONTEXT_SWITCH(
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               EXECUTING.REGISTERS'ADDRESS 
            ),
            RTEMS_TEST_SUPPORT.CONTEXT_TO_CONTROL_POINTER( 
               RTEMS_TEST_SUPPORT.THREAD_EXECUTING.REGISTERS'ADDRESS 
            )
         );

      -- switch to FLOATING_POINT_TASK_1

      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "CONTEXT_SWITCH (used->used FP)", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      TMTEST.COMPLETE_TEST;

      RTEMS.SHUTDOWN_EXECUTIVE( 0 );

   end FLOATING_POINT_TASK_2;

--PAGE
-- 
--  COMPLETE_TEST
--

   procedure COMPLETE_TEST
   is 
      INDEX         : RTEMS.UNSIGNED32;
      OVERHEAD      : RTEMS.UNSIGNED32;
      TASK_ID       : RTEMS.ID;
      LOCATION      : RTEMS_TEST_SUPPORT.OBJECTS_LOCATIONS;
      THE_SEMAPHORE : RTEMS.TCB_POINTER;
      THE_THREAD    : RTEMS.TCB_POINTER;
   begin

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_RESUME( TMTEST.MIDDLE_TCB );
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_RESUME", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      RTEMS_TEST_SUPPORT.THREAD_SET_STATE( 
         TMTEST.MIDDLE_TCB,
         RTEMS.WAITING_FOR_MESSAGE
      );

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_UNBLOCK( TMTEST.MIDDLE_TCB );
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_UNBLOCK", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      RTEMS_TEST_SUPPORT.THREAD_SET_STATE( 
         TMTEST.MIDDLE_TCB,
         RTEMS.WAITING_FOR_MESSAGE
      );

      TIMER_DRIVER.INITIALIZE;
         RTEMS_TEST_SUPPORT.THREAD_READY( TMTEST.MIDDLE_TCB );
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_READY", 
         TMTEST.END_TIME, 
         1, 
         0,
         0
      );

      TIMER_DRIVER.INITIALIZE;
         for INDEX in 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT
         loop
            TIMER_DRIVER.EMPTY_FUNCTION;
         end loop;
      OVERHEAD := TIMER_DRIVER.READ_TIMER;

      TIMER_DRIVER.INITIALIZE;
         for INDEX in 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT
         loop
            RTEMS_TEST_SUPPORT.THREAD_GET( 
               TASK_ID, 
               LOCATION, 
               THE_THREAD
            );
         end loop;
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_GET", 
         TMTEST.END_TIME, 
         TIME_TEST_SUPPORT.OPERATION_COUNT, 
         0,
         0
      );

--      TIMER_DRIVER.INITIALIZE;
--         for INDEX in 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT
--         loop
--            RTEMS_TEST_SUPPORT.SEMAPHORE_GET( 
--               TMTEST.SEMAPHORE_ID, 
--               LOCATION, 
--               THE_SEMAPHORE
--            );
--         end loop;
--      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
--      TIME_TEST_SUPPORT.PUT_TIME( 
--         "SEMAPHORE_GET", 
--         TMTEST.END_TIME, 
--         TIME_TEST_SUPPORT.OPERATION_COUNT, 
--         0,
--         0
--      );
        TEXT_IO.PUT_LINE( "SEMAPHORE_GET NOT IN ADA" );

      TIMER_DRIVER.INITIALIZE;
         for INDEX in 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT
         loop
            RTEMS_TEST_SUPPORT.THREAD_GET( 
               16#3#,
               LOCATION, 
               THE_THREAD
            ); 
         end loop;
      TMTEST.END_TIME := TIMER_DRIVER.READ_TIMER;
      
      TIME_TEST_SUPPORT.PUT_TIME( 
         "THREAD_GET (invalid id)", 
         TMTEST.END_TIME, 
         TIME_TEST_SUPPORT.OPERATION_COUNT, 
         0,
         0
      );

   end COMPLETE_TEST;

end TMTEST;