From ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 11 May 1995 17:39:37 +0000
Subject: Initial revision

---
 cpukit/score/macros/rtems/score/priority.inl | 144 +++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 cpukit/score/macros/rtems/score/priority.inl

(limited to 'cpukit/score/macros/rtems/score/priority.inl')

diff --git a/cpukit/score/macros/rtems/score/priority.inl b/cpukit/score/macros/rtems/score/priority.inl
new file mode 100644
index 0000000000..7ad1fd909a
--- /dev/null
+++ b/cpukit/score/macros/rtems/score/priority.inl
@@ -0,0 +1,144 @@
+/*  priority.inl
+ *
+ *  This file contains the macro implementation of all inlined routines
+ *  in the Priority Handler.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#ifndef __PRIORITY_inl
+#define __PRIORITY_inl
+
+#include <rtems/bitfield.h>
+
+/*PAGE
+ *
+ *  _Priority_Handler_initialization
+ *
+ */
+
+#define _Priority_Handler_initialization() \
+  { \
+    unsigned32 index; \
+    \
+    _Priority_Major_bit_map = 0; \
+    for ( index=0 ; index <16 ; index++ ) \
+       _Priority_Bit_map[ index ] = 0; \
+  }
+
+/*PAGE
+ *
+ *  _Priority_Is_valid
+ *
+ */
+
+#define _Priority_Is_valid( _the_priority ) \
+  (  ( (_the_priority) >= RTEMS_MINIMUM_PRIORITY ) && \
+     ( (_the_priority) <= RTEMS_MAXIMUM_PRIORITY ) )
+
+/*PAGE
+ *
+ *  _Priority_Major
+ *
+ */
+
+#define _Priority_Major( _the_priority ) ( (_the_priority) / 16 )
+
+/*PAGE
+ *
+ *  _Priority_Minor
+ *
+ */
+
+#define _Priority_Minor( _the_priority ) ( (_the_priority) % 16 )
+
+/*PAGE
+ *
+ *  _Priority_Add_to_bit_map
+ *
+ */
+
+#define _Priority_Add_to_bit_map( _the_priority_map ) \
+   { \
+     *(_the_priority_map)->minor |= (_the_priority_map)->ready_minor; \
+     _Priority_Major_bit_map     |= (_the_priority_map)->ready_major; \
+   }
+
+/*PAGE
+ *
+ *  _Priority_Remove_from_bit_map
+ *
+ */
+
+#define _Priority_Remove_from_bit_map( _the_priority_map ) \
+   { \
+     *(_the_priority_map)->minor &= (_the_priority_map)->block_minor; \
+     if ( *(_the_priority_map)->minor == 0 ) \
+       _Priority_Major_bit_map &= (_the_priority_map)->block_major; \
+   }
+
+/*PAGE
+ *
+ *  _Priority_Get_highest
+ *
+ */
+
+#define _Priority_Get_highest( _high_priority ) \
+  { \
+    Priority_Bit_map_control minor; \
+    Priority_Bit_map_control major; \
+    \
+    _Bitfield_Find_first_bit( _Priority_Major_bit_map, major ); \
+    _Bitfield_Find_first_bit( _Priority_Bit_map[major], minor ); \
+    \
+    (_high_priority) = (_CPU_Priority_Bits_index( major ) * 16) +  \
+                       _CPU_Priority_Bits_index( minor ); \
+  }
+
+/*PAGE
+ *
+ *  _Priority_Initialize_information
+ *
+ */
+
+#define _Priority_Initialize_information( \
+     _the_priority_map, _new_priority ) \
+  { \
+    Priority_Bit_map_control _major; \
+    Priority_Bit_map_control _minor; \
+    Priority_Bit_map_control _mask;  \
+    \
+    _major = _Priority_Major( (_new_priority) ); \
+    _minor = _Priority_Minor( (_new_priority) ); \
+    \
+    (_the_priority_map)->minor =  \
+      &_Priority_Bit_map[ _CPU_Priority_Bits_index(_major) ]; \
+    \
+    _mask = _CPU_Priority_Mask( _major ); \
+    (_the_priority_map)->ready_major = _mask; \
+    (_the_priority_map)->block_major = ~_mask; \
+    \
+    _mask = _CPU_Priority_Mask( _minor ); \
+    (_the_priority_map)->ready_minor = _mask; \
+    (_the_priority_map)->block_minor = ~_mask; \
+  }
+
+/*PAGE
+ *
+ *  _Priority_Is_group_empty
+ *
+ */
+
+#define _Priority_Is_group_empty ( _the_priority ) \
+  ( (_the_priority) == 0 )
+}
+#endif
+/* end of include file */
-- 
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