1 files changed, 49 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/bitfield.h b/cpukit/score/include/rtems/score/bitfield.h
new file mode 100644
index 0000000000..a74ea97735
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+++ b/cpukit/score/include/rtems/score/bitfield.h
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+/*  bitfield.h
+ *
+ *  This include file contains all bit field manipulation routines.
+ *
+ *  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 __RTEMS_BITFIELD_h
+#define __RTEMS_BITFIELD_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ *  _Bitfield_Find_first_bit
+ *
+ *  DESCRIPTION:
+ *
+ *  This routine returns the bit_number of the first bit set
+ *  in the specified value.  The correspondence between bit_number
+ *  and actual bit position is processor dependent.  The search for
+ *  the first bit set may run from most to least significant bit
+ *  or vice-versa.
+ *
+ *  NOTE:
+ *
+ *  This routine is used when the executing thread is removed
+ *  from the ready state and, as a result, its performance has a
+ *  significant impact on the performance of the executive as a whole.
+ */
+
+#define _Bitfield_Find_first_bit( _value, _bit_number ) \
+        _CPU_Bitfield_Find_first_bit( _value, _bit_number )
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */