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/* IBM_PROLOG_BEGIN_TAG
* This is an automatically generated prolog.
*
* $Source: src/usr/pore/poreve/model/bebits.H $
*
* IBM CONFIDENTIAL
*
* COPYRIGHT International Business Machines Corp. 2012
*
* p1
*
* Object Code Only (OCO) source materials
* Licensed Internal Code Source Materials
* IBM HostBoot Licensed Internal Code
*
* The source code for this program is not published or other-
* wise divested of its trade secrets, irrespective of what has
* been deposited with the U.S. Copyright Office.
*
* Origin: 30
*
* IBM_PROLOG_END_TAG
*/
#ifndef __VSBE_BEBITS_H
#define __VSBE_BEBITS_H
// $Id: bebits.H,v 1.3 2011/06/30 03:34:58 bcbrock Exp $
/// \file bebits.H
/// \brief Bit manipulation for Big-Endian data
/// A bit mask for a range of bits in a big-endian uint64_t
#define BE64_MASK(begin, end) \
((0xffffffffffffffffull >> (64 - ((end) - (begin) + 1))) << (63 - (end)))
/// A single bit mask for a big-endian uint64_t
#define BE64_BIT(n) (BE64_MASK((n), (n)))
/// Extract an unsigned field from a uint64_t
#define BE64_GET_FIELD(x, begin, end) \
(((x) & BE64_MASK((begin), (end))) >> (63 - (end)))
/// Update an unsigned field in a uint64_t from a right-justified uint64_t value
#define BE64_SET_FIELD(x, begin, end, val) \
((((val) << (63 - (end))) & BE64_MASK((begin), (end))) | \
((x) & ~BE64_MASK((begin), (end))))
#endif // __VSBE_BEBITS_H
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