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/**
* @file
*
* @ingroup bsp_kit
*
* @brief Utility macros.
*/
/*
* Copyright (c) 2008, 2010
* embedded brains GmbH
* Obere Lagerstr. 30
* D-82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef LIBCPU_SHARED_UTILITY_H
#define LIBCPU_SHARED_UTILITY_H
#include <stdint.h>
#define BIT32(bit) \
((uint32_t) 1 << (bit))
#define MASK32(first_bit, last_bit) \
((BIT32((last_bit) - (first_bit) + 1) - (uint32_t) 1) << (first_bit))
#define FIELD32(val, first_bit, last_bit) \
(((uint32_t) (val) << (first_bit)) & MASK32(first_bit, last_bit))
#define GETFIELD32(reg, first_bit, last_bit) \
(((reg) & MASK32(first_bit, last_bit)) >> (first_bit))
#define SETFIELD32(reg, val, first_bit, last_bit) \
(((reg) & ~MASK32(first_bit, last_bit)) | FIELD32(val, first_bit, last_bit))
#endif /* LIBCPU_SHARED_UTILITY_H */
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