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/**
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* @file
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*
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* @brief Utility definitions and functions.
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*/
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/*
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* Copyright (c) 2008
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* Embedded Brains GmbH
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* Obere Lagerstr. 30
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* D-82178 Puchheim
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* Germany
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* rtems@embedded-brains.de
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*
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
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*/
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#ifndef LIBCPU_SHARED_UTILITY_H
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#define LIBCPU_SHARED_UTILITY_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GET_REG_FIELD( reg, mask, shift) \
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(((reg) & (mask)) >> (shift))
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#define SET_REG_FIELD( reg, val, mask, shift) \
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(((reg) & ~(mask)) | (((val) << (shift)) & (mask)))
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#define REG_FLAG_IS_SET( reg, flag) \
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(((reg) & (flag)) != 0)
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#define REG_FLAG_IS_CLEARED( reg, flag) \
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(((reg) & (flag)) == 0)
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#define SET_REG_FLAG( reg, flag) \
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((reg) | (flag))
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#define CLEAR_REG_FLAG( reg, flag) \
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((reg) & ~(flag))
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#define SET_REG_FLAGS( reg, flags, mask) \
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(((reg) & ~(mask)) | (flags))
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#define CLEAR_REG_FLAGS( reg, flags) \
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((reg) & ~(flags))
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* LIBCPU_SHARED_UTILITY_H */
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