forked from Imagelibrary/rtems
151 lines
4.6 KiB
C
151 lines
4.6 KiB
C
/**
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* @file
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*
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* @ingroup bsp_kit
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*
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* @brief Utility macros.
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*/
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/*
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* Copyright (c) 2008-2011 embedded brains GmbH. All rights reserved.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/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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#include <stdint.h>
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#define BSP_BIT8(bit) \
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((uint8_t) (((unsigned int) 1) << (bit)))
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#define BSP_MSK8(first_bit, last_bit) \
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((uint8_t) ((BSP_BIT8((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
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#define BSP_FLD8(val, first_bit, last_bit) \
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((uint8_t) \
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((((unsigned int) (val)) << (first_bit)) & BSP_MSK8(first_bit, last_bit)))
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#define BSP_FLD8GET(reg, first_bit, last_bit) \
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((uint8_t) (((reg) & BSP_MSK8(first_bit, last_bit)) >> (first_bit)))
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#define BSP_FLD8SET(reg, val, first_bit, last_bit) \
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((uint8_t) (((reg) & ~BSP_MSK8(first_bit, last_bit)) \
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| BSP_FLD8(val, first_bit, last_bit)))
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#define BSP_BIT16(bit) \
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((uint16_t) (((unsigned int) 1) << (bit)))
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#define BSP_MSK16(first_bit, last_bit) \
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((uint16_t) ((BSP_BIT16((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
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#define BSP_FLD16(val, first_bit, last_bit) \
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((uint16_t) \
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((((unsigned int) (val)) << (first_bit)) & BSP_MSK16(first_bit, last_bit)))
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#define BSP_FLD16GET(reg, first_bit, last_bit) \
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((uint16_t) (((reg) & BSP_MSK16(first_bit, last_bit)) >> (first_bit)))
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#define BSP_FLD16SET(reg, val, first_bit, last_bit) \
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((uint16_t) (((reg) & ~BSP_MSK16(first_bit, last_bit)) \
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| BSP_FLD16(val, first_bit, last_bit)))
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#define BSP_BIT32(bit) \
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((uint32_t) (((uint32_t) 1) << (bit)))
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#define BSP_MSK32(first_bit, last_bit) \
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((uint32_t) ((BSP_BIT32((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
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#define BSP_FLD32(val, first_bit, last_bit) \
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((uint32_t) \
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((((uint32_t) (val)) << (first_bit)) & BSP_MSK32(first_bit, last_bit)))
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#define BSP_FLD32GET(reg, first_bit, last_bit) \
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((uint32_t) (((reg) & BSP_MSK32(first_bit, last_bit)) >> (first_bit)))
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#define BSP_FLD32SET(reg, val, first_bit, last_bit) \
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((uint32_t) (((reg) & ~BSP_MSK32(first_bit, last_bit)) \
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| BSP_FLD32(val, first_bit, last_bit)))
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#define BSP_BIT64(bit) \
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((uint64_t) (((uint64_t) 1) << (bit)))
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#define BSP_MSK64(first_bit, last_bit) \
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((uint64_t) ((BSP_BIT64((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
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#define BSP_FLD64(val, first_bit, last_bit) \
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((uint64_t) \
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((((uint64_t) (val)) << (first_bit)) & BSP_MSK64(first_bit, last_bit)))
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#define BSP_FLD64GET(reg, first_bit, last_bit) \
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((uint64_t) (((reg) & BSP_MSK64(first_bit, last_bit)) >> (first_bit)))
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#define BSP_FLD64SET(reg, val, first_bit, last_bit) \
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((uint64_t) (((reg) & ~BSP_MSK64(first_bit, last_bit)) \
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| BSP_FLD64(val, first_bit, last_bit)))
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#define BSP_BBIT8(bit) \
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BSP_BIT8(7 - (bit))
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#define BSP_BMSK8(first_bit, last_bit) \
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BSP_MSK8(7 - (last_bit), 7 - (first_bit))
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#define BSP_BFLD8(val, first_bit, last_bit) \
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BSP_FLD8(val, 7 - (last_bit), 7 - (first_bit))
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#define BSP_BFLD8GET(reg, first_bit, last_bit) \
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BSP_FLD8GET(reg, 7 - (last_bit), 7 - (first_bit))
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#define BSP_BFLD8SET(reg, val, first_bit, last_bit) \
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BSP_FLD8SET(reg, val, 7 - (last_bit), 7 - (first_bit))
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#define BSP_BBIT16(bit) \
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BSP_BIT16(15 - (bit))
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#define BSP_BMSK16(first_bit, last_bit) \
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BSP_MSK16(15 - (last_bit), 15 - (first_bit))
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#define BSP_BFLD16(val, first_bit, last_bit) \
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BSP_FLD16(val, 15 - (last_bit), 15 - (first_bit))
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#define BSP_BFLD16GET(reg, first_bit, last_bit) \
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BSP_FLD16GET(reg, 15 - (last_bit), 15 - (first_bit))
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#define BSP_BFLD16SET(reg, val, first_bit, last_bit) \
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BSP_FLD16SET(reg, val, 15 - (last_bit), 15 - (first_bit))
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#define BSP_BBIT32(bit) \
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BSP_BIT32(31 - (bit))
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#define BSP_BMSK32(first_bit, last_bit) \
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BSP_MSK32(31 - (last_bit), 31 - (first_bit))
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#define BSP_BFLD32(val, first_bit, last_bit) \
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BSP_FLD32(val, 31 - (last_bit), 31 - (first_bit))
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#define BSP_BFLD32GET(reg, first_bit, last_bit) \
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BSP_FLD32GET(reg, 31 - (last_bit), 31 - (first_bit))
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#define BSP_BFLD32SET(reg, val, first_bit, last_bit) \
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BSP_FLD32SET(reg, val, 31 - (last_bit), 31 - (first_bit))
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#define BSP_BBIT64(bit) \
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BSP_BIT64(63 - (bit))
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#define BSP_BMSK64(first_bit, last_bit) \
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BSP_MSK64(63 - (last_bit), 63 - (first_bit))
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#define BSP_BFLD64(val, first_bit, last_bit) \
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BSP_FLD64(val, 63 - (last_bit), 63 - (first_bit))
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#define BSP_BFLD64GET(reg, first_bit, last_bit) \
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BSP_FLD64GET(reg, 63 - (last_bit), 63 - (first_bit))
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#define BSP_BFLD64SET(reg, val, first_bit, last_bit) \
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BSP_FLD64SET(reg, val, 63 - (last_bit), 63 - (first_bit))
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#endif /* LIBCPU_SHARED_UTILITY_H */
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