Luigi Capogrosso
31 lines
1012 B
C
31 lines
1012 B
C
/// MentOS, The Mentoring Operating system project
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/// @file bitops.h
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/// @brief Bitmasks functions.
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/// @copyright (c) 2019 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#pragma once
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#include "stdint.h"
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#include "stdbool.h"
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/// @brief Finds the first bit set in the given irq mask.
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int find_first_bit(unsigned short int irq_mask);
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/// @brief Check if the passed value has the given flag set.
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/// @param flags The value to check.
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/// @param flag The flag to search.
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/// @return True If the value contain the flag, <br>
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/// False otherwise.
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bool_t has_flag(uint32_t flags, uint32_t flag);
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/// @brief Set the passed flag to the value.
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/// @param flags The destination value.
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/// @param flag The flag to set.
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void set_flag(uint32_t *flags, uint32_t flag);
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/// @brief Clear the passed flag to the value.
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/// @param flags The destination value.
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/// @param flag The flag to clear.
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void clear_flag(uint32_t *flags, uint32_t flag);
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