2024-10-07 16:49:32 +08:00
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#pragma once
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#include "types.h"
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#define MIN(a, b) ((a) < (b) ? (a) : (b)) //!< 最小值
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#define MAX(a, b) ((a) > (b) ? (a) : (b)) //!< 最大值
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#define MK_SET_BIT(a, b) ((a) |= 1UL << (b)) //!< 设置BIT
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#define MK_CLR_BIT(a, b) ((a) &= ~(1UL << (b))) //!< 清除BIT
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#define MK_GET_BIT(a, b) (((a) >> (b)) & 0x1) //!< 获取某位的bit
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#define ABS(a) ((a) < 0 ? -(a) : (a)) //!< 取绝对值
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#define ROUND(a, b) (((a) / (b)) + (((a) % (b)) ? 1 : 0)) //!< a/b后的值向上取整
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#define ROUND_UP(a, b) ROUND(a, b) //!< a除b向上取整数
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#define ROUND_DOWN(a, b) ((a) / (b)) //!< a/b向下取整
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#define GET_LSB(a, b) (a & (~((~0ULL) << (b))))
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#define MASK_LSB(a, b) ((a >> (b)) << (b)) //!< 屏蔽低位
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#define ARRARY_LEN(a) (sizeof(a) / sizeof((a)[0])) //!< 数组长度
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#define ALIGN(mem, align) (((mem) + ((align) - 1)) & (~((align) - 1))) //!< 向上对齐
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#define ALIGN_DOWN(mem, align) ((mem) & (~((align) - 1))) //!< 向下对齐
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#define PACKED __attribute__((packed)) //!< 打包
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#define SECTION(section) __attribute__((__section__(section))) //!< 指定section
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#define __ALIGN__(size) __attribute__((aligned(size))) //!< 对齐
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#define __WEAK__ __attribute__((weak)) //!< 弱引用
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#define container_of(ptr, type, member) \
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((type *)(((unsigned long)(ptr)) - ((unsigned long)(&(((type *)0)->member))))) //!< 获取结构体指针
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2024-10-07 18:51:14 +08:00
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#define __USED __attribute__((used)) //!< 使用
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#define __UNUSED __attribute__((unused)) //!< 未使用
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2024-10-07 16:49:32 +08:00
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#define __ARG_PLACEHOLDER_1 0,
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#define __take_second_arg(__ignored, val, ...) val
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#define __is_defined(x) ___is_defined(x)
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#define ___is_defined(val) ____is_defined(__ARG_PLACEHOLDER_##val)
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#define ____is_defined(arg1_or_junk) __take_second_arg(arg1_or_junk 1, 0)
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#define __or(x, y) ___or(x, y)
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#define ___or(x, y) ____or(__ARG_PLACEHOLDER_##x, y)
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#define ____or(arg1_or_junk, y) __take_second_arg(arg1_or_junk 1, y)
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#define IS_BUILTIN(option) __is_defined(option)
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#define IS_MODULE(option) __is_defined(option##_MODULE)
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#define IS_ENABLED(option) __or(IS_BUILTIN(option), IS_MODULE(option)) //!< 判断option是否被定义
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int ffs(int x);
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int clz(umword_t x);
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/**
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* @brief 判断是否是2的幂
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*
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* @param num 需要判断的数
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* @return umword_t 是2的幂返回true，否则返回false
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*/
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static inline umword_t is_power_of_2(umword_t num)
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{
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return (num & (num - 1)) == 0;
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}
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