32 lines
1.2 KiB
C
Executable File
32 lines
1.2 KiB
C
Executable File
#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) |= 1 << (b)) //!< 设置BIT
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#define MK_CLR_BIT(a, b) ((a) &= ~(1 << (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 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 MASK_LSB(data, inx) (((data) >> (inx)) << (inx)) //!< 屏蔽低位
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#define __ALIGN__(size) __attribute__((aligned(size)))
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#define container_of(ptr, type, member) \
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((type *)(((umword_t)(ptr)) - ((umword_t)(&(((type *)0)->member)))))
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#define USED __attribute__((used))
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int ffs(int x);
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