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[DM] Extended drivers MISC interface

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1. RT_FIELD_PREP: prepare a bitfield element.
2. RT_FIELD_GET: extract a bitfield element.
3. rt_offsetof: member offset of a struct
4. rt_upper_32_bits: high 32 bits of value.
5. rt_lower_32_bits: lower 32 bits of value.
6. rt_upper_16_bits: high 16 bits of value.
7. rt_lower_16_bits: lower 16 bits of value.
8. rt_max_t: fix type of max(...).
9. rt_ilog2: integer logarithm base 2.

Signed-off-by: GuEe-GUI <2991707448@qq.com>
This commit is contained in:
GuEe-GUI
2024-05-30 17:30:03 +08:00
committed by Meco Man
parent 9631f04abe
commit 802a6ed2ca
3 changed files with 50 additions and 1 deletions
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include/rtthread.h
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@@ -787,6 +787,7 @@ rt_device_t rt_console_get_device(void);
#endif /* defined(RT_USING_DEVICE) && defined(RT_USING_CONSOLE) */
int __rt_ffs(int value);
unsigned long __rt_ffsl(unsigned long value);
void rt_show_version(void);