问一个新问题,ccs头文件里边的好多函数不知道什么意思,在哪里看函数功能介绍。比如unsigned short __get_SP_register(void);
void __set_SP_register(unsigned short value);
void __delay_cycles(unsigned long cycles);
unsigned int __even_in_range(unsigned int val, unsigned int range);
void __op_code(unsigned short op);,找不到源函数在哪
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