这是intrinsics.h头文件，怎么没有__delay_cycles函数啊，用这个函数CCS也编译不通过，我用的CCS6
void           _nop(void);
void           _enable_interrupts(void);
void           _disable_interrupts(void);
unsigned short _swap_bytes(unsigned short a);
unsigned short _bic_SR_register(unsigned short a);
unsigned short _bic_SR_register_on_exit(unsigned short a);
unsigned short _bis_SR_register(unsigned short);
unsigned short _bis_SR_register_on_exit(unsigned short a);
unsigned short _get_SR_register(void);
unsigned short _get_SR_register_on_exit(void);
void           _never_executed(void );

unsigned short _bcd_add_short(unsigned short, unsigned short);
unsigned long  _bcd_add_long(unsigned long, unsigned long);

unsigned int   _even_in_range(unsigned int, unsigned int);
void           _op_code(unsigned short);
void           _data20_write_char(unsigned long, unsigned char);
void           _data20_write_short(unsigned long, unsigned short);
void           _data20_write_long(unsigned long, unsigned long);
unsigned char  _data20_read_char(unsigned long);
unsigned short _data20_read_short(unsigned long);
unsigned long  _data20_read_long(unsigned long);
unsigned short _get_interrupt_state(void);
void           _set_interrupt_state(unsigned short);
unsigned short _get_SP_register(void);
void           _set_SP_register(unsigned short);
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