比如：
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);
话说有讲解这些东西的资料没？
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楼主
