#ifndef PORTS_H #define PORTS_H #include uint8_t port_byte_in(uint16_t port); void port_byte_out(uint16_t port,uint8_t data); uint16_t port_word_in(uint16_t port); void port_word_out(uint16_t port,uint16_t data); uint32_t port_long_in(uint16_t port); void port_long_out(uint16_t port,uint32_t data); #endif