#include static inline void port_out8(uint16_t port, uint8_t val) { asm volatile("outb %0, %1" : : "a" (val), "Nd" (port)); } static inline void port_out16(uint16_t port, uint16_t val) { asm volatile("outw %0, %1" : : "a" (val), "Nd" (port)); } static inline void port_out32(uint16_t port, uint32_t val) { asm volatile("outl %0, %1" : : "a" (val), "Nd" (port)); } static inline uint8_t port_in8(uint16_t port) { uint8_t val; asm volatile("inb %1, %0" : "=a" (val) : "Nd" (port)); return val; } static inline uint16_t port_in16(uint16_t port) { uint16_t val; asm volatile("inw %1, %0" : "=a" (val) : "Nd" (port)); return val; } static inline uint32_t port_in32(uint16_t port) { uint32_t val; asm volatile("inl %1, %0" : "=a" (val) : "Nd" (port)); return val; }