#ifndef BIOS_IOPORT_H #define BIOS_IOPORT_H 1 static inline void outsb(unsigned short port, void *buf, int len) { asm volatile("rep outsb %%ds:(%0), %3" : "=S" (buf), "=c" (len) : "m"(buf), "Nd"(port), "0" (buf), "1" (len)); } static inline void insb(void *buf, unsigned short port, int len) { asm volatile("rep insb %3, %%es:(%0)" : "=D" (buf), "=c" (len), "=m"(buf) : "Nd"(port), "0" (buf), "1" (len)); } static inline unsigned char inb(unsigned short port) { unsigned char val; asm volatile("inb %1, %0" : "=a"(val) : "Nd"(port)); return val; } static inline unsigned short inw(unsigned short port) { unsigned short val; asm volatile("inw %1, %0" : "=a"(val) : "Nd"(port)); return val; } static inline unsigned inl(unsigned short port) { unsigned val; asm volatile("inl %1, %0" : "=a"(val) : "Nd"(port)); return val; } static inline void outb(unsigned short port, unsigned char val) { asm volatile("outb %0, %1" : : "a"(val), "Nd"(port)); } static inline void outw(unsigned short port, unsigned short val) { asm volatile("outw %0, %1" : : "a"(val), "Nd"(port)); } static inline void outl(unsigned short port, unsigned val) { asm volatile("outl %0, %1" : : "a"(val), "Nd"(port)); } #endif