/*
 * asm/io.h
 *
 * Provides acces to x86 I/O functions
 */

#define inb(port) ({ \
    unsigned char _val; \
    asm volatile ("inb %%dx, %%al" : "=a" (_val) : "d" (port)); \
    _val; \
    })

#define outb(port, val) \
  asm volatile ("outb %%al, %%dx" : : "d" (port), "a" (val));