/* portio.h */

static __inline unsigned char inb(unsigned int port);
static __inline void outb(unsigned int port, unsigned char data);

static __inline unsigned char
inb(unsigned int port)
{
   unsigned char data;
   __asm __volatile("inb %%dx,%0" : "=a" (data) : "d" (port));
   return(data);
}

static __inline void
outb(unsigned int port, unsigned char data)
{
   unsigned char al;
   al = data;
   __asm __volatile("outb %0, %%dx" : : "a" (al), "d" (port));
}