#ifndef PORT_IO_H
#define PORT_IO_H

#include <stdint.h>

static inline void outb(uint16_t port, uint8_t val)
{
    asm volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) );
}

static inline uint8_t inb(uint16_t port)
{
    uint8_t ret;
    asm volatile ( "inb %w1, %b0" : "=a"(ret) : "Nd"(port) );
    return ret;
}

static inline void io_wait(void)
{
    /* Port 0x80 is used for 'checkpoints' during POST. */
    /* The Linux kernel seems to think it is free for use :-/ */
    asm volatile ( "outb %%al, $0x80" : : "a"(0) );
}

#endif