42_KFS/libbozo/headers/sys/io.h

16 lines
358 B
C
Raw Normal View History

2024-09-07 08:40:46 -04:00
#pragma once
static inline void outb(uint16_t port, uint8_t val)
{
__asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
}
static inline uint8_t inb(uint16_t port)
{
uint8_t ret;
__asm__ volatile ( "inb %w1, %b0"
: "=a"(ret)
: "Nd"(port)
: "memory");
return ret;
}