vulcanos/kernel/cpu/ports.asm

21 lines
459 B
NASM
Raw Normal View History

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; iceOS Kernel ;
; Developed by Marco 'icebit' Cetica ;
; (c) 2019 ;
; Released under GPLv3 ;
; https://github.com/ice-bit/iceOS ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
global outb ; Output from port
global inb ; Input to port
outb:
mov al, [esp + 3]
mov dx, [esp + 4]
out dx, al
ret
inb:
mov dx, [esp]
in al, dx
ret