quark/src/kernel/arch/i686/io.asm

global i686_inb
i686_inb:
    [bits 32]
    mov dx, [esp + 4]
    xor eax, eax
    in al, dx
    ret

global i686_outb
i686_outb:
    [bits 32]
    mov dx, [esp + 4]
    mov al, [esp + 8]
    out dx, al
    ret

global i686_inw
i686_inw:
    [bits 32]
    mov dx, [esp + 4]
    xor eax, eax
    in ax, dx
    ret

global i686_outw
i686_outw:
    [bits 32]
    mov dx, [esp + 4]
    mov ax, [esp + 8]
    out dx, ax
    ret