[bits 32]

global port_write8
global port_read8

; typedef enum port_type_t {
;	PORT_TYPE_8BIT = 0,
;	PORT_TYPE_8BIT_SLOW = 1,
;	PORT_TYPE_16BIT = 2,
;	PORT_TYPE_32BIT = 3
; } port_type_t;
PORT_TYPE_8BIT equ 0
PORT_TYPE_8BIT_SLOW equ 1
PORT_TYPE_16BIT equ 2
PORT_TYPE_32BIT equ 3

; void port_write8( port_t *port, uint8_t data );
port_write8:
	push ebp
	mov ebp, esp
	mov ecx, [ebp+8]
	mov edx, DWORD [ecx]
	cmp edx, PORT_TYPE_8BIT
	je .ok
	int 10
.ok:
	mov edx, DWORD [ecx+4]
	movzx ax, BYTE [ebp+12]
	out dx, al
	leave
	ret

; uint8_t port_read8( port_t *port )
port_read8:
	push ebp
	mov ebp, esp
	mov ecx, DWORD [ebp+8]
	mov edx, DWORD [ecx]
	cmp edx, PORT_TYPE_8BIT
	je .ok
	int 11
.ok:
	mov edx, [ecx+4]
	in al, dx
	leave
	ret