adds some more io commnads; starts work on a PCI driver

kernel/arch/io/io.s

@@ -9,8 +9,25 @@ outb:
 	out dx, al		; send the data to the I/O port
 	ret			; return to the calling function
 
+
+global outb_16
+outb_16:
+	mov ax, [esp + 8]
+	mov dx, [esp + 4]
+	out dx, ax
+	ret
+
+
+
+global outb_32
+outb_32:
+	mov eax, [esp + 8]
+	mov dx, [esp + 4]
+	out dx, eax
+	ret
+
 global inb
-; inb - returns a byte from the given I/O port
+; inb - returns a byte from the given I/O porot
 ; stack: [esp + 4] The address of the I/O port
 ;  	 [esp    ] The return address
 inb:
@@ -18,9 +35,24 @@ inb:
 	in al, dx		; read a byte from the I/O port and store it in the al register
 	ret			; return the read byte
 
+global inb_16
+inb_16:
+	mov dx, [esp + 4]
+	in ax, dx
+	ret
+
+global inb_32
+inb_32:
+	mov dx, [esp + 4]
+	in eax, dx
+	ret
+
 
 global io_wait
 io_wait:
 	mov al, 0x0
 	out 0x80, al
 	ret
+
+
+