cleans up the arch folder some

kernel/arch/io/io.s

@@ -0,0 +1,20 @@
+global outb
+; out b - send a byte to an I/O port
+; stack: [esp + 8] the data byte
+;   	 [esp + 4] the I/O port
+;	 [esp    ] return address
+outb:
+	mov al, [esp + 8]
+	mov dx, [esp + 4]	; move the address into dx
+	out dx, al		; send the data to the I/O port
+	ret			; return to the calling function
+
+global inb
+; inb - returns a byte from the given I/O port
+; stack: [esp + 4] The address of the I/O port
+;  	 [esp    ] The return address
+inb:
+	mov dx, [esp + 4]	; move the address of the I/O port to the dx register
+	in al, dx		; read a byte from the I/O port and store it in the al register
+	ret			; return the read byte
+