1 files changed, 9 insertions, 1 deletions
diff --git a/src/hardware/port.h b/src/hardware/port.h
index 8203fea..d083220 100644
--- a/src/hardware/port.h
+++ b/src/hardware/port.h
@@ -12,7 +12,15 @@ void port8_write( port8_t *port, uint8_t data );
 uint8_t port8_read( port8_t *port );
 
 typedef struct {
-	uint16_t number; // port number, e.g. 0x3d4 VGA index register
+	uint16_t number;
+} port16_t;
+
+void port16_init( port16_t *port, uint16_t number );
+void port16_write( port16_t *port, uint16_t data );
+uint16_t port16_read( port16_t *port );
+
+typedef struct {
+	uint16_t number;
 } port32_t;
 
 void port32_init( port32_t *port, uint16_t number );