From 48e33bd3ee5f62f1b27d8a7aa6cfb697b497e03f Mon Sep 17 00:00:00 2001
From: Franklin Wei <frankhwei536@gmail.com>
Date: Thu, 5 Feb 2015 20:57:30 -0500
Subject: add outw function

---
 kernel/include/io.h | 1 +
 kernel/io.c         | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/kernel/include/io.h b/kernel/include/io.h
index c3c735b..d1177ac 100644
--- a/kernel/include/io.h
+++ b/kernel/include/io.h
@@ -1,4 +1,5 @@
 #include <stdint.h>
 void outb(uint16_t port, uint8_t val);
+void outw(uint16_t port, uint16_t val);
 uint8_t inb(uint16_t port);
 uint16_t inw(uint16_t port);
diff --git a/kernel/io.c b/kernel/io.c
index 9b56b5d..33b7f7c 100644
--- a/kernel/io.c
+++ b/kernel/io.c
@@ -5,12 +5,19 @@ void outb(uint16_t port, uint8_t val)
 {
     asm volatile ("outb %1, %0": :"dN" (port), "a" (val));
 }
+
+void outw(uint16_t port, uint16_t val)
+{
+    asm volatile ("outw %1, %0": :"dN" (port), "a"(val));
+}
+
 uint8_t inb(uint16_t port)
 {
     uint8_t ret;
     asm volatile ("inb %1, %0" : "=a" (ret) : "dN" (port));
     return ret;
 }
+
 uint16_t inw(uint16_t port)
 {
     uint16_t ret;
-- 
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