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-rw-r--r--kernel/io.c7
1 files changed, 7 insertions, 0 deletions
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;