From c9d1454efcff44dafec0a6b95b99316ecff80dee Mon Sep 17 00:00:00 2001
From: antifallobst <antifallobst@systemausfall.org>
Date: Tue, 14 Feb 2023 22:31:20 +0100
Subject: [PATCH] feature (kernel): Implemented 'io_wait'

---
 kernel/inc/utils/io.h | 1 +
 kernel/src/utils/io.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/kernel/inc/utils/io.h b/kernel/inc/utils/io.h
index a3f5e1a..65947e7 100644
--- a/kernel/inc/utils/io.h
+++ b/kernel/inc/utils/io.h
@@ -21,5 +21,6 @@
 // sends one byte to a port
 void     io_out_byte  (uint16_t port, uint8_t data);
 uint8_t  io_in_byte   (uint16_t port);
+void     io_wait      ();
 
 #endif //NOX_IO_H
diff --git a/kernel/src/utils/io.c b/kernel/src/utils/io.c
index 6cfb015..aafd7be 100644
--- a/kernel/src/utils/io.c
+++ b/kernel/src/utils/io.c
@@ -23,4 +23,8 @@ uint8_t io_in_byte(uint16_t port) {
     uint8_t data;
     asm volatile ("inb %1, %0" : "=a"(data) : "Nd"(port));
     return data;
+}
+
+void io_wait() {
+    io_out_byte(0x80, 0);
 }
\ No newline at end of file