From dc164927e71d760a41494ab1edf8e3deeda401db Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Wed, 20 Aug 2014 15:55:03 +0200
Subject: started implementing floppy driver etc.

---
 kernel/x86.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 kernel/x86.c

(limited to 'kernel/x86.c')

diff --git a/kernel/x86.c b/kernel/x86.c
new file mode 100644
index 0000000..ee38599
--- /dev/null
+++ b/kernel/x86.c
@@ -0,0 +1,38 @@
+#include "x86.h"
+
+void x86_outb(int port, uint8_t data)
+{
+    __asm __volatile("outb %0,%w1" : : "a" (data), "d" (port));
+}
+
+uint8_t x86_inb(int port)
+{
+    uint8_t data;
+    __asm __volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+    return data;
+}
+
+void x86_outw(int port, uint16_t data)
+{
+    __asm __volatile("outw %0,%w1" : : "a" (data), "d" (port));
+}
+
+uint16_t x86_inw(int port)
+{
+    uint16_t data;
+    __asm __volatile("inw %w1,%0" : "=a" (data) : "d" (port));
+    return data;
+}
+
+void x86_outl(int port, uint32_t data)
+{
+    __asm __volatile("outl %0,%w1" : : "a" (data), "d" (port));
+}
+
+uint32_t x86_inl(int port)
+{
+    uint32_t data;
+    __asm __volatile("inl %w1,%0" : "=a" (data) : "d" (port));
+    return data;
+}
+
-- 
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