1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/x86.h b/kernel/x86.h
new file mode 100644
index 0000000..1f2179d
--- /dev/null
+++ b/kernel/x86.h
@@ -0,0 +1,42 @@
+#ifndef FOOLOS_X86_H
+#define FOOLOS_X86_H
+
+#include "kernel.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;
+}
+
+#endif