diff --git a/lib/timer.c b/lib/timer.c
new file mode 100644
index 0000000..0a284a3
--- /dev/null
+++ b/lib/timer.c
@@ -0,0 +1,22 @@
+#include "idt.h"
+#include "types.h"
+#include "asm.h"
+#include "memory.h"
+#include "timer.h"
+#include "vga.h"
+
+
+static u8 curs[4]={"-\\|/"};
+
+static u8 curspos=0;
+
+
+void timer()
+ {
+  cli();
+	showchar(0,0,curs[curspos],7);
+	curspos=(curspos+1)&0x3;	
+	irqendmaster();
+	sti();
+  asm("addl $0x1C,%esp;iret;");
+  }