--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/paper/xv6_interface.txt	Tue Feb 05 01:47:08 2019 +0900
@@ -0,0 +1,28 @@
+struct {
+    struct spinlock lock;
+    struct proc proc[NPROC];
+} ptable;
+
+static struct proc *initproc;
+struct proc *proc;
+
+
+struct Scheduler () {
+    union Data * sched;
+    union Data * ptable;
+
+}
+
+scheduler() {
+    sti();
+    acquire(&ptable.lock);
+    goto scheduler1();
+}
+
+scheduler1() {
+    if (ptable.proc < &ptable.proc[NPROC]){
+        if(p->state != RUNNABLE) {
+            goto scheduler1();
+        }
+    }
+}