Clean up AMD64 memory management code, remove dependency on pd.lock

init/init.c

@@ -8,6 +8,8 @@
 
 #define MUTEX 2000
 
+/* __thread char letter; */
+
 void app_thread1 (void);
 
 int spawn (void (*fn) (void)) {
@@ -23,26 +25,30 @@ int spawn (void (*fn) (void)) {
 void app_main (void) {
   mutex_create (MUTEX);
 
+  /* letter = 'd'; */
+
   spawn (&app_thread1);
 
   for (;;) {
-    mutex_lock (MUTEX);
+    /* mutex_lock (MUTEX); */
 
-    for (int i = 0; i < 3; i++)
-      test ('a');
+    /* for (int i = 0; i < 3; i++) */
+    /*   test (letter); */
 
-    mutex_unlock (MUTEX);
+    /* mutex_unlock (MUTEX); */
   }
 }
 
 void app_thread1 (void) {
+  /* letter = 'c'; */
+
   for (;;) {
-    mutex_lock (MUTEX);
+    /* mutex_lock (MUTEX); */
 
-    for (int i = 0; i < 3; i++)
-      test ('b');
+    /* for (int i = 0; i < 3; i++) */
+    /*   test (letter); */
 
-    mutex_unlock (MUTEX);
+    /* mutex_unlock (MUTEX); */
   }
 
   quit ();