idle implementation.

2013-05-28 11:00:52 +09:00
parent 699344840b
commit 6c1bfe000b
3 changed files with 9 additions and 7 deletions
--- a/chopstx.c
+++ b/chopstx.c
@@ -289,6 +289,14 @@ chx_ready_enqueue (struct chx_thread *tp)
  chx_UNLOCK (&q_ready.lock);
 }

+static void __attribute__((naked, used))
+idle (void)
+{
+  for (;;)
+    asm volatile ("wfi" : : : "memory");
+}
+
+
 /* Registers on stack (PSP): r0, r1, r2, r3, r12, lr, pc, xpsr */
 static void __attribute__ ((naked,used))
 sched (void)