Index: win32/thread-win32.c
===================================================================
RCS file: /cvsroot/rockbox/uisimulator/win32/thread-win32.c,v
retrieving revision 1.7
diff -u -r1.7 thread-win32.c
--- win32/thread-win32.c	4 Dec 2005 12:18:01 -0000	1.7
+++ win32/thread-win32.c	7 Dec 2005 23:14:12 -0000
@@ -33,15 +33,21 @@
 
 void yield(void)
 {
+	/* do a real sleep from time to time */
+	static unsigned char AntiCpuHog = 0;
+	AntiCpuHog++;
     LeaveCriticalSection(&CriticalSection);
-    Sleep(1);
+	Sleep(AntiCpuHog ? 0 : 1);
     EnterCriticalSection(&CriticalSection);
 }
 
 void sim_sleep(int ticks)
 {
+	/* always sleep a significant amount */
     LeaveCriticalSection(&CriticalSection);
-    Sleep((1000/HZ) * ticks);
+	int sleeptime = (1000/HZ) * ticks;
+	if(sleeptime < 1) sleeptime = 1;
+    Sleep(sleeptime);
     EnterCriticalSection(&CriticalSection);
 }