Implemented KERNEL.447 (WIN32_OldYield16).

diff --git a/if1632/kernel.spec b/if1632/kernel.spec
index 699748a..b930df5 100644
--- a/if1632/kernel.spec
+++ b/if1632/kernel.spec

@@ -351,7 +351,7 @@
 444 pascal16 Local32Info(ptr word) Local32Info16
 445 pascal16 Local32First(ptr word) Local32First16
 446 pascal16 Local32Next(ptr) Local32Next16
-447 pascal16 KERNEL_447() KERNEL_nop
+447 pascal16 WIN32_OldYield() WIN32_OldYield16
 448 stub KERNEL_448
 449 pascal GetpWin16Lock() GetpWin16Lock16
 450 pascal VWin32_EventWait(long) VWin32_EventWait

diff --git a/include/wine/winbase16.h b/include/wine/winbase16.h
index ad37c02..5876e2b 100644
--- a/include/wine/winbase16.h
+++ b/include/wine/winbase16.h

@@ -93,6 +93,7 @@
 FARPROC16   WINAPI LocalNotify16(FARPROC16);
 HTASK16     WINAPI LockCurrentTask16(BOOL16);
 VOID        WINAPI OldYield16(void);
+VOID        WINAPI WIN32_OldYield16(void);
 VOID        WINAPI PostEvent16(HTASK16);
 WORD        WINAPI PrestoChangoSelector16(WORD,WORD);
 WORD        WINAPI SelectorAccessRights16(WORD,WORD,WORD);

diff --git a/loader/task.c b/loader/task.c
index 601952e..62f37a4 100644
--- a/loader/task.c
+++ b/loader/task.c

@@ -870,6 +870,16 @@
     if (pCurTask) pCurTask->nEvents--;
 }
 
+/***********************************************************************
+ *           WIN32_OldYield16  (KERNEL.447)
+ */
+void WINAPI WIN32_OldYield16(void)
+{
+   DWORD count;
+
+   ReleaseThunkLock(&count);
+   RestoreThunkLock(count);
+}
 
 /***********************************************************************
  *           DirectedYield  (KERNEL.150)

diff --git a/windows/queue.c b/windows/queue.c
index 7c8afc6..e2275cd 100644
--- a/windows/queue.c
+++ b/windows/queue.c

@@ -1533,12 +1533,7 @@
     if ( THREAD_IsWin16( NtCurrentTeb() ) )
         OldYield16();
     else
-    {
-        DWORD  count;
-
-       ReleaseThunkLock(&count);
-       RestoreThunkLock(count);
-    }
+        WIN32_OldYield16();
 
     /* Handle sent messages again */
     queue = (MESSAGEQUEUE *)QUEUE_Lock( GetFastQueue16() );