Added support for exception handling while in vm86 mode.
Fixed a couple of bugs in vm86 support.

diff --git a/dlls/ntdll/signal_sparc.c b/dlls/ntdll/signal_sparc.c
index b2ebff9..c878a9f 100644
--- a/dlls/ntdll/signal_sparc.c
+++ b/dlls/ntdll/signal_sparc.c
@@ -349,6 +349,14 @@
 }
 
 /**********************************************************************
+ *		__wine_enter_vm86
+ */
+void __wine_enter_vm86( CONTEXT *context )
+{
+    MESSAGE("vm86 mode not supported on this platform\n");
+}
+
+/**********************************************************************
  *              DbgBreakPoint   (NTDLL)
  */
 void WINAPI DbgBreakPoint(void)