diff --git a/trunk/bootrom/build/libraries/os/common/os_exception.c b/trunk/bootrom/build/libraries/os/common/os_exception.c
index 07df6b9..c1fa31a 100644
--- a/trunk/bootrom/build/libraries/os/common/os_exception.c
+++ b/trunk/bootrom/build/libraries/os/common/os_exception.c
@@ -32,7 +32,14 @@ void i_osUndefInstHandler( void );
 void osInitException( void )
 {
 #ifdef SDK_ARM11
-    *(OSExcpHandler*)HW_UDEF_VECTOR_BUF = i_osUndefInstHandler;
+    static BOOL isInit;
+
+    if ( isInit == FALSE )
+    {
+        isInit = TRUE;
+
+        *(OSExcpHandler*)HW_UDEF_VECTOR_BUF = i_osUndefInstHandler;
+    }
 #endif // SDK_ARM11
 }
 
@@ -77,18 +84,18 @@ ASM void i_osUndefInstHandler( void )
         adr     lr, i_return
 
         tst     r0, #HW_PSR_THUMB_STATE
-        bne     i_stupUndefInstHandlerDummy
+        bne     i_osUndefInstTerminate
 
         tst     r0, #HW_PSR_JAVA_STATE
-        bne     i_stupUndefInstHandlerDummy
+        bne     i_osUndefInstTerminate
 
         ldr     r0,  [r12, #0]              // called from ARM
         mov     r12, r0, lsl #4
         sub     r12, r12, #0xC0000000
         cmp     r12, #0x30000000
-        bhs     i_stupUndefInstHandlerDummy
+        bhs     i_osUndefInstTerminate
 
-        adr     r12, i_return
+        adr     r12, i_osUndefCPHandlerTable
         and     r0,  r0, #0x00000F00
         ldr     pc, [r12, r0, lsr #8-2]
 
@@ -99,26 +106,26 @@ i_return
 
         INASM_EXTERN( _VFP_Computation_Engine )
 
-i_stupUndefCPHandlerTable
-        DCD     i_stupUndefInstHandlerDummy   // CP 0
-        DCD     i_stupUndefInstHandlerDummy   // CP 1
-        DCD     i_stupUndefInstHandlerDummy   // CP 2
-        DCD     i_stupUndefInstHandlerDummy   // CP 3
-        DCD     i_stupUndefInstHandlerDummy   // CP 4
-        DCD     i_stupUndefInstHandlerDummy   // CP 5
-        DCD     i_stupUndefInstHandlerDummy   // CP 6
-        DCD     i_stupUndefInstHandlerDummy   // CP 7
-        DCD     i_stupUndefInstHandlerDummy   // CP 8
-        DCD     i_stupUndefInstHandlerDummy   // CP 9
-        DCD     i_vfpUndefInstHandler         // CP 10
-        DCD     i_vfpUndefInstHandler         // CP 11
-        DCD     i_stupUndefInstHandlerDummy   // CP 12
-        DCD     i_stupUndefInstHandlerDummy   // CP 13
-        DCD     i_stupUndefInstHandlerDummy   // CP 14
-        DCD     i_stupUndefInstHandlerDummy   // CP 15
+i_osUndefCPHandlerTable
+        DCD     i_osUndefInstTerminate   // CP 0
+        DCD     i_osUndefInstTerminate   // CP 1
+        DCD     i_osUndefInstTerminate   // CP 2
+        DCD     i_osUndefInstTerminate   // CP 3
+        DCD     i_osUndefInstTerminate   // CP 4
+        DCD     i_osUndefInstTerminate   // CP 5
+        DCD     i_osUndefInstTerminate   // CP 6
+        DCD     i_osUndefInstTerminate   // CP 7
+        DCD     i_osUndefInstTerminate   // CP 8
+        DCD     i_osUndefInstTerminate   // CP 9
+        DCD     i_osUndefInstHandlerVFP  // CP 10
+        DCD     i_osUndefInstHandlerVFP  // CP 11
+        DCD     i_osUndefInstTerminate   // CP 12
+        DCD     i_osUndefInstTerminate   // CP 13
+        DCD     i_osUndefInstTerminate   // CP 14
+        DCD     i_osUndefInstTerminate   // CP 15
 }
 
-ASM void i_vfpUndefInstHandler( void )
+ASM void i_osUndefInstHandlerVFP( void )
 {
         // VFP enable
         fmrx    r12, fpexc
@@ -142,7 +149,7 @@ LSYM(1)
         bx      lr
 }
 
-ASM void i_stupUndefInstHandlerDummy( void )
+ASM void i_osUndefInstTerminate( void )
 {
 LSYM(1)
         b       BSYM(1)