diff --git a/cpu/bf533/interrupt.S b/cpu/bf533/interrupt.S
index e780dc6..a5de96b 100644
--- a/cpu/bf533/interrupt.S
+++ b/cpu/bf533/interrupt.S
@@ -40,225 +40,80 @@
  */
 
 #define ASSEMBLY
-
+#include <config.h>
+#include <asm/blackfin.h>
 #include <asm/hw_irq.h>
 #include <asm/entry.h>
 #include <asm/blackfin_defs.h>
-#include <asm/cpu/bf533_irq.h>
 
-.global blackfin_irq_panic;
+.global _blackfin_irq_panic;
 
 .text
 .align 2
 
 #ifndef CONFIG_KGDB
-.global evt_emulation
-evt_emulation:
+.global _evt_emulation
+_evt_emulation:
 	SAVE_CONTEXT
 	r0 = IRQ_EMU;
 	r1 = seqstat;
 	sp += -12;
-	call blackfin_irq_panic;
+	call _blackfin_irq_panic;
 	sp += 12;
 	rte;
 #endif
 
-.global evt_nmi
-evt_nmi:
+.global _evt_nmi
+_evt_nmi:
 	SAVE_CONTEXT
 	r0 = IRQ_NMI;
 	r1 = RETN;
 	sp += -12;
-	call blackfin_irq_panic;
+	call _blackfin_irq_panic;
 	sp += 12;
 
 _evt_nmi_exit:
 	rtn;
 
-.global trap
-trap:
-	[--sp] = r0;
-	[--sp] = r1;
-	[--sp] = p0;
-	[--sp] = p1;
-	[--sp] = astat;
-	r0 = seqstat;
-	R0 <<= 26;
-	R0 >>= 26;
-	p0 = r0;
-	p1.l = EVTABLE;
-	p1.h = EVTABLE;
-	p0 = p1 + (p0 << 1);
-	r1 = W[p0] (Z);
-	p1 = r1;
-	jump (pc + p1);
+.global _trap
+_trap:
+	SAVE_ALL_SYS
+	r0 = sp;        /* stack frame pt_regs pointer argument ==> r0 */
+	sp += -12;
+	call _trap_c
+	sp += 12;
+	RESTORE_ALL_SYS
+	rtx;
 
-.global _EVENT1
-_EVENT1:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT2
-_EVENT2:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT3
-_EVENT3:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT4
-_EVENT4:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT5
-_EVENT5:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT6
-_EVENT6:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT7
-_EVENT7:
-	RAISE 15;
-	JUMP.S _EXIT;
-
-.global _EVENT8
-_EVENT8:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT9
-_EVENT9:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT10
-_EVENT10:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT11
-_EVENT11:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT12
-_EVENT12:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT13
-_EVENT13:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT14
-_EVENT14:
-/*	RAISE 14;	*/
-	CALL	_cplb_hdr;
-	JUMP.S _EXIT;
-
-.global _EVENT19
-_EVENT19:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT20
-_EVENT20:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EVENT21
-_EVENT21:
-	RAISE 14;
-	JUMP.S _EXIT;
-
-.global _EXIT
-_EXIT:
-	ASTAT = [sp++];
-	p1 = [sp++];
-	p0 = [sp++];
-	r1 = [sp++];
-	r0 = [sp++];
-	RTX;
-
-EVTABLE:
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x0000;
-	.byte2 0x003E;
-	.byte2 0x0042;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte4 0x0000;
-	.byte2 0x0000;
-	.byte2 0x001E;
-	.byte2 0x0022;
-	.byte2 0x0032;
-	.byte2 0x002e;
-	.byte2 0x0002;
-	.byte2 0x0036;
-	.byte2 0x002A;
-	.byte2 0x001A;
-	.byte2 0x0016;
-	.byte2 0x000A;
-	.byte2 0x000E;
-	.byte2 0x0012;
-	.byte2 0x0006;
-	.byte2 0x0026;
-
-.global evt_rst
-evt_rst:
+.global _evt_rst
+_evt_rst:
 	SAVE_CONTEXT
 	r0 = IRQ_RST;
 	r1 = RETN;
 	sp += -12;
-	call do_reset;
+	call _do_reset;
 	sp += 12;
 
 _evt_rst_exit:
-	rtn;
+	rtn; 
 
 irq_panic:
 	r0 = IRQ_EVX;
 	r1 =  sp;
 	sp += -12;
-	call blackfin_irq_panic;
+	call _blackfin_irq_panic;
 	sp += 12;
 
-.global evt_ivhw
-evt_ivhw:
+.global _evt_ivhw
+_evt_ivhw:
 	SAVE_CONTEXT
 	RAISE 14;
 
 _evt_ivhw_exit:
 	 rti;
 
-.global evt_timer
-evt_timer:
+.global _evt_timer
+_evt_timer:
 	SAVE_CONTEXT
 	r0 = IRQ_CORETMR;
 	sp += -12;
@@ -269,91 +124,91 @@
 	rti;
 	nop;
 
-.global evt_evt7
-evt_evt7:
+.global _evt_evt7
+_evt_evt7:
 	SAVE_CONTEXT
 	r0 = 7;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt7_exit:
 	RESTORE_CONTEXT
-	rti;
+	rti; 
 
-.global evt_evt8
-evt_evt8:
+.global _evt_evt8
+_evt_evt8:
 	SAVE_CONTEXT
 	r0 = 8;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt8_exit:
 	RESTORE_CONTEXT
 	rti;
 
-.global evt_evt9
-evt_evt9:
+.global _evt_evt9
+_evt_evt9:
 	SAVE_CONTEXT
 	r0 = 9;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt9_exit:
 	RESTORE_CONTEXT
 	rti;
 
-.global evt_evt10
-evt_evt10:
+.global _evt_evt10
+_evt_evt10:
 	SAVE_CONTEXT
 	r0 = 10;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt10_exit:
 	RESTORE_CONTEXT
 	rti;
 
-.global evt_evt11
-evt_evt11:
+.global _evt_evt11
+_evt_evt11:
 	SAVE_CONTEXT
 	r0 = 11;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt11_exit:
 	RESTORE_CONTEXT
 	rti;
 
-.global evt_evt12
-evt_evt12:
+.global _evt_evt12
+_evt_evt12:
 	SAVE_CONTEXT
 	r0 = 12;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 evt_evt12_exit:
 	 RESTORE_CONTEXT
 	 rti;
 
-.global evt_evt13
-evt_evt13:
+.global _evt_evt13
+_evt_evt13:
 	SAVE_CONTEXT
 	r0 = 13;
 	sp += -12;
-	call process_int;
+	call _process_int;
 	sp += 12;
 
 evt_evt13_exit:
 	 RESTORE_CONTEXT
 	 rti;
 
-.global evt_system_call
-evt_system_call:
+.global _evt_system_call
+_evt_system_call:
 	[--sp] = r0;
 	[--SP] = RETI;
 	r0 = [sp++];
@@ -363,7 +218,7 @@
 	r0 = [SP++];
 	SAVE_CONTEXT
 	sp += -12;
-	call display_excp;
+	call _exception_handle;
 	sp += 12;
 	RESTORE_CONTEXT
 	RTI;
@@ -371,8 +226,8 @@
 evt_system_call_exit:
 	rti;
 
-.global evt_soft_int1
-evt_soft_int1:
+.global _evt_soft_int1
+_evt_soft_int1:
 	[--sp] = r0;
 	[--SP] = RETI;
 	r0 = [sp++];
@@ -382,7 +237,7 @@
 	r0 = [SP++];
 	SAVE_CONTEXT
 	sp += -12;
-	call display_excp;
+	call _exception_handle;
 	sp += 12;
 	RESTORE_CONTEXT
 	RTI;