diff --git a/sim/arm/ChangeLog b/sim/arm/ChangeLog
index e73d7f21c96..d316d01cb2d 100644
--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jun  2 15:22:22 1998  Nick Clifton  <nickc@cygnus.com>
+
+	* armos.h: Add Angel SWI and its reason codes.
+	* armos.c (ARMul_OSHandleSWI): Ignore Angel SWIs (for now).
+
 Mon Jun  1 17:14:19 1998  Anthony Thompson (athompso@cambridge.arm.com)
 
 	* armos.c (ARMul_OSHandleSWI::SWI_Open): Handle special case
diff --git a/sim/arm/armos.c b/sim/arm/armos.c
index 4eb672de16d..71ca8ff45e1 100644
--- a/sim/arm/armos.c
+++ b/sim/arm/armos.c
@@ -296,6 +296,8 @@ unsigned ARMul_OSHandleSWI(ARMul_State *state,ARMword number)
       {
 	char dummy[2000];
 	int i;
+	int flags;
+	
 	for (i = 0; 
 	     dummy[i] = ARMul_ReadByte(state, state->Reg[0] + i);
 	     i++)
@@ -417,6 +419,11 @@ unsigned ARMul_OSHandleSWI(ARMul_State *state,ARMword number)
           } while (temp != 0) ;
        return(TRUE) ;
 
+    case AngelSWI_ARM:
+    case AngelSWI_Thumb:
+      /* Ignore these SWIs (for now).  */
+      return TRUE;
+      
     default :
       state->Emulate = FALSE ;      
       return(FALSE) ;