Implement Arm BKPT instruction.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1740 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 538e17a..5804df8 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -127,6 +127,7 @@
         offset = 0;
         break;
     case EXCP_PREFETCH_ABORT:
+    case EXCP_BKPT:
         new_mode = ARM_CPU_MODE_ABT;
         addr = 0x0c;
         mask = CPSR_A | CPSR_I;