Fix the ARM simulator's stop support and add conditional breakpoint....

src/arm/constants-arm.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 334 matching lines @@
   // Test for special encodings of type 0 instructions (extra loads and stores,
   // as well as multiplications).
   inline bool IsSpecialType0() const { return (Bit(7) == 1) && (Bit(4) == 1); }
 
   // Test for miscellaneous instructions encodings of type 0 instructions.
   inline bool IsMiscType0() const { return (Bit(24) == 1)
                                            && (Bit(23) == 0)
                                            && (Bit(20) == 0)
                                            && ((Bit(7) == 0)); }
 
+  // Test for a stop instruction.
+  inline bool IsStop() const {
+    return (TypeField() == 7) && (Bit(24) == 1) && (SvcField() >= stop);
+  }
+
   // Special accessors that test for existence of a value.
   inline bool HasS()    const { return SField() == 1; }
   inline bool HasB()    const { return BField() == 1; }
   inline bool HasW()    const { return WField() == 1; }
   inline bool HasL()    const { return LField() == 1; }
   inline bool HasU()    const { return UField() == 1; }
   inline bool HasSign() const { return SignField() == 1; }
   inline bool HasH()    const { return HField() == 1; }
   inline bool HasLink() const { return LinkField() == 1; }
 
@@ skipping 54 matching lines @@
   static int Number(const char* name, bool* is_double);
 
  private:
   static const char* names_[kNumVFPRegisters];
 };
 
 
 } }  // namespace assembler::arm
 
 #endif  // V8_ARM_CONSTANTS_ARM_H_