Intial Thumb2 Sandbox (naclrev 6680)

src/trusted/validator_arm/model.h

 /*
- * Copyright 2009 The Native Client Authors.  All rights reserved.
+ * Copyright 2011 The Native Client Authors.  All rights reserved.
  * Use of this source code is governed by a BSD-style license that can
  * be found in the LICENSE file.
- * Copyright 2009, Google Inc.
+ * Copyright 2011, Google Inc.
  */
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_ARM_V2_MODEL_H
 #define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_ARM_V2_MODEL_H
 
 /*
  * Models instructions and decode results.
  *
  * Implementation Note:
  * All the classes in this file are designed to be fully inlined as 32-bit
@@ skipping 116 matching lines @@
  * Returns a new RegisterList that contains the union of two lists.
  *
  * This is not a member function to allow implicit conversion of Register.
  */
 inline const RegisterList operator+(const RegisterList, const RegisterList);
 
 /*
  * A list containing every possible register, even some we don't define.
  * Used exclusively as a bogus scary return value for forbidden instructions.
  */
 static const RegisterList kRegisterListEverything = RegisterList(-1);

[Karl, 2011/08/30 19:53:52]

Why are we passing a NEGATIVE number into a uint_t value?

 
+/*
+ * A register list which contains no registers.
+ */
+static const RegisterList kRegisterListNothing = RegisterList(0);
 
 /*
  * A 32-bit ARM instruction of unspecified type.
  *
  * This class is designed for efficiency:
  *  - Its public methods for bitfield extraction are short and inline.
  *  - It has no vtable, so on 32-bit platforms it's exactly the size of the
  *    instruction it models.
  */
 class Instruction {
@@ skipping 47 matching lines @@
  private:
   uint32_t _bits;
 };
 
 }  // namespace
 
 // Definitions for our inlined functions.
 #include "native_client/src/trusted/validator_arm/model-inl.h"
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_ARM_V2_MODEL_H