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| 1 /* |
| 2 * Copyright 2009 The Native Client Authors. All rights reserved. |
| 3 * Use of this source code is governed by a BSD-style license that can |
| 4 * be found in the LICENSE file. |
| 5 * Copyright 2009, Google Inc. |
| 6 */ |
| 7 |
| 8 #ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_MIPS_MODEL_INL_H |
| 9 #define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_MIPS_MODEL_INL_H |
| 10 /* |
| 11 * Inline definitions for the classes defined in model.h |
| 12 */ |
| 13 |
| 14 namespace nacl_mips_dec { |
| 15 |
| 16 Register::Register(uint32_t number) : _number(number) {} |
| 17 uint32_t Register::bitmask() const { |
| 18 if (_number == 31) return 0; |
| 19 |
| 20 return (1 << _number); |
| 21 } |
| 22 |
| 23 bool Register::operator==(const Register &other) const { |
| 24 return _number == other._number; |
| 25 } |
| 26 |
| 27 bool Register::operator!=(const Register &other) const { |
| 28 return _number != other._number; |
| 29 } |
| 30 |
| 31 |
| 32 RegisterList::RegisterList(uint32_t bits) : _bits(bits) {} |
| 33 RegisterList::RegisterList(Register r) : _bits(r.bitmask()) {} |
| 34 |
| 35 bool RegisterList::operator[](Register r) const { |
| 36 return _bits & r.bitmask(); |
| 37 } |
| 38 |
| 39 bool RegisterList::contains_all(const RegisterList other) const { |
| 40 return (_bits & other._bits) == other._bits; |
| 41 } |
| 42 |
| 43 bool RegisterList::contains_any(const RegisterList other) const { |
| 44 return _bits & other._bits; |
| 45 } |
| 46 |
| 47 const RegisterList RegisterList::operator&(const RegisterList other) const { |
| 48 return RegisterList(_bits & other._bits); |
| 49 } |
| 50 |
| 51 bool RegisterList::operator==(const RegisterList other) const { |
| 52 return _bits == other._bits; |
| 53 } |
| 54 |
| 55 const RegisterList operator+(const RegisterList a, const RegisterList b) { |
| 56 return RegisterList(a._bits | b._bits); |
| 57 } |
| 58 |
| 59 |
| 60 inline Instruction::Instruction(uint32_t bits) : _bits(bits) {} |
| 61 |
| 62 inline uint32_t Instruction::bits(int hi, int lo) const { |
| 63 uint32_t right_justified = _bits >> lo; |
| 64 int bit_count = hi - lo + 1; |
| 65 uint32_t mask = (1 << bit_count) - 1; |
| 66 return right_justified & mask; |
| 67 } |
| 68 |
| 69 inline const Register Instruction::reg(int hi, int lo) const { |
| 70 return Register(bits(hi, lo)); |
| 71 } |
| 72 |
| 73 inline bool Instruction::bit(int index) const { |
| 74 return (_bits >> index) & 1; |
| 75 } |
| 76 |
| 77 inline uint32_t Instruction::operator&(uint32_t mask) const { |
| 78 return _bits & mask; |
| 79 } |
| 80 |
| 81 } // namespace |
| 82 |
| 83 #endif // NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_MIPS_MODEL_INL_H |
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