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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ART_RUNTIME_ARCH_MIPS_REGISTERS_MIPS_H_
     18 #define ART_RUNTIME_ARCH_MIPS_REGISTERS_MIPS_H_
     19 
     20 #include <iosfwd>
     21 
     22 #include "base/logging.h"
     23 #include "base/macros.h"
     24 #include "globals.h"
     25 
     26 namespace art {
     27 namespace mips {
     28 
     29 enum Register {
     30   ZERO =  0,
     31   AT   =  1,  // Assembler temporary.
     32   V0   =  2,  // Values.
     33   V1   =  3,
     34   A0   =  4,  // Arguments.
     35   A1   =  5,
     36   A2   =  6,
     37   A3   =  7,
     38   T0   =  8,  // Two extra arguments / temporaries.
     39   T1   =  9,
     40   T2   = 10,  // Temporaries.
     41   T3   = 11,
     42   T4   = 12,
     43   T5   = 13,
     44   T6   = 14,
     45   T7   = 15,
     46   S0   = 16,  // Saved values.
     47   S1   = 17,
     48   S2   = 18,
     49   S3   = 19,
     50   S4   = 20,
     51   S5   = 21,
     52   S6   = 22,
     53   S7   = 23,
     54   T8   = 24,  // More temporaries.
     55   T9   = 25,
     56   K0   = 26,  // Reserved for trap handler.
     57   K1   = 27,
     58   GP   = 28,  // Global pointer.
     59   SP   = 29,  // Stack pointer.
     60   FP   = 30,  // Saved value/frame pointer.
     61   RA   = 31,  // Return address.
     62   TR   = S1,  // ART Thread Register
     63   TMP  = T8,  // scratch register (in addition to AT)
     64   kNumberOfCoreRegisters = 32,
     65   kNoRegister = -1  // Signals an illegal register.
     66 };
     67 std::ostream& operator<<(std::ostream& os, const Register& rhs);
     68 
     69 // Values for single-precision floating point registers.
     70 enum FRegister {
     71   F0  =  0,
     72   F1  =  1,
     73   F2  =  2,
     74   F3  =  3,
     75   F4  =  4,
     76   F5  =  5,
     77   F6  =  6,
     78   F7  =  7,
     79   F8  =  8,
     80   F9  =  9,
     81   F10 = 10,
     82   F11 = 11,
     83   F12 = 12,
     84   F13 = 13,
     85   F14 = 14,
     86   F15 = 15,
     87   F16 = 16,
     88   F17 = 17,
     89   F18 = 18,
     90   F19 = 19,
     91   F20 = 20,
     92   F21 = 21,
     93   F22 = 22,
     94   F23 = 23,
     95   F24 = 24,
     96   F25 = 25,
     97   F26 = 26,
     98   F27 = 27,
     99   F28 = 28,
    100   F29 = 29,
    101   F30 = 30,
    102   F31 = 31,
    103   FTMP = F6,  // scratch register
    104   kNumberOfFRegisters = 32,
    105   kNoFRegister = -1,
    106 };
    107 std::ostream& operator<<(std::ostream& os, const FRegister& rhs);
    108 
    109 // Values for vector registers.
    110 enum VectorRegister {
    111   W0  =  0,
    112   W1  =  1,
    113   W2  =  2,
    114   W3  =  3,
    115   W4  =  4,
    116   W5  =  5,
    117   W6  =  6,
    118   W7  =  7,
    119   W8  =  8,
    120   W9  =  9,
    121   W10 = 10,
    122   W11 = 11,
    123   W12 = 12,
    124   W13 = 13,
    125   W14 = 14,
    126   W15 = 15,
    127   W16 = 16,
    128   W17 = 17,
    129   W18 = 18,
    130   W19 = 19,
    131   W20 = 20,
    132   W21 = 21,
    133   W22 = 22,
    134   W23 = 23,
    135   W24 = 24,
    136   W25 = 25,
    137   W26 = 26,
    138   W27 = 27,
    139   W28 = 28,
    140   W29 = 29,
    141   W30 = 30,
    142   W31 = 31,
    143   kNumberOfVectorRegisters = 32,
    144   kNoVectorRegister = -1,
    145 };
    146 std::ostream& operator<<(std::ostream& os, const VectorRegister& rhs);
    147 
    148 }  // namespace mips
    149 }  // namespace art
    150 
    151 #endif  // ART_RUNTIME_ARCH_MIPS_REGISTERS_MIPS_H_
    152