src/arch/mips/regfile/int_regfile.hh

   1 /*
   2  * Copyright (c) 2006 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Korey Sewell
  29  */
  30
  31 #ifndef __ARCH_MIPS_REGFILE_INT_REGFILE_HH__
  32 #define __ARCH_MIPS_REGFILE_INT_REGFILE_HH__
  33
  34 #include "arch/mips/types.hh"
  35 #include "arch/mips/isa_traits.hh"
  36 #include "base/misc.hh"
  37 #include "base/trace.hh"
  38 #include "sim/faults.hh"
  39
  40 class Checkpoint;
  41
  42 namespace MipsISA
  43 {
  44     static inline std::string getIntRegName(RegIndex)
  45     {
  46         return "";
  47     }
  48
  49     enum MiscIntRegNums {
  50        LO = NumIntArchRegs*NumShadowRegSets,
  51        HI,
  52        DSPACX0,
  53        DSPLo1,
  54        DSPHi1,
  55        DSPACX1,
  56        DSPLo2,
  57        DSPHi2,
  58        DSPACX2,
  59        DSPLo3,
  60        DSPHi3,
  61        DSPACX3,
  62        DSPControl,
  63        DSPLo0 = LO,
  64        DSPHi0 = HI
  65     };
  66
  67     class IntRegFile
  68     {
  69       protected:
  70         IntReg regs[NumIntRegs];
  71         int currShadowSet;
  72       public:
  73         void clear();
  74         void setShadowSet(int css);
  75         IntReg readReg(int intReg);
  76         Fault setReg(int intReg, const IntReg &val);
  77
  78         void serialize(std::ostream &os);
  79         void unserialize(Checkpoint *cp, const std::string &section);
  80
  81     };
  82
  83 } // namespace MipsISA
  84
  85 #endif