src/arch/x86/intregfile.cc

   1 /*
   2  * Copyright (c) 2003-2007 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: Gabe Black
  29  */
  30
  31 /*
  32  * Copyright (c) 2007 The Hewlett-Packard Development Company
  33  * All rights reserved.
  34  *
  35  * Redistribution and use of this software in source and binary forms,
  36  * with or without modification, are permitted provided that the
  37  * following conditions are met:
  38  *
  39  * The software must be used only for Non-Commercial Use which means any
  40  * use which is NOT directed to receiving any direct monetary
  41  * compensation for, or commercial advantage from such use.  Illustrative
  42  * examples of non-commercial use are academic research, personal study,
  43  * teaching, education and corporate research & development.
  44  * Illustrative examples of commercial use are distributing products for
  45  * commercial advantage and providing services using the software for
  46  * commercial advantage.
  47  *
  48  * If you wish to use this software or functionality therein that may be
  49  * covered by patents for commercial use, please contact:
  50  *     Director of Intellectual Property Licensing
  51  *     Office of Strategy and Technology
  52  *     Hewlett-Packard Company
  53  *     1501 Page Mill Road
  54  *     Palo Alto, California  94304
  55  *
  56  * Redistributions of source code must retain the above copyright notice,
  57  * this list of conditions and the following disclaimer.  Redistributions
  58  * in binary form must reproduce the above copyright notice, this list of
  59  * conditions and the following disclaimer in the documentation and/or
  60  * other materials provided with the distribution.  Neither the name of
  61  * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
  62  * contributors may be used to endorse or promote products derived from
  63  * this software without specific prior written permission.  No right of
  64  * sublicense is granted herewith.  Derivatives of the software and
  65  * output created using the software may be prepared, but only for
  66  * Non-Commercial Uses.  Derivatives of the software may be shared with
  67  * others provided: (i) the others agree to abide by the list of
  68  * conditions herein which includes the Non-Commercial Use restrictions;
  69  * and (ii) such Derivatives of the software include the above copyright
  70  * notice to acknowledge the contribution from this software where
  71  * applicable, this list of conditions and the disclaimer below.
  72  *
  73  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  74  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  75  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  76  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  77  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  78  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  79  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  80  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  81  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  82  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  83  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  84  *
  85  * Authors: Gabe Black
  86  */
  87
  88 #include "arch/x86/intregfile.hh"
  89 #include "base/misc.hh"
  90 #include "base/trace.hh"
  91 #include "sim/serialize.hh"
  92
  93 #include <string.h>
  94
  95 using namespace X86ISA;
  96 using namespace std;
  97
  98 class Checkpoint;
  99
 100 string X86ISA::getIntRegName(RegIndex index)
 101 {
 102     //These might appear to be out of order, but they match
 103     //the encoding for the registers. Who knows why the indexes
 104     //are out of order
 105     static std::string intRegName[NumIntArchRegs] =
 106         {"rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
 107          "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"};
 108     return intRegName[index];
 109 }
 110
 111 int IntRegFile::flattenIndex(int reg)
 112 {
 113     return reg;
 114 }
 115
 116 void IntRegFile::clear()
 117 {
 118     memset(regs, 0, sizeof(IntReg) * NumIntRegs);
 119 }
 120
 121 IntReg IntRegFile::readReg(int intReg)
 122 {
 123     DPRINTF(X86, "Read int reg %d and got value %#x\n", intReg, regs[intReg]);
 124     return regs[intReg];
 125 }
 126
 127 void IntRegFile::setReg(int intReg, const IntReg &val)
 128 {
 129     DPRINTF(X86, "Setting int reg %d to value %#x\n", intReg, val);
 130     regs[intReg] = val;
 131 }
 132
 133 void IntRegFile::serialize(std::ostream &os)
 134 {
 135     SERIALIZE_ARRAY(regs, NumIntRegs);
 136 }
 137
 138 void IntRegFile::unserialize(Checkpoint *cp, const std::string &section)
 139 {
 140     UNSERIALIZE_ARRAY(regs, NumIntRegs);
 141 }