src/arch/x86/regs/int.hh

   1 /*
   2  * Copyright (c) 2007 The Hewlett-Packard Development Company
   3  * All rights reserved.
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions are
  16  * met: redistributions of source code must retain the above copyright
  17  * notice, this list of conditions and the following disclaimer;
  18  * redistributions in binary form must reproduce the above copyright
  19  * notice, this list of conditions and the following disclaimer in the
  20  * documentation and/or other materials provided with the distribution;
  21  * neither the name of the copyright holders nor the names of its
  22  * contributors may be used to endorse or promote products derived from
  23  * this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  29  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  31  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  35  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  * Authors: Gabe Black
  38  */
  39
  40 #ifndef __ARCH_X86_INTREGS_HH__
  41 #define __ARCH_X86_INTREGS_HH__
  42
  43 #include "arch/x86/x86_traits.hh"
  44 #include "base/bitunion.hh"
  45 #include "base/misc.hh"
  46 #include "sim/core.hh"
  47
  48 namespace X86ISA
  49 {
  50     BitUnion64(X86IntReg)
  51         Bitfield<63,0> R;
  52         SignedBitfield<63,0> SR;
  53         Bitfield<31,0> E;
  54         SignedBitfield<31,0> SE;
  55         Bitfield<15,0> X;
  56         SignedBitfield<15,0> SX;
  57         Bitfield<15,8> H;
  58         SignedBitfield<15,8> SH;
  59         Bitfield<7, 0> L;
  60         SignedBitfield<7, 0> SL;
  61     EndBitUnion(X86IntReg)
  62
  63     enum IntRegIndex
  64     {
  65         INTREG_RAX,
  66         INTREG_EAX = INTREG_RAX,
  67         INTREG_AX = INTREG_RAX,
  68         INTREG_AL = INTREG_RAX,
  69
  70         INTREG_RCX,
  71         INTREG_ECX = INTREG_RCX,
  72         INTREG_CX = INTREG_RCX,
  73         INTREG_CL = INTREG_RCX,
  74
  75         INTREG_RDX,
  76         INTREG_EDX = INTREG_RDX,
  77         INTREG_DX = INTREG_RDX,
  78         INTREG_DL = INTREG_RDX,
  79
  80         INTREG_RBX,
  81         INTREG_EBX = INTREG_RBX,
  82         INTREG_BX = INTREG_RBX,
  83         INTREG_BL = INTREG_RBX,
  84
  85         INTREG_RSP,
  86         INTREG_ESP = INTREG_RSP,
  87         INTREG_SP = INTREG_RSP,
  88         INTREG_SPL = INTREG_RSP,
  89         INTREG_AH = INTREG_RSP,
  90
  91         INTREG_RBP,
  92         INTREG_EBP = INTREG_RBP,
  93         INTREG_BP = INTREG_RBP,
  94         INTREG_BPL = INTREG_RBP,
  95         INTREG_CH = INTREG_RBP,
  96
  97         INTREG_RSI,
  98         INTREG_ESI = INTREG_RSI,
  99         INTREG_SI = INTREG_RSI,
 100         INTREG_SIL = INTREG_RSI,
 101         INTREG_DH = INTREG_RSI,
 102
 103         INTREG_RDI,
 104         INTREG_EDI = INTREG_RDI,
 105         INTREG_DI = INTREG_RDI,
 106         INTREG_DIL = INTREG_RDI,
 107         INTREG_BH = INTREG_RDI,
 108
 109         INTREG_R8,
 110         INTREG_R8D = INTREG_R8,
 111         INTREG_R8W = INTREG_R8,
 112         INTREG_R8B = INTREG_R8,
 113
 114         INTREG_R9,
 115         INTREG_R9D = INTREG_R9,
 116         INTREG_R9W = INTREG_R9,
 117         INTREG_R9B = INTREG_R9,
 118
 119         INTREG_R10,
 120         INTREG_R10D = INTREG_R10,
 121         INTREG_R10W = INTREG_R10,
 122         INTREG_R10B = INTREG_R10,
 123
 124         INTREG_R11,
 125         INTREG_R11D = INTREG_R11,
 126         INTREG_R11W = INTREG_R11,
 127         INTREG_R11B = INTREG_R11,
 128
 129         INTREG_R12,
 130         INTREG_R12D = INTREG_R12,
 131         INTREG_R12W = INTREG_R12,
 132         INTREG_R12B = INTREG_R12,
 133
 134         INTREG_R13,
 135         INTREG_R13D = INTREG_R13,
 136         INTREG_R13W = INTREG_R13,
 137         INTREG_R13B = INTREG_R13,
 138
 139         INTREG_R14,
 140         INTREG_R14D = INTREG_R14,
 141         INTREG_R14W = INTREG_R14,
 142         INTREG_R14B = INTREG_R14,
 143
 144         INTREG_R15,
 145         INTREG_R15D = INTREG_R15,
 146         INTREG_R15W = INTREG_R15,
 147         INTREG_R15B = INTREG_R15,
 148
 149         NUM_INTREGS
 150     };
 151
 152     // This needs to be large enough to miss all the other bits of an index.
 153     static const IntRegIndex IntFoldBit = (IntRegIndex)(1 << 6);
 154
 155     inline static IntRegIndex
 156     INTREG_MICRO(int index)
 157     {
 158         return (IntRegIndex)(NUM_INTREGS + index);
 159     }
 160
 161     inline static IntRegIndex
 162     INTREG_IMPLICIT(int index)
 163     {
 164         return (IntRegIndex)(NUM_INTREGS + NumMicroIntRegs + index);
 165     }
 166
 167     inline static IntRegIndex
 168     INTREG_FOLDED(int index, int foldBit)
 169     {
 170         if ((index & 0x1C) == 4 && foldBit)
 171             index = (index - 4) | foldBit;
 172         return (IntRegIndex)index;
 173     }
 174 }
 175
 176 #endif // __ARCH_X86_INTREGS_HH__