src/arch/power/insts/static_inst.cc

   1 /*
   2  * Copyright (c) 2009 The University of Edinburgh
   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: Timothy M. Jones
  29  */
  30
  31 #include "arch/power/insts/static_inst.hh"
  32
  33 using namespace PowerISA;
  34
  35 void
  36 PowerStaticInst::printReg(std::ostream &os, int reg) const
  37 {
  38     if (reg < FP_Base_DepTag) {
  39         ccprintf(os, "r%d", reg);
  40     } else if (reg < Ctrl_Base_DepTag) {
  41         ccprintf(os, "f%d", reg - FP_Base_DepTag);
  42     } else {
  43         switch (reg - Ctrl_Base_DepTag) {
  44         case 0: ccprintf(os, "cr"); break;
  45         case 1: ccprintf(os, "xer"); break;
  46         case 2: ccprintf(os, "lr"); break;
  47         case 3: ccprintf(os, "ctr"); break;
  48         default: ccprintf(os, "unknown_reg");
  49         }
  50     }
  51 }
  52
  53 std::string
  54 PowerStaticInst::generateDisassembly(Addr pc,
  55                                        const SymbolTable *symtab) const
  56 {
  57     std::stringstream ss;
  58
  59     ccprintf(ss, "%-10s ", mnemonic);
  60
  61     return ss.str();
  62 }