src/arch/power/insts/static_inst.hh

   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
  29 #ifndef __ARCH_POWER_INSTS_STATICINST_HH__
  30 #define __ARCH_POWER_INSTS_STATICINST_HH__
  31
  32 #include "base/trace.hh"
  33 #include "cpu/static_inst.hh"
  34
  35 namespace PowerISA
  36 {
  37
  38 class PowerStaticInst : public StaticInst
  39 {
  40   protected:
  41
  42     // Constructor
  43     PowerStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
  44         : StaticInst(mnem, _machInst, __opClass)
  45     {
  46     }
  47
  48     // Insert a condition value into a CR (condition register) field
  49     inline uint32_t
  50     insertCRField(uint32_t cr, uint32_t bf, uint32_t value) const
  51     {
  52         uint32_t bits = value << ((7 - bf) * 4);
  53         uint32_t mask = ~(0xf << ((7 - bf) * 4));
  54         return (cr & mask) | bits;
  55     }
  56
  57     /// Print a register name for disassembly given the unique
  58     /// dependence tag number (FP or int).
  59     void
  60     printReg(std::ostream &os, RegId reg) const;
  61
  62     std::string generateDisassembly(
  63             Addr pc, const Loader::SymbolTable *symtab) const override;
  64
  65     void
  66     advancePC(PowerISA::PCState &pcState) const override
  67     {
  68         pcState.advance();
  69     }
  70
  71     size_t
  72     asBytes(void *buf, size_t max_size) override
  73     {
  74         return simpleAsBytes(buf, max_size, machInst);
  75     }
  76 };
  77
  78 } // namespace PowerISA
  79
  80 #endif //__ARCH_POWER_INSTS_STATICINST_HH__