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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Steve Reinhardt
* Nathan Binkert
*/
#ifndef __CPU__OP_CLASS_HH__
#define __CPU__OP_CLASS_HH__
/**
* @file
* Definition of operation classes.
*/
/**
* Instruction operation classes. These classes are used for
* assigning instructions to functional units.
*/
enum OpClass {
No_OpClass = 0, ///< Instruction does not use a functional unit
IntAluOp, ///< Integer ALU operaton (add/sub/logical)
IntMultOp, ///< Integer multiply
IntDivOp, ///< Integer divide
FloatAddOp, ///< Floating point add/subtract
FloatCmpOp, ///< Floating point comparison
FloatCvtOp, ///< Floating point<->integer conversion
FloatMultOp, ///< Floating point multiply
FloatDivOp, ///< Floating point divide
FloatSqrtOp, ///< Floating point square root
MemReadOp, ///< Memory read port
MemWriteOp, ///< Memory write port
IprAccessOp, ///< Internal Processor Register read/write port
InstPrefetchOp, ///< Instruction prefetch port (on I-cache)
Num_OpClasses ///< Total number of operation classes
};
/**
* Array mapping OpClass enum values to strings. Defined in op_class.cc.
*/
extern const char *opClassStrings[Num_OpClasses];
#endif // __CPU__OP_CLASS_HH__
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