op_class.hh revision 2665
1/* 2 * Copyright (c) 2003-2005 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: Steve Reinhardt 29 * Nathan Binkert 30 */ 31 32#ifndef __CPU__OP_CLASS_HH__ 33#define __CPU__OP_CLASS_HH__ 34 35/** 36 * @file 37 * Definition of operation classes. 38 */ 39 40/** 41 * Instruction operation classes. These classes are used for 42 * assigning instructions to functional units. 43 */ 44enum OpClass { 45 No_OpClass = 0, ///< Instruction does not use a functional unit 46 IntAluOp, ///< Integer ALU operaton (add/sub/logical) 47 IntMultOp, ///< Integer multiply 48 IntDivOp, ///< Integer divide 49 FloatAddOp, ///< Floating point add/subtract 50 FloatCmpOp, ///< Floating point comparison 51 FloatCvtOp, ///< Floating point<->integer conversion 52 FloatMultOp, ///< Floating point multiply 53 FloatDivOp, ///< Floating point divide 54 FloatSqrtOp, ///< Floating point square root 55 MemReadOp, ///< Memory read port 56 MemWriteOp, ///< Memory write port 57 IprAccessOp, ///< Internal Processor Register read/write port 58 InstPrefetchOp, ///< Instruction prefetch port (on I-cache) 59 Num_OpClasses ///< Total number of operation classes 60}; 61 62/** 63 * Array mapping OpClass enum values to strings. Defined in op_class.cc. 64 */ 65extern const char *opClassStrings[]; 66 67#endif // __CPU__OP_CLASS_HH__ 68