op_class.hh revision 2410
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 29#ifndef __CPU__OP_CLASS_HH__ 30#define __CPU__OP_CLASS_HH__ 31 32/** 33 * @file 34 * Definition of operation classes. 35 */ 36 37/** 38 * Instruction operation classes. These classes are used for 39 * assigning instructions to functional units. 40 */ 41enum OpClass { 42 No_OpClass = 0, ///< Instruction does not use a functional unit 43 IntAluOp, ///< Integer ALU operaton (add/sub/logical) 44 IntMultOp, ///< Integer multiply 45 IntDivOp, ///< Integer divide 46 FloatAddOp, ///< Floating point add/subtract 47 FloatCmpOp, ///< Floating point comparison 48 FloatCvtOp, ///< Floating point<->integer conversion 49 FloatMultOp, ///< Floating point multiply 50 FloatDivOp, ///< Floating point divide 51 FloatSqrtOp, ///< Floating point square root 52 MemReadOp, ///< Memory read port 53 MemWriteOp, ///< Memory write port 54 IprAccessOp, ///< Internal Processor Register read/write port 55 InstPrefetchOp, ///< Instruction prefetch port (on I-cache) 56 Num_OpClasses ///< Total number of operation classes 57}; 58 59/** 60 * Array mapping OpClass enum values to strings. Defined in op_class.cc. 61 */ 62extern const char *opClassStrings[]; 63 64#endif // __CPU__OP_CLASS_HH__ 65