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Diffstat (limited to 'cpu/op_class.hh')
| -rw-r--r-- | cpu/op_class.hh | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/cpu/op_class.hh b/cpu/op_class.hh new file mode 100644 index 000000000..cdb40a0fb --- /dev/null +++ b/cpu/op_class.hh @@ -0,0 +1,64 @@ +/* + * 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. + */ + +#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[]; + +#endif // __CPU__OP_CLASS_HH__ |