specop.isa revision 4696 
1// Copyright (c) 2007 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// Redistribution and use of this software in source and binary forms,
5// with or without modification, are permitted provided that the
6// following conditions are met:
7//
8// The software must be used only for Non-Commercial Use which means any
9// use which is NOT directed to receiving any direct monetary
10// compensation for, or commercial advantage from such use.  Illustrative
11// examples of non-commercial use are academic research, personal study,
12// teaching, education and corporate research & development.
13// Illustrative examples of commercial use are distributing products for
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16//
17// If you wish to use this software or functionality therein that may be
18// covered by patents for commercial use, please contact:
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20//     Office of Strategy and Technology
21//     Hewlett-Packard Company
22//     1501 Page Mill Road
23//     Palo Alto, California  94304
24//
25// Redistributions of source code must retain the above copyright notice,
26// this list of conditions and the following disclaimer.  Redistributions
27// in binary form must reproduce the above copyright notice, this list of
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32// this software without specific prior written permission.  No right of
33// sublicense is granted herewith.  Derivatives of the software and
34// output created using the software may be prepared, but only for
35// Non-Commercial Uses.  Derivatives of the software may be shared with
36// others provided: (i) the others agree to abide by the list of
37// conditions herein which includes the Non-Commercial Use restrictions;
38// and (ii) such Derivatives of the software include the above copyright
39// notice to acknowledge the contribution from this software where
40// applicable, this list of conditions and the disclaimer below.
41//
42// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53//
54// Authors: Gabe Black
55
56//////////////////////////////////////////////////////////////////////////
57//
58// Fault Microop
59//
60//////////////////////////////////////////////////////////////////////////
61
62output header {{
63    class MicroFault : public X86ISA::X86MicroopBase
64    {
65      protected:
66        Fault fault;
67        void buildMe();
68
69      public:
70        MicroFault(ExtMachInst _machInst, const char * instMnem,
71                bool isMicro, bool isDelayed, bool isFirst, bool isLast,
72                Fault _fault);
73
74        MicroFault(ExtMachInst _machInst, const char * instMnem,
75                Fault _fault);
76
77        %(BasicExecDeclare)s
78
79        std::string generateDisassembly(Addr pc,
80                const SymbolTable *symtab) const;
81    };
82}};
83
84output decoder {{
85        Fault MicroFault::execute(%(CPU_exec_context)s *xc,
86                Trace::InstRecord *traceData) const
87        {
88            //Return the fault we were constructed with
89            return fault;
90        }
91}};
92
93output decoder {{
94    inline MicroFault::MicroFault(
95            ExtMachInst machInst, const char * instMnem, Fault _fault) :
96        X86MicroopBase(machInst, "fault", instMnem,
97                false, false, false, false, No_OpClass), fault(_fault)
98    {
99    }
100
101    inline MicroFault::MicroFault(
102            ExtMachInst machInst, const char * instMnem,
103            bool isMicro, bool isDelayed, bool isFirst, bool isLast,
104            Fault _fault) :
105        X86MicroopBase(machInst, "fault", instMnem,
106                isMicro, isDelayed, isFirst, isLast, No_OpClass),
107                fault(_fault)
108    {
109    }
110}};
111
112output decoder {{
113    std::string MicroFault::generateDisassembly(Addr pc,
114            const SymbolTable *symtab) const
115    {
116        std::stringstream response;
117
118        printMnemonic(response, instMnem, mnemonic);
119        if(fault)
120            response << fault->name();
121        else
122            response << "No Fault";
123
124        return response.str();
125    }
126}};
127
128let {{
129    class Fault(X86Microop):
130        def __init__(self, fault):
131            self.fault = fault
132
133        def getAllocator(self, *microFlags):
134            allocator = '''new MicroFault(machInst, mnemonic
135                    %(flags)s, %(fault)s)''' % {
136                "flags" : self.microFlagsText(microFlags),
137                "fault" : self.fault}
138            return allocator
139    microopClasses["fault"] = Fault
140}};
141