1// -*- mode:c++ -*-
2
3// Copyright (c) 2006 The Regents of The University of Michigan
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Korey Sewell
30
31////////////////////////////////////////////////////////////////////
32//
33// Unknown instructions
34//
35
36output header {{
37 /**
38 * Static instruction class for unknown (illegal) instructions.
39 * These cause simulator termination if they are executed in a
40 * non-speculative mode. This is a leaf class.
41 */
42 class Unknown : public MipsStaticInst
43 {
44 public:
45 /// Constructor
46 Unknown(MachInst _machInst)
47 : MipsStaticInst("unknown", _machInst, No_OpClass)
48 {
49 // don't call execute() (which panics) if we're on a
50 // speculative path
51 flags[IsNonSpeculative] = true;
52 }
53
| 1// -*- mode:c++ -*-
2
3// Copyright (c) 2006 The Regents of The University of Michigan
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Korey Sewell
30
31////////////////////////////////////////////////////////////////////
32//
33// Unknown instructions
34//
35
36output header {{
37 /**
38 * Static instruction class for unknown (illegal) instructions.
39 * These cause simulator termination if they are executed in a
40 * non-speculative mode. This is a leaf class.
41 */
42 class Unknown : public MipsStaticInst
43 {
44 public:
45 /// Constructor
46 Unknown(MachInst _machInst)
47 : MipsStaticInst("unknown", _machInst, No_OpClass)
48 {
49 // don't call execute() (which panics) if we're on a
50 // speculative path
51 flags[IsNonSpeculative] = true;
52 }
53
|
58 };
59}};
60
61output decoder {{
62 std::string
63 Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const
64 {
65 return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)",
66 "unknown", machInst, OPCODE, inst2string(machInst));
67 }
68}};
69
70output exec {{
71 Fault
72 Unknown::execute(ExecContext *xc, Trace::InstRecord *traceData) const
73 {
74 return std::make_shared<ReservedInstructionFault>();
75 }
76}};
77
78def format Unknown() {{
79 decode_block = 'return new Unknown(machInst);\n'
80}};
81
| 58 };
59}};
60
61output decoder {{
62 std::string
63 Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const
64 {
65 return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)",
66 "unknown", machInst, OPCODE, inst2string(machInst));
67 }
68}};
69
70output exec {{
71 Fault
72 Unknown::execute(ExecContext *xc, Trace::InstRecord *traceData) const
73 {
74 return std::make_shared<ReservedInstructionFault>();
75 }
76}};
77
78def format Unknown() {{
79 decode_block = 'return new Unknown(machInst);\n'
80}};
81
|