1// -*- mode:c++ -*-
2
3// Copyright (c) 2003-2005 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.
| 1// -*- mode:c++ -*-
2
3// Copyright (c) 2003-2005 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
| 28
|
31////////////////////////////////////////////////////////////////////
32//
33// Unimplemented instructions
34//
35
| |
36output header {{
37 /**
38 * Static instruction class for unimplemented instructions that
39 * cause simulator termination. Note that these are recognized
40 * (legal) instructions that the simulator does not support; the
41 * 'Unknown' class is used for unrecognized/illegal instructions.
42 * This is a leaf class.
43 */
44 class FailUnimplemented : public MipsStaticInst
45 {
46 public:
47 /// Constructor
48 FailUnimplemented(const char *_mnemonic, MachInst _machInst)
49 : MipsStaticInst(_mnemonic, _machInst, No_OpClass)
50 {
51 // don't call execute() (which panics) if we're on a
52 // speculative path
53 flags[IsNonSpeculative] = true;
54 }
55
56 %(BasicExecDeclare)s
57
58 std::string
59 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
60 };
61
62 /**
63 * Base class for unimplemented instructions that cause a warning
64 * to be printed (but do not terminate simulation). This
65 * implementation is a little screwy in that it will print a
66 * warning for each instance of a particular unimplemented machine
67 * instruction, not just for each unimplemented opcode. Should
68 * probably make the 'warned' flag a static member of the derived
69 * class.
70 */
71 class WarnUnimplemented : public MipsStaticInst
72 {
73 private:
74 /// Have we warned on this instruction yet?
75 mutable bool warned;
76
77 public:
78 /// Constructor
79 WarnUnimplemented(const char *_mnemonic, MachInst _machInst)
80 : MipsStaticInst(_mnemonic, _machInst, No_OpClass), warned(false)
81 {
82 // don't call execute() (which panics) if we're on a
83 // speculative path
84 flags[IsNonSpeculative] = true;
85 }
86
87 %(BasicExecDeclare)s
88
89 std::string
90 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
91 };
92}};
93
94output decoder {{
95 std::string
96 FailUnimplemented::generateDisassembly(Addr pc,
97 const SymbolTable *symtab) const
98 {
99 return csprintf("%-10s (unimplemented)", mnemonic);
100 }
101
102 std::string
103 WarnUnimplemented::generateDisassembly(Addr pc,
104 const SymbolTable *symtab) const
105 {
| 29output header {{
30 /**
31 * Static instruction class for unimplemented instructions that
32 * cause simulator termination. Note that these are recognized
33 * (legal) instructions that the simulator does not support; the
34 * 'Unknown' class is used for unrecognized/illegal instructions.
35 * This is a leaf class.
36 */
37 class FailUnimplemented : public MipsStaticInst
38 {
39 public:
40 /// Constructor
41 FailUnimplemented(const char *_mnemonic, MachInst _machInst)
42 : MipsStaticInst(_mnemonic, _machInst, No_OpClass)
43 {
44 // don't call execute() (which panics) if we're on a
45 // speculative path
46 flags[IsNonSpeculative] = true;
47 }
48
49 %(BasicExecDeclare)s
50
51 std::string
52 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
53 };
54
55 /**
56 * Base class for unimplemented instructions that cause a warning
57 * to be printed (but do not terminate simulation). This
58 * implementation is a little screwy in that it will print a
59 * warning for each instance of a particular unimplemented machine
60 * instruction, not just for each unimplemented opcode. Should
61 * probably make the 'warned' flag a static member of the derived
62 * class.
63 */
64 class WarnUnimplemented : public MipsStaticInst
65 {
66 private:
67 /// Have we warned on this instruction yet?
68 mutable bool warned;
69
70 public:
71 /// Constructor
72 WarnUnimplemented(const char *_mnemonic, MachInst _machInst)
73 : MipsStaticInst(_mnemonic, _machInst, No_OpClass), warned(false)
74 {
75 // don't call execute() (which panics) if we're on a
76 // speculative path
77 flags[IsNonSpeculative] = true;
78 }
79
80 %(BasicExecDeclare)s
81
82 std::string
83 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
84 };
85}};
86
87output decoder {{
88 std::string
89 FailUnimplemented::generateDisassembly(Addr pc,
90 const SymbolTable *symtab) const
91 {
92 return csprintf("%-10s (unimplemented)", mnemonic);
93 }
94
95 std::string
96 WarnUnimplemented::generateDisassembly(Addr pc,
97 const SymbolTable *symtab) const
98 {
|
106#ifdef SS_COMPATIBLE_DISASSEMBLY
107 return csprintf("%-10s", mnemonic);
108#else
| |
109 return csprintf("%-10s (unimplemented)", mnemonic);
| 99 return csprintf("%-10s (unimplemented)", mnemonic);
|
110#endif
| |
111 }
112}};
113
114output exec {{
115 Fault
116 FailUnimplemented::execute(%(CPU_exec_context)s *xc,
117 Trace::InstRecord *traceData) const
118 {
119 panic("attempt to execute unimplemented instruction '%s' "
120 "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE,
121 inst2string(machInst));
122 return new UnimplementedOpcodeFault;
123 }
124
125 Fault
126 WarnUnimplemented::execute(%(CPU_exec_context)s *xc,
127 Trace::InstRecord *traceData) const
128 {
129 if (!warned) {
| 100 }
101}};
102
103output exec {{
104 Fault
105 FailUnimplemented::execute(%(CPU_exec_context)s *xc,
106 Trace::InstRecord *traceData) const
107 {
108 panic("attempt to execute unimplemented instruction '%s' "
109 "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE,
110 inst2string(machInst));
111 return new UnimplementedOpcodeFault;
112 }
113
114 Fault
115 WarnUnimplemented::execute(%(CPU_exec_context)s *xc,
116 Trace::InstRecord *traceData) const
117 {
118 if (!warned) {
|
130 warn("instruction '%s' unimplemented\n", mnemonic);
| 119 warn("\tinstruction '%s' unimplemented\n", mnemonic);
|
131 warned = true;
132 }
133
134 return NoFault;
135 }
136}};
137
138
139def format FailUnimpl() {{
140 iop = InstObjParams(name, 'FailUnimplemented')
141 decode_block = BasicDecodeWithMnemonic.subst(iop)
142}};
143
144def format WarnUnimpl() {{
145 iop = InstObjParams(name, 'WarnUnimplemented')
146 decode_block = BasicDecodeWithMnemonic.subst(iop)
147}};
148
| 120 warned = true;
121 }
122
123 return NoFault;
124 }
125}};
126
127
128def format FailUnimpl() {{
129 iop = InstObjParams(name, 'FailUnimplemented')
130 decode_block = BasicDecodeWithMnemonic.subst(iop)
131}};
132
133def format WarnUnimpl() {{
134 iop = InstObjParams(name, 'WarnUnimplemented')
135 decode_block = BasicDecodeWithMnemonic.subst(iop)
136}};
137
|
149output header {{
150 /**
151 * Static instruction class for unknown (illegal) instructions.
152 * These cause simulator termination if they are executed in a
153 * non-speculative mode. This is a leaf class.
154 */
155 class Unknown : public MipsStaticInst
156 {
157 public:
158 /// Constructor
159 Unknown(MachInst _machInst)
160 : MipsStaticInst("unknown", _machInst, No_OpClass)
161 {
162 // don't call execute() (which panics) if we're on a
163 // speculative path
164 flags[IsNonSpeculative] = true;
165 }
166
167 %(BasicExecDeclare)s
168
169 std::string
170 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
171 };
172}};
173
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