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.
| 4// Copyright (c) 2003-2005 The Regents of The University of Michigan
5// All rights reserved.
6//
7// Redistribution and use in source and binary forms, with or without
8// modification, are permitted provided that the following conditions are
9// met: redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer;
11// redistributions in binary form must reproduce the above copyright
12// notice, this list of conditions and the following disclaimer in the
13// documentation and/or other materials provided with the distribution;
14// neither the name of the copyright holders nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
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 {
99 return csprintf("%-10s (unimplemented)", mnemonic);
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) {
119 warn("\tinstruction '%s' unimplemented\n", mnemonic);
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
| 37output header {{
38 /**
39 * Static instruction class for unimplemented instructions that
40 * cause simulator termination. Note that these are recognized
41 * (legal) instructions that the simulator does not support; the
42 * 'Unknown' class is used for unrecognized/illegal instructions.
43 * This is a leaf class.
44 */
45 class FailUnimplemented : public MipsStaticInst
46 {
47 public:
48 /// Constructor
49 FailUnimplemented(const char *_mnemonic, MachInst _machInst)
50 : MipsStaticInst(_mnemonic, _machInst, No_OpClass)
51 {
52 // don't call execute() (which panics) if we're on a
53 // speculative path
54 flags[IsNonSpeculative] = true;
55 }
56
57 %(BasicExecDeclare)s
58
59 std::string
60 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
61 };
62
63 /**
64 * Base class for unimplemented instructions that cause a warning
65 * to be printed (but do not terminate simulation). This
66 * implementation is a little screwy in that it will print a
67 * warning for each instance of a particular unimplemented machine
68 * instruction, not just for each unimplemented opcode. Should
69 * probably make the 'warned' flag a static member of the derived
70 * class.
71 */
72 class WarnUnimplemented : public MipsStaticInst
73 {
74 private:
75 /// Have we warned on this instruction yet?
76 mutable bool warned;
77
78 public:
79 /// Constructor
80 WarnUnimplemented(const char *_mnemonic, MachInst _machInst)
81 : MipsStaticInst(_mnemonic, _machInst, No_OpClass), warned(false)
82 {
83 // don't call execute() (which panics) if we're on a
84 // speculative path
85 flags[IsNonSpeculative] = true;
86 }
87
88 %(BasicExecDeclare)s
89
90 std::string
91 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
92 };
93}};
94
95output decoder {{
96 std::string
97 FailUnimplemented::generateDisassembly(Addr pc,
98 const SymbolTable *symtab) const
99 {
100 return csprintf("%-10s (unimplemented)", mnemonic);
101 }
102
103 std::string
104 WarnUnimplemented::generateDisassembly(Addr pc,
105 const SymbolTable *symtab) const
106 {
107 return csprintf("%-10s (unimplemented)", mnemonic);
108 }
109}};
110
111output exec {{
112 Fault
113 FailUnimplemented::execute(%(CPU_exec_context)s *xc,
114 Trace::InstRecord *traceData) const
115 {
116 panic("attempt to execute unimplemented instruction '%s' "
117 "(inst 0x%08x, opcode 0x%x, binary:%s)", mnemonic, machInst, OPCODE,
118 inst2string(machInst));
119 return new UnimplementedOpcodeFault;
120 }
121
122 Fault
123 WarnUnimplemented::execute(%(CPU_exec_context)s *xc,
124 Trace::InstRecord *traceData) const
125 {
126 if (!warned) {
127 warn("\tinstruction '%s' unimplemented\n", mnemonic);
128 warned = true;
129 }
130
131 return NoFault;
132 }
133}};
134
135
136def format FailUnimpl() {{
137 iop = InstObjParams(name, 'FailUnimplemented')
138 decode_block = BasicDecodeWithMnemonic.subst(iop)
139}};
140
141def format WarnUnimpl() {{
142 iop = InstObjParams(name, 'WarnUnimplemented')
143 decode_block = BasicDecodeWithMnemonic.subst(iop)
144}};
145
|