1// -*- mode:c++ -*-
2
3
4// Copyright (c) 2006 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.
29//
30// Authors: Korey Sewell
31
32////////////////////////////////////////////////////////////////////
33//
34// Unimplemented instructions
35//
36
37output header {{
38 /**
39 * Static instruction class for unimplemented instructions that

--- 14 unchanged lines hidden (view full) ---

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.

--- 25 unchanged lines hidden (view full) ---

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