unknown.isa (12236:126ac9da6050) unknown.isa (12321:8cdccf77eb3c)
1// -*- mode:c++ -*-
2
3// Copyright (c) 2015 RISC-V Foundation
4// Copyright (c) 2016 The University of Virginia
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

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29//
30// Authors: Maxwell Walter
31// Alec Roelke
32
33////////////////////////////////////////////////////////////////////
34//
35// Unknown instructions
36//
1// -*- mode:c++ -*-
2
3// Copyright (c) 2015 RISC-V Foundation
4// Copyright (c) 2016 The University of Virginia
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

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

29//
30// Authors: Maxwell Walter
31// Alec Roelke
32
33////////////////////////////////////////////////////////////////////
34//
35// Unknown instructions
36//
37
38output header {{
39 /**
40 * Static instruction class for unknown (illegal) instructions.
41 * These cause simulator termination if they are executed in a
42 * non-speculative mode. This is a leaf class.
43 */
44 class Unknown : public RiscvStaticInst
45 {
46 public:
47 /// Constructor
48 Unknown(MachInst _machInst)
49 : RiscvStaticInst("unknown", _machInst, No_OpClass)
50 {
51 flags[IsNonSpeculative] = true;
52 }
53
54 Fault execute(ExecContext *, Trace::InstRecord *) const;
55
56 std::string
57 generateDisassembly(Addr pc, const SymbolTable *symtab) const;
58 };
59}};
60
61output decoder {{
62 std::string
63 Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const
64 {
65 return csprintf("unknown opcode 0x%02x", OPCODE);
66 }
67}};
68
69output exec {{
70 Fault
71 Unknown::execute(ExecContext *xc, Trace::InstRecord *traceData) const
72 {
73 Fault fault = std::make_shared<UnknownInstFault>();
74 return fault;
75 }
76}};
77
78def format Unknown() {{
79 decode_block = 'return new Unknown(machInst);\n'
80}};
37def format Unknown() {{
38 decode_block = 'return new Unknown(machInst);\n'
39}};