| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2007-2008 The Florida State University |
| // Copyright (c) 2009 The University of Edinburgh |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer; |
| // redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution; |
| // neither the name of the copyright holders nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Authors: Stephen Hines |
| // Timothy M. Jones |
| |
| //////////////////////////////////////////////////////////////////// |
| // |
| // Unknown instructions |
| // |
| |
| output header {{ |
| /** |
| * Static instruction class for unknown (illegal) instructions. |
| * These cause simulator termination if they are executed in a |
| * non-speculative mode. This is a leaf class. |
| */ |
| class Unknown : public PowerStaticInst |
| { |
| public: |
| /// Constructor |
| Unknown(ExtMachInst _machInst) |
| : PowerStaticInst("unknown", _machInst, No_OpClass) |
| { |
| // don't call execute() (which panics) if we're on a |
| // speculative path |
| flags[IsNonSpeculative] = true; |
| } |
| |
| Fault execute(ExecContext *, Trace::InstRecord *) const; |
| |
| std::string |
| generateDisassembly(Addr pc, const SymbolTable *symtab) const; |
| }; |
| }}; |
| |
| output decoder {{ |
| std::string |
| Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const |
| { |
| return csprintf("%-10s (inst 0x%x, opcode 0x%x, binary:%s)", |
| "unknown", machInst, OPCODE, inst2string(machInst)); |
| } |
| }}; |
| |
| output exec {{ |
| Fault |
| Unknown::execute(ExecContext *xc, Trace::InstRecord *traceData) const |
| { |
| panic("attempt to execute unknown instruction at %#x" |
| "(inst 0x%08x, opcode 0x%x, binary: %s)", |
| xc->pcState().pc(), machInst, OPCODE, inst2string(machInst)); |
| return std::make_shared<UnimplementedOpcodeFault>(); |
| } |
| }}; |
| |
| def format Unknown() {{ |
| decode_block = 'return new Unknown(machInst);\n' |
| }}; |
| |