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// -*- mode:c++ -*-
// Copyright (c) 2007 MIPS Technologies, Inc.
// 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: Korey Sewell
// Jaidev Patwardhan
////////////////////////////////////////////////////////////////////
//
// Trap instructions
//
output header {{
/**
* Base class for integer operations.
*/
class Trap : public MipsStaticInst
{
protected:
/// Constructor
Trap(const char *mnem, MachInst _machInst, OpClass __opClass) : MipsStaticInst(mnem, _machInst, __opClass)
{
}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class TrapImm : public MipsStaticInst
{
protected:
int16_t imm;
/// Constructor
TrapImm(const char *mnem, MachInst _machInst, OpClass __opClass) :
MipsStaticInst(mnem, _machInst, __opClass),imm(INTIMM)
{
}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
}};
output decoder {{
std::string Trap::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return "Disassembly of trap instruction\n";
}
std::string TrapImm::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
return "Disassembly of trap instruction\n";
}
}};
def template TrapExecute {{
//Edit This Template When Traps Are Implemented
Fault %(class_name)s::execute(
ExecContext *xc, Trace::InstRecord *traceData) const
{
//Write the resulting state to the execution context
%(op_wb)s;
//Call into the trap handler with the appropriate fault
return No_Fault;
}
}};
def format Trap(code, *flags) {{
code ='bool cond;\n' + code
code += 'if (cond) {\n'
code += 'fault = std::make_shared<TrapFault>();\n};'
iop = InstObjParams(name, Name, 'MipsStaticInst', code, flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = BasicExecute.subst(iop)
}};
def format TrapImm(code, *flags) {{
code ='bool cond;\n' + code
code += 'if (cond) {\n'
code += 'fault = std::make_shared<TrapFault>();\n};'
iop = InstObjParams(name, Name, 'MipsStaticInst', code, flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = BasicExecute.subst(iop)
}};
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