xref: /gem5/src/arch/sparc/isa/formats/trap.isa

// Copyright (c) 2006-2007 The Regents of The University of Michigan
// 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: Gabe Black
//          Steve Reinhardt

////////////////////////////////////////////////////////////////////
//
// Trap instructions
//

def template TrapExecute {{
        Fault
        %(class_name)s::execute(ExecContext *xc,
                Trace::InstRecord *traceData) const
        {
            Fault fault = NoFault;
            %(op_decl)s;
            %(op_rd)s;
            %(code)s
            return fault;
        }
}};

def template FpUnimplExecute {{
        Fault
        %(class_name)s::execute(ExecContext *xc,
                Trace::InstRecord *traceData) const
        {
            Fault fault = NoFault;
            %(op_decl)s;
            %(op_rd)s;
            %(code)s
            %(op_wb)s;
            return fault;
        }
}};

def format Trap(code, *opt_flags) {{
        iop = InstObjParams(name, Name, 'Trap', code, opt_flags)
        header_output = BasicDeclare.subst(iop)
        decoder_output = BasicConstructor.subst(iop)
        decode_block = BasicDecode.subst(iop)
        exec_output = TrapExecute.subst(iop)
}};

def format FpUnimpl(*flags) {{
        fpunimpl_code = '''
            Fsr = insertBits(Fsr, 16, 14, 3);
            fault = std::make_shared<FpExceptionOther>();
            '''
        iop = InstObjParams(name, Name, 'FpUnimpl', fpunimpl_code, flags)
        header_output = BasicDeclare.subst(iop)
        decoder_output = BasicConstructor.subst(iop)
        decode_block = BasicDecode.subst(iop)
        exec_output = FpUnimplExecute.subst(iop)
}};