misc.isa revision 12234:78ece221f9f5 
1// -*- mode:c++ -*-
2
3// Copyright (c) 2009 The University of Edinburgh
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer;
10// redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution;
13// neither the name of the copyright holders nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Authors: Timothy M. Jones
30
31////////////////////////////////////////////////////////////////////
32//
33// Misc instructions
34//
35
36def template MiscOpExecute {{
37    Fault %(class_name)s::execute(
38        ExecContext *xc, Trace::InstRecord *traceData) const
39    {
40        Fault fault = NoFault;
41        %(op_decl)s;
42        %(op_rd)s;
43
44        %(code)s;
45        if (fault == NoFault)
46        {
47            %(op_wb)s;
48        }
49
50        return fault;
51    }
52}};
53
54def format MiscOp(code, opt_flags = []) {{
55    iop = InstObjParams(name, Name, 'IntOp',
56                        {"code": code},
57                        opt_flags)
58    header_output = BasicDeclare.subst(iop)
59    decoder_output = BasicConstructor.subst(iop)
60    decode_block = BasicDecode.subst(iop)
61    exec_output = MiscOpExecute.subst(iop)
62}};
63