1// Copyright (c) 2006-2007 The Regents of The University of Michigan
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met: redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer;
8// redistributions in binary form must reproduce the above copyright
9// notice, this list of conditions and the following disclaimer in the
10// documentation and/or other materials provided with the distribution;
11// neither the name of the copyright holders nor the names of its
12// contributors may be used to endorse or promote products derived from
13// this software without specific prior written permission.
14//
15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26//
27// Authors: Gabe Black
28//          Steve Reinhardt
29
30////////////////////////////////////////////////////////////////////
31//
32// Trap instructions
33//
34
35def template TrapExecute {{
36        Fault
37        %(class_name)s::execute(ExecContext *xc,
38                Trace::InstRecord *traceData) const
39        {
40            Fault fault = NoFault;
41            %(op_decl)s;
42            %(op_rd)s;
43            %(code)s
44            return fault;
45        }
46}};
47
48def template FpUnimplExecute {{
49        Fault
50        %(class_name)s::execute(ExecContext *xc,
51                Trace::InstRecord *traceData) const
52        {
53            Fault fault = NoFault;
54            %(op_decl)s;
55            %(op_rd)s;
56            %(code)s
57            %(op_wb)s;
58            return fault;
59        }
60}};
61
62def format Trap(code, *opt_flags) {{
63        iop = InstObjParams(name, Name, 'Trap', code, opt_flags)
64        header_output = BasicDeclare.subst(iop)
65        decoder_output = BasicConstructor.subst(iop)
66        decode_block = BasicDecode.subst(iop)
67        exec_output = TrapExecute.subst(iop)
68}};
69
70def format FpUnimpl(*flags) {{
71        fpunimpl_code = '''
72            Fsr = insertBits(Fsr, 16, 14, 3);
73            fault = std::make_shared<FpExceptionOther>();
74            '''
75        iop = InstObjParams(name, Name, 'FpUnimpl', fpunimpl_code, flags)
76        header_output = BasicDeclare.subst(iop)
77        decoder_output = BasicConstructor.subst(iop)
78        decode_block = BasicDecode.subst(iop)
79        exec_output = FpUnimplExecute.subst(iop)
80}};
81