1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// -*- mode:c++ -*-
// Copyright (c) 2015 RISC-V Foundation
// Copyright (c) 2016 The University of Virginia
// 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: Maxwell Walter
// Alec Roelke
// Declarations for execute() methods.
def template BasicExecDeclare {{
Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const;
}};
// Basic instruction class declaration template.
def template BasicDeclare {{
//
// Static instruction class for "%(mnemonic)s".
//
class %(class_name)s : public %(base_class)s
{
public:
/// Constructor.
%(class_name)s(MachInst machInst);
%(BasicExecDeclare)s
using %(base_class)s::generateDisassembly;
};
}};
// Basic instruction class constructor template.
def template BasicConstructor {{
%(class_name)s::%(class_name)s(MachInst machInst)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
{
%(constructor)s;
}
}};
// Basic instruction class execute method template.
def template BasicExecute {{
Fault
%(class_name)s::execute(CPU_EXEC_CONTEXT *xc,
Trace::InstRecord *traceData) const
{
Fault fault = NoFault;
%(op_decl)s;
%(op_rd)s;
if (fault == NoFault) {
%(code)s;
if (fault == NoFault) {
%(op_wb)s;
}
}
return fault;
}
}};
// Basic decode template.
def template BasicDecode {{
return new %(class_name)s(machInst);
}};
// Basic decode template, passing mnemonic in as string arg to constructor.
def template BasicDecodeWithMnemonic {{
return new %(class_name)s("%(mnemonic)s", machInst);
}};
// The most basic instruction format...
def format BasicOp(code, *flags) {{
iop = InstObjParams(name, Name, 'RiscvStaticInst', code, flags)
header_output = BasicDeclare.subst(iop)
decoder_output = BasicConstructor.subst(iop)
decode_block = BasicDecode.subst(iop)
exec_output = BasicExecute.subst(iop)
}};
|
