basic.isa (12234:78ece221f9f5) basic.isa (12236:126ac9da6050)
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
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// Declarations for execute() methods.
32def template BasicExecDeclare {{
33 Fault execute(ExecContext *, Trace::InstRecord *) const;
34}};
35
36// Basic instruction class declaration template.
37def template BasicDeclare {{
38 /**
39 * Static instruction class for "%(mnemonic)s".
40 */
41 class %(class_name)s : public %(base_class)s
42 {
43 public:
44 /// Constructor.
45 %(class_name)s(ExtMachInst machInst);
31// Basic instruction class declaration template.
32def template BasicDeclare {{
33 /**
34 * Static instruction class for "%(mnemonic)s".
35 */
36 class %(class_name)s : public %(base_class)s
37 {
38 public:
39 /// Constructor.
40 %(class_name)s(ExtMachInst machInst);
46 %(BasicExecDeclare)s
41 Fault execute(ExecContext *, Trace::InstRecord *) const;
47 };
48}};
49
50// Basic instruction class constructor template.
51def template BasicConstructor {{
52 %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
53 {
54 %(constructor)s;
55 }
56}};
57
58
59// Basic instruction class execute method template.
60def template BasicExecute {{
61 Fault %(class_name)s::execute(
62 ExecContext *xc, Trace::InstRecord *traceData) const
63 {
64 Fault fault = NoFault;
65
66 %(op_decl)s;
67 %(op_rd)s;
68 %(code)s;
69
70 if (fault == NoFault)
71 {
72 %(op_wb)s;
73 }
74
75 return fault;
76 }
77}};
78
79// Basic decode template.
80def template BasicDecode {{
81 return new %(class_name)s(machInst);
82}};
83
84// Basic decode template, passing mnemonic in as string arg to constructor.
85def template BasicDecodeWithMnemonic {{
86 return new %(class_name)s("%(mnemonic)s", machInst);
87}};
88
42 };
43}};
44
45// Basic instruction class constructor template.
46def template BasicConstructor {{
47 %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
48 {
49 %(constructor)s;
50 }
51}};
52
53
54// Basic instruction class execute method template.
55def template BasicExecute {{
56 Fault %(class_name)s::execute(
57 ExecContext *xc, Trace::InstRecord *traceData) const
58 {
59 Fault fault = NoFault;
60
61 %(op_decl)s;
62 %(op_rd)s;
63 %(code)s;
64
65 if (fault == NoFault)
66 {
67 %(op_wb)s;
68 }
69
70 return fault;
71 }
72}};
73
74// Basic decode template.
75def template BasicDecode {{
76 return new %(class_name)s(machInst);
77}};
78
79// Basic decode template, passing mnemonic in as string arg to constructor.
80def template BasicDecodeWithMnemonic {{
81 return new %(class_name)s("%(mnemonic)s", machInst);
82}};
83
89// Definitions of execute methods that panic.
90def template BasicExecPanic {{
91Fault execute(ExecContext *, Trace::InstRecord *) const
92{
93 panic("Execute method called when it shouldn't!");
94}
95}};
96
97// The most basic instruction format...
98def format BasicOp(code, *flags) {{
99 iop = InstObjParams(name, Name, 'PowerStaticInst', code, flags)
100 header_output = BasicDeclare.subst(iop)
101 decoder_output = BasicConstructor.subst(iop)
102 decode_block = BasicDecode.subst(iop)
103 exec_output = BasicExecute.subst(iop)
104}};
84// The most basic instruction format...
85def format BasicOp(code, *flags) {{
86 iop = InstObjParams(name, Name, 'PowerStaticInst', code, flags)
87 header_output = BasicDeclare.subst(iop)
88 decoder_output = BasicConstructor.subst(iop)
89 decode_block = BasicDecode.subst(iop)
90 exec_output = BasicExecute.subst(iop)
91}};