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: Ali Saidi
28// Gabe Black
29// Steve Reinhardt
30
| 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: Ali Saidi
28// Gabe Black
29// Steve Reinhardt
30
|
31// Declarations for execute() methods.
32def template BasicExecDeclare {{
33 Fault execute(ExecContext *, Trace::InstRecord *) const;
34}};
35
36def template DoFpOpDeclare {{
37 Fault doFpOp(ExecContext *, Trace::InstRecord *)
38 const M5_NO_INLINE;
39}};
40
41// Definitions of execute methods that panic.
42def template BasicExecPanic {{
43 Fault
44 execute(ExecContext *, Trace::InstRecord *) const
45 {
46 panic("Execute method called when it shouldn't!");
47 M5_DUMMY_RETURN
48 }
49}};
50
| |
51// Basic instruction class declaration template.
52def template BasicDeclare {{
53 /**
54 * Static instruction class for "%(mnemonic)s".
55 */
56 class %(class_name)s : public %(base_class)s
57 {
58 public:
59 // Constructor.
60 %(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);
|
61 %(BasicExecDeclare)s
| 41 Fault execute(ExecContext *, Trace::InstRecord *) const;
|
62 };
63}};
64
65// Basic instruction class declaration template.
66def template FpBasicDeclare {{
67 /**
68 * Static instruction class for "%(mnemonic)s".
69 */
70 class %(class_name)s : public %(base_class)s
71 {
72 public:
73 // Constructor.
74 %(class_name)s(ExtMachInst machInst);
| 42 };
43}};
44
45// Basic instruction class declaration template.
46def template FpBasicDeclare {{
47 /**
48 * Static instruction class for "%(mnemonic)s".
49 */
50 class %(class_name)s : public %(base_class)s
51 {
52 public:
53 // Constructor.
54 %(class_name)s(ExtMachInst machInst);
|
75 %(BasicExecDeclare)s
76 %(DoFpOpDeclare)s
| 55 Fault execute(ExecContext *, Trace::InstRecord *) const;
56 Fault doFpOp(ExecContext *,
57 Trace::InstRecord *) const M5_NO_INLINE;
|
77 };
78}};
79
80// Basic instruction class declaration template.
81def template BasicDeclareWithMnemonic {{
82 /**
83 * Static instruction class for "%(mnemonic)s".
84 */
85 class %(class_name)s : public %(base_class)s
86 {
87 public:
88 // Constructor.
89 %(class_name)s(const char * mnemonic, ExtMachInst machInst);
| 58 };
59}};
60
61// Basic instruction class declaration template.
62def template BasicDeclareWithMnemonic {{
63 /**
64 * Static instruction class for "%(mnemonic)s".
65 */
66 class %(class_name)s : public %(base_class)s
67 {
68 public:
69 // Constructor.
70 %(class_name)s(const char * mnemonic, ExtMachInst machInst);
|
90 %(BasicExecDeclare)s
| 71 Fault execute(ExecContext *, Trace::InstRecord *) const;
|
91 };
92}};
93
94// Basic instruction class constructor template.
95def template BasicConstructor {{
96 %(class_name)s::%(class_name)s(ExtMachInst machInst)
97 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
98 {
99 %(constructor)s;
100 }
101}};
102
103// Basic instruction class constructor template.
104def template BasicConstructorWithMnemonic {{
105 %(class_name)s::%(class_name)s(const char * mnemonic,
106 ExtMachInst machInst)
107 : %(base_class)s(mnemonic, machInst, %(op_class)s)
108 {
109 %(constructor)s;
110 }
111}};
112
113// Basic instruction class execute method template.
114def template BasicExecute {{
115 Fault
116 %(class_name)s::execute(ExecContext *xc,
117 Trace::InstRecord *traceData) const
118 {
119 Fault fault = NoFault;
120
121 %(fp_enable_check)s;
122 %(op_decl)s;
123 %(op_rd)s;
124 %(code)s;
125
126 if (fault == NoFault) {
127 %(op_wb)s;
128 }
129 return fault;
130 }
131}};
132
133def template DoFpOpExecute {{
134 Fault
135 %(class_name)s::doFpOp(ExecContext *xc,
136 Trace::InstRecord *traceData) const
137 {
138 Fault fault = NoFault;
139 %(op_decl)s;
140 %(op_rd)s;
141 %(fp_code)s;
142 if (fault == NoFault) {
143 %(op_wb)s;
144 }
145 return fault;
146 }
147}};
148
149// Basic decode template.
150def template BasicDecode {{
151 return new %(class_name)s(machInst);
152}};
153
154// Basic decode template, passing mnemonic in as string arg to constructor.
155def template BasicDecodeWithMnemonic {{
156 return new %(class_name)s("%(mnemonic)s", machInst);
157}};
158
159// The most basic instruction format... used only for a few misc. insts
160def format BasicOperate(code, *flags) {{
161 code = filterDoubles(code)
162 iop = InstObjParams(name, Name, 'SparcStaticInst', code, flags)
163 header_output = BasicDeclare.subst(iop)
164 decoder_output = BasicConstructor.subst(iop)
165 decode_block = BasicDecode.subst(iop)
166 exec_output = BasicExecute.subst(iop)
167}};
168
169def format FpBasic(code, *flags) {{
170 exec_code = """
171 Fsr |= bits(Fsr, 4, 0) << 5;
172 Fsr = insertBits(Fsr, 4, 0, 0);
173 int newrnd = M5_FE_TONEAREST;
174 switch (Fsr<31:30>) {
175 case 0: newrnd = M5_FE_TONEAREST; break;
176 case 1: newrnd = M5_FE_TOWARDZERO; break;
177 case 2: newrnd = M5_FE_UPWARD; break;
178 case 3: newrnd = M5_FE_DOWNWARD; break;
179 }
180 int oldrnd = m5_fegetround();
181 m5_fesetround(newrnd);
182 __asm__ __volatile__("" ::: "memory");
183 fault = doFpOp(xc, traceData);
184 __asm__ __volatile__("" ::: "memory");
185 m5_fesetround(oldrnd);
186 return fault;
187"""
188 fp_code = filterDoubles(code)
189 iop = InstObjParams(name, Name, 'SparcStaticInst',
190 { "code" : exec_code, "fp_code" : fp_code }, flags)
191 header_output = FpBasicDeclare.subst(iop)
192 decoder_output = BasicConstructor.subst(iop)
193 decode_block = BasicDecode.subst(iop)
194 exec_output = BasicExecute.subst(iop)
195 exec_output += DoFpOpExecute.subst(iop)
196}};
| 72 };
73}};
74
75// Basic instruction class constructor template.
76def template BasicConstructor {{
77 %(class_name)s::%(class_name)s(ExtMachInst machInst)
78 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
79 {
80 %(constructor)s;
81 }
82}};
83
84// Basic instruction class constructor template.
85def template BasicConstructorWithMnemonic {{
86 %(class_name)s::%(class_name)s(const char * mnemonic,
87 ExtMachInst machInst)
88 : %(base_class)s(mnemonic, machInst, %(op_class)s)
89 {
90 %(constructor)s;
91 }
92}};
93
94// Basic instruction class execute method template.
95def template BasicExecute {{
96 Fault
97 %(class_name)s::execute(ExecContext *xc,
98 Trace::InstRecord *traceData) const
99 {
100 Fault fault = NoFault;
101
102 %(fp_enable_check)s;
103 %(op_decl)s;
104 %(op_rd)s;
105 %(code)s;
106
107 if (fault == NoFault) {
108 %(op_wb)s;
109 }
110 return fault;
111 }
112}};
113
114def template DoFpOpExecute {{
115 Fault
116 %(class_name)s::doFpOp(ExecContext *xc,
117 Trace::InstRecord *traceData) const
118 {
119 Fault fault = NoFault;
120 %(op_decl)s;
121 %(op_rd)s;
122 %(fp_code)s;
123 if (fault == NoFault) {
124 %(op_wb)s;
125 }
126 return fault;
127 }
128}};
129
130// Basic decode template.
131def template BasicDecode {{
132 return new %(class_name)s(machInst);
133}};
134
135// Basic decode template, passing mnemonic in as string arg to constructor.
136def template BasicDecodeWithMnemonic {{
137 return new %(class_name)s("%(mnemonic)s", machInst);
138}};
139
140// The most basic instruction format... used only for a few misc. insts
141def format BasicOperate(code, *flags) {{
142 code = filterDoubles(code)
143 iop = InstObjParams(name, Name, 'SparcStaticInst', code, flags)
144 header_output = BasicDeclare.subst(iop)
145 decoder_output = BasicConstructor.subst(iop)
146 decode_block = BasicDecode.subst(iop)
147 exec_output = BasicExecute.subst(iop)
148}};
149
150def format FpBasic(code, *flags) {{
151 exec_code = """
152 Fsr |= bits(Fsr, 4, 0) << 5;
153 Fsr = insertBits(Fsr, 4, 0, 0);
154 int newrnd = M5_FE_TONEAREST;
155 switch (Fsr<31:30>) {
156 case 0: newrnd = M5_FE_TONEAREST; break;
157 case 1: newrnd = M5_FE_TOWARDZERO; break;
158 case 2: newrnd = M5_FE_UPWARD; break;
159 case 3: newrnd = M5_FE_DOWNWARD; break;
160 }
161 int oldrnd = m5_fegetround();
162 m5_fesetround(newrnd);
163 __asm__ __volatile__("" ::: "memory");
164 fault = doFpOp(xc, traceData);
165 __asm__ __volatile__("" ::: "memory");
166 m5_fesetround(oldrnd);
167 return fault;
168"""
169 fp_code = filterDoubles(code)
170 iop = InstObjParams(name, Name, 'SparcStaticInst',
171 { "code" : exec_code, "fp_code" : fp_code }, flags)
172 header_output = FpBasicDeclare.subst(iop)
173 decoder_output = BasicConstructor.subst(iop)
174 decode_block = BasicDecode.subst(iop)
175 exec_output = BasicExecute.subst(iop)
176 exec_output += DoFpOpExecute.subst(iop)
177}};
|