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(%(CPU_exec_context)s *, Trace::InstRecord *) const;
34}};
35
36// Definitions of execute methods that panic.
37def template BasicExecPanic {{
38 Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const
39 {
40 panic("Execute method called when it shouldn't!");
41 M5_DUMMY_RETURN
42 }
43}};
44
45// Basic instruction class declaration template.
46def template BasicDeclare {{
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);
55 %(BasicExecDeclare)s
56 };
57}};
58
59// Basic instruction class constructor template.
60def template BasicConstructor {{
61 inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
62 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
63 {
64 %(constructor)s;
65 }
66}};
67
68// Basic instruction class execute method template.
69def template BasicExecute {{
70 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
71 Trace::InstRecord *traceData) const
72 {
73 Fault fault = NoFault;
74
75 %(fp_enable_check)s;
76 %(op_decl)s;
77 %(op_rd)s;
78 %(code)s;
79
80 if(fault == NoFault)
81 {
82 %(op_wb)s;
83 }
84 return fault;
85 }
86}};
87
88// Basic decode template.
89def template BasicDecode {{
90 return new %(class_name)s(machInst);
91}};
92
93// Basic decode template, passing mnemonic in as string arg to constructor.
94def template BasicDecodeWithMnemonic {{
95 return new %(class_name)s("%(mnemonic)s", machInst);
96}};
97
98// The most basic instruction format... used only for a few misc. insts
99def format BasicOperate(code, *flags) {{
| 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(%(CPU_exec_context)s *, Trace::InstRecord *) const;
34}};
35
36// Definitions of execute methods that panic.
37def template BasicExecPanic {{
38 Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const
39 {
40 panic("Execute method called when it shouldn't!");
41 M5_DUMMY_RETURN
42 }
43}};
44
45// Basic instruction class declaration template.
46def template BasicDeclare {{
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);
55 %(BasicExecDeclare)s
56 };
57}};
58
59// Basic instruction class constructor template.
60def template BasicConstructor {{
61 inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
62 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
63 {
64 %(constructor)s;
65 }
66}};
67
68// Basic instruction class execute method template.
69def template BasicExecute {{
70 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
71 Trace::InstRecord *traceData) const
72 {
73 Fault fault = NoFault;
74
75 %(fp_enable_check)s;
76 %(op_decl)s;
77 %(op_rd)s;
78 %(code)s;
79
80 if(fault == NoFault)
81 {
82 %(op_wb)s;
83 }
84 return fault;
85 }
86}};
87
88// Basic decode template.
89def template BasicDecode {{
90 return new %(class_name)s(machInst);
91}};
92
93// Basic decode template, passing mnemonic in as string arg to constructor.
94def template BasicDecodeWithMnemonic {{
95 return new %(class_name)s("%(mnemonic)s", machInst);
96}};
97
98// The most basic instruction format... used only for a few misc. insts
99def format BasicOperate(code, *flags) {{
|
100 iop = InstObjParams(name, Name, 'SparcStaticInst', code, flags)
101 header_output = BasicDeclare.subst(iop)
102 decoder_output = BasicConstructor.subst(iop)
103 decode_block = BasicDecode.subst(iop)
104 exec_output = BasicExecute.subst(iop)
105}};
106
107def format FpBasic(code, *flags) {{
108 fp_code = """
109 Fsr |= bits(Fsr,4,0) << 5;
110 Fsr = insertBits(Fsr,4,0,0);
111#if defined(__sun) || defined (__OpenBSD__)
112 fp_rnd newrnd = FP_RN;
113 switch (Fsr<31:30>) {
114 case 0: newrnd = FP_RN; break;
115 case 1: newrnd = FP_RZ; break;
116 case 2: newrnd = FP_RP; break;
117 case 3: newrnd = FP_RM; break;
118 }
119 fp_rnd oldrnd = fpsetround(newrnd);
120#else
121 int newrnd = FE_TONEAREST;
122 switch (Fsr<31:30>) {
123 case 0: newrnd = FE_TONEAREST; break;
124 case 1: newrnd = FE_TOWARDZERO; break;
125 case 2: newrnd = FE_UPWARD; break;
126 case 3: newrnd = FE_DOWNWARD; break;
127 }
128 int oldrnd = fegetround();
129 fesetround(newrnd);
130#endif
131"""
132
133 fp_code += code
134
135
136 fp_code += """
137#if defined(__sun) || defined (__OpenBSD__)
138 fpsetround(oldrnd);
139#else
140 fesetround(oldrnd);
141#endif
142"""
| 101 iop = InstObjParams(name, Name, 'SparcStaticInst', code, flags)
102 header_output = BasicDeclare.subst(iop)
103 decoder_output = BasicConstructor.subst(iop)
104 decode_block = BasicDecode.subst(iop)
105 exec_output = BasicExecute.subst(iop)
106}};
107
108def format FpBasic(code, *flags) {{
109 fp_code = """
110 Fsr |= bits(Fsr,4,0) << 5;
111 Fsr = insertBits(Fsr,4,0,0);
112#if defined(__sun) || defined (__OpenBSD__)
113 fp_rnd newrnd = FP_RN;
114 switch (Fsr<31:30>) {
115 case 0: newrnd = FP_RN; break;
116 case 1: newrnd = FP_RZ; break;
117 case 2: newrnd = FP_RP; break;
118 case 3: newrnd = FP_RM; break;
119 }
120 fp_rnd oldrnd = fpsetround(newrnd);
121#else
122 int newrnd = FE_TONEAREST;
123 switch (Fsr<31:30>) {
124 case 0: newrnd = FE_TONEAREST; break;
125 case 1: newrnd = FE_TOWARDZERO; break;
126 case 2: newrnd = FE_UPWARD; break;
127 case 3: newrnd = FE_DOWNWARD; break;
128 }
129 int oldrnd = fegetround();
130 fesetround(newrnd);
131#endif
132"""
133
134 fp_code += code
135
136
137 fp_code += """
138#if defined(__sun) || defined (__OpenBSD__)
139 fpsetround(oldrnd);
140#else
141 fesetround(oldrnd);
142#endif
143"""
|
143 iop = InstObjParams(name, Name, 'SparcStaticInst', fp_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}};
| 145 iop = InstObjParams(name, Name, 'SparcStaticInst', fp_code, flags)
146 header_output = BasicDeclare.subst(iop)
147 decoder_output = BasicConstructor.subst(iop)
148 decode_block = BasicDecode.subst(iop)
149 exec_output = BasicExecute.subst(iop)
150}};
|