1/*
2 * Copyright (c) 2010 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2007-2008 The Florida State University
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Stephen Hines
41 */
42
43#ifndef __ARCH_ARM_TYPES_HH__
44#define __ARCH_ARM_TYPES_HH__
45
46#include "base/bitunion.hh"
47#include "base/types.hh"
48
49namespace ArmISA
50{
51 typedef uint32_t MachInst;
52
53 BitUnion64(ExtMachInst)
| 1/*
2 * Copyright (c) 2010 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2007-2008 The Florida State University
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Stephen Hines
41 */
42
43#ifndef __ARCH_ARM_TYPES_HH__
44#define __ARCH_ARM_TYPES_HH__
45
46#include "base/bitunion.hh"
47#include "base/types.hh"
48
49namespace ArmISA
50{
51 typedef uint32_t MachInst;
52
53 BitUnion64(ExtMachInst)
|
54 // FPSCR fields
55 Bitfield<41, 40> fpscrStride;
56 Bitfield<39, 37> fpscrLen;
57
58 // Bitfields to select mode.
59 Bitfield<36> thumb;
60 Bitfield<35> bigThumb;
61
62 // Made up bitfields that make life easier.
63 Bitfield<33> sevenAndFour;
64 Bitfield<32> isMisc;
65
66 uint32_t instBits;
67
68 // All the different types of opcode fields.
69 Bitfield<27, 25> encoding;
70 Bitfield<25> useImm;
71 Bitfield<24, 21> opcode;
72 Bitfield<24, 20> mediaOpcode;
73 Bitfield<24> opcode24;
74 Bitfield<24, 23> opcode24_23;
75 Bitfield<23, 20> opcode23_20;
76 Bitfield<23, 21> opcode23_21;
77 Bitfield<20> opcode20;
78 Bitfield<22> opcode22;
79 Bitfield<19, 16> opcode19_16;
80 Bitfield<19> opcode19;
81 Bitfield<18> opcode18;
82 Bitfield<15, 12> opcode15_12;
83 Bitfield<15> opcode15;
84 Bitfield<7, 4> miscOpcode;
85 Bitfield<7,5> opc2;
86 Bitfield<7> opcode7;
87 Bitfield<6> opcode6;
88 Bitfield<4> opcode4;
89
90 Bitfield<31, 28> condCode;
91 Bitfield<20> sField;
92 Bitfield<19, 16> rn;
93 Bitfield<15, 12> rd;
94 Bitfield<15, 12> rt;
95 Bitfield<11, 7> shiftSize;
96 Bitfield<6, 5> shift;
97 Bitfield<3, 0> rm;
98
99 Bitfield<11, 8> rs;
100
101 SubBitUnion(puswl, 24, 20)
102 Bitfield<24> prepost;
103 Bitfield<23> up;
104 Bitfield<22> psruser;
105 Bitfield<21> writeback;
106 Bitfield<20> loadOp;
107 EndSubBitUnion(puswl)
108
109 Bitfield<24, 20> pubwl;
110
111 Bitfield<7, 0> imm;
112
113 Bitfield<11, 8> rotate;
114
115 Bitfield<11, 0> immed11_0;
116 Bitfield<7, 0> immed7_0;
117
118 Bitfield<11, 8> immedHi11_8;
119 Bitfield<3, 0> immedLo3_0;
120
121 Bitfield<15, 0> regList;
122
123 Bitfield<23, 0> offset;
124
125 Bitfield<23, 0> immed23_0;
126
127 Bitfield<11, 8> cpNum;
128 Bitfield<18, 16> fn;
129 Bitfield<14, 12> fd;
130 Bitfield<3> fpRegImm;
131 Bitfield<3, 0> fm;
132 Bitfield<2, 0> fpImm;
133 Bitfield<24, 20> punwl;
134
135 Bitfield<7, 0> m5Func;
136
137 // 16 bit thumb bitfields
138 Bitfield<15, 13> topcode15_13;
139 Bitfield<13, 11> topcode13_11;
140 Bitfield<12, 11> topcode12_11;
141 Bitfield<12, 10> topcode12_10;
142 Bitfield<11, 9> topcode11_9;
143 Bitfield<11, 8> topcode11_8;
144 Bitfield<10, 9> topcode10_9;
145 Bitfield<10, 8> topcode10_8;
146 Bitfield<9, 6> topcode9_6;
147 Bitfield<7> topcode7;
148 Bitfield<7, 6> topcode7_6;
149 Bitfield<7, 5> topcode7_5;
150 Bitfield<7, 4> topcode7_4;
151 Bitfield<3, 0> topcode3_0;
152
153 // 32 bit thumb bitfields
154 Bitfield<28, 27> htopcode12_11;
155 Bitfield<26, 25> htopcode10_9;
156 Bitfield<25> htopcode9;
157 Bitfield<25, 24> htopcode9_8;
158 Bitfield<25, 21> htopcode9_5;
159 Bitfield<25, 20> htopcode9_4;
160 Bitfield<24> htopcode8;
161 Bitfield<24, 23> htopcode8_7;
162 Bitfield<24, 22> htopcode8_6;
163 Bitfield<24, 21> htopcode8_5;
164 Bitfield<23> htopcode7;
165 Bitfield<23, 21> htopcode7_5;
166 Bitfield<22> htopcode6;
167 Bitfield<22, 21> htopcode6_5;
168 Bitfield<21, 20> htopcode5_4;
169 Bitfield<20> htopcode4;
170
171 Bitfield<19, 16> htrn;
172 Bitfield<20> hts;
173
174 Bitfield<15> ltopcode15;
175 Bitfield<11, 8> ltopcode11_8;
176 Bitfield<7, 6> ltopcode7_6;
177 Bitfield<7, 4> ltopcode7_4;
178 Bitfield<4> ltopcode4;
179
180 Bitfield<11, 8> ltrd;
181 Bitfield<11, 8> ltcoproc;
182 EndBitUnion(ExtMachInst)
183
184 // Shift types for ARM instructions
185 enum ArmShiftType {
186 LSL = 0,
187 LSR,
188 ASR,
189 ROR
190 };
191
192 typedef uint64_t LargestRead;
193 // Need to use 64 bits to make sure that read requests get handled properly
194
195 typedef int RegContextParam;
196 typedef int RegContextVal;
197
198 //used in FP convert & round function
199 enum ConvertType{
200 SINGLE_TO_DOUBLE,
201 SINGLE_TO_WORD,
202 SINGLE_TO_LONG,
203
204 DOUBLE_TO_SINGLE,
205 DOUBLE_TO_WORD,
206 DOUBLE_TO_LONG,
207
208 LONG_TO_SINGLE,
209 LONG_TO_DOUBLE,
210 LONG_TO_WORD,
211 LONG_TO_PS,
212
213 WORD_TO_SINGLE,
214 WORD_TO_DOUBLE,
215 WORD_TO_LONG,
216 WORD_TO_PS,
217
218 PL_TO_SINGLE,
219 PU_TO_SINGLE
220 };
221
222 //used in FP convert & round function
223 enum RoundMode{
224 RND_ZERO,
225 RND_DOWN,
226 RND_UP,
227 RND_NEAREST
228 };
229
230 enum OperatingMode {
231 MODE_USER = 16,
232 MODE_FIQ = 17,
233 MODE_IRQ = 18,
234 MODE_SVC = 19,
235 MODE_MON = 22,
236 MODE_ABORT = 23,
237 MODE_UNDEFINED = 27,
238 MODE_SYSTEM = 31
239 };
240
241 static inline bool
242 badMode(OperatingMode mode)
243 {
244 switch (mode) {
245 case MODE_USER:
246 case MODE_FIQ:
247 case MODE_IRQ:
248 case MODE_SVC:
249 case MODE_MON:
250 case MODE_ABORT:
251 case MODE_UNDEFINED:
252 case MODE_SYSTEM:
253 return false;
254 default:
255 return true;
256 }
257 }
258
259 struct CoreSpecific {
260 // Empty for now on the ARM
261 };
262
263} // namespace ArmISA
264
265#endif
| 60 // FPSCR fields
61 Bitfield<41, 40> fpscrStride;
62 Bitfield<39, 37> fpscrLen;
63
64 // Bitfields to select mode.
65 Bitfield<36> thumb;
66 Bitfield<35> bigThumb;
67
68 // Made up bitfields that make life easier.
69 Bitfield<33> sevenAndFour;
70 Bitfield<32> isMisc;
71
72 uint32_t instBits;
73
74 // All the different types of opcode fields.
75 Bitfield<27, 25> encoding;
76 Bitfield<25> useImm;
77 Bitfield<24, 21> opcode;
78 Bitfield<24, 20> mediaOpcode;
79 Bitfield<24> opcode24;
80 Bitfield<24, 23> opcode24_23;
81 Bitfield<23, 20> opcode23_20;
82 Bitfield<23, 21> opcode23_21;
83 Bitfield<20> opcode20;
84 Bitfield<22> opcode22;
85 Bitfield<19, 16> opcode19_16;
86 Bitfield<19> opcode19;
87 Bitfield<18> opcode18;
88 Bitfield<15, 12> opcode15_12;
89 Bitfield<15> opcode15;
90 Bitfield<7, 4> miscOpcode;
91 Bitfield<7,5> opc2;
92 Bitfield<7> opcode7;
93 Bitfield<6> opcode6;
94 Bitfield<4> opcode4;
95
96 Bitfield<31, 28> condCode;
97 Bitfield<20> sField;
98 Bitfield<19, 16> rn;
99 Bitfield<15, 12> rd;
100 Bitfield<15, 12> rt;
101 Bitfield<11, 7> shiftSize;
102 Bitfield<6, 5> shift;
103 Bitfield<3, 0> rm;
104
105 Bitfield<11, 8> rs;
106
107 SubBitUnion(puswl, 24, 20)
108 Bitfield<24> prepost;
109 Bitfield<23> up;
110 Bitfield<22> psruser;
111 Bitfield<21> writeback;
112 Bitfield<20> loadOp;
113 EndSubBitUnion(puswl)
114
115 Bitfield<24, 20> pubwl;
116
117 Bitfield<7, 0> imm;
118
119 Bitfield<11, 8> rotate;
120
121 Bitfield<11, 0> immed11_0;
122 Bitfield<7, 0> immed7_0;
123
124 Bitfield<11, 8> immedHi11_8;
125 Bitfield<3, 0> immedLo3_0;
126
127 Bitfield<15, 0> regList;
128
129 Bitfield<23, 0> offset;
130
131 Bitfield<23, 0> immed23_0;
132
133 Bitfield<11, 8> cpNum;
134 Bitfield<18, 16> fn;
135 Bitfield<14, 12> fd;
136 Bitfield<3> fpRegImm;
137 Bitfield<3, 0> fm;
138 Bitfield<2, 0> fpImm;
139 Bitfield<24, 20> punwl;
140
141 Bitfield<7, 0> m5Func;
142
143 // 16 bit thumb bitfields
144 Bitfield<15, 13> topcode15_13;
145 Bitfield<13, 11> topcode13_11;
146 Bitfield<12, 11> topcode12_11;
147 Bitfield<12, 10> topcode12_10;
148 Bitfield<11, 9> topcode11_9;
149 Bitfield<11, 8> topcode11_8;
150 Bitfield<10, 9> topcode10_9;
151 Bitfield<10, 8> topcode10_8;
152 Bitfield<9, 6> topcode9_6;
153 Bitfield<7> topcode7;
154 Bitfield<7, 6> topcode7_6;
155 Bitfield<7, 5> topcode7_5;
156 Bitfield<7, 4> topcode7_4;
157 Bitfield<3, 0> topcode3_0;
158
159 // 32 bit thumb bitfields
160 Bitfield<28, 27> htopcode12_11;
161 Bitfield<26, 25> htopcode10_9;
162 Bitfield<25> htopcode9;
163 Bitfield<25, 24> htopcode9_8;
164 Bitfield<25, 21> htopcode9_5;
165 Bitfield<25, 20> htopcode9_4;
166 Bitfield<24> htopcode8;
167 Bitfield<24, 23> htopcode8_7;
168 Bitfield<24, 22> htopcode8_6;
169 Bitfield<24, 21> htopcode8_5;
170 Bitfield<23> htopcode7;
171 Bitfield<23, 21> htopcode7_5;
172 Bitfield<22> htopcode6;
173 Bitfield<22, 21> htopcode6_5;
174 Bitfield<21, 20> htopcode5_4;
175 Bitfield<20> htopcode4;
176
177 Bitfield<19, 16> htrn;
178 Bitfield<20> hts;
179
180 Bitfield<15> ltopcode15;
181 Bitfield<11, 8> ltopcode11_8;
182 Bitfield<7, 6> ltopcode7_6;
183 Bitfield<7, 4> ltopcode7_4;
184 Bitfield<4> ltopcode4;
185
186 Bitfield<11, 8> ltrd;
187 Bitfield<11, 8> ltcoproc;
188 EndBitUnion(ExtMachInst)
189
190 // Shift types for ARM instructions
191 enum ArmShiftType {
192 LSL = 0,
193 LSR,
194 ASR,
195 ROR
196 };
197
198 typedef uint64_t LargestRead;
199 // Need to use 64 bits to make sure that read requests get handled properly
200
201 typedef int RegContextParam;
202 typedef int RegContextVal;
203
204 //used in FP convert & round function
205 enum ConvertType{
206 SINGLE_TO_DOUBLE,
207 SINGLE_TO_WORD,
208 SINGLE_TO_LONG,
209
210 DOUBLE_TO_SINGLE,
211 DOUBLE_TO_WORD,
212 DOUBLE_TO_LONG,
213
214 LONG_TO_SINGLE,
215 LONG_TO_DOUBLE,
216 LONG_TO_WORD,
217 LONG_TO_PS,
218
219 WORD_TO_SINGLE,
220 WORD_TO_DOUBLE,
221 WORD_TO_LONG,
222 WORD_TO_PS,
223
224 PL_TO_SINGLE,
225 PU_TO_SINGLE
226 };
227
228 //used in FP convert & round function
229 enum RoundMode{
230 RND_ZERO,
231 RND_DOWN,
232 RND_UP,
233 RND_NEAREST
234 };
235
236 enum OperatingMode {
237 MODE_USER = 16,
238 MODE_FIQ = 17,
239 MODE_IRQ = 18,
240 MODE_SVC = 19,
241 MODE_MON = 22,
242 MODE_ABORT = 23,
243 MODE_UNDEFINED = 27,
244 MODE_SYSTEM = 31
245 };
246
247 static inline bool
248 badMode(OperatingMode mode)
249 {
250 switch (mode) {
251 case MODE_USER:
252 case MODE_FIQ:
253 case MODE_IRQ:
254 case MODE_SVC:
255 case MODE_MON:
256 case MODE_ABORT:
257 case MODE_UNDEFINED:
258 case MODE_SYSTEM:
259 return false;
260 default:
261 return true;
262 }
263 }
264
265 struct CoreSpecific {
266 // Empty for now on the ARM
267 };
268
269} // namespace ArmISA
270
271#endif
|