1/*
2 * Copyright (c) 2011-2013,2017 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 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Authors: Gabe Black
38 */
39#ifndef __ARCH_ARM_MEM64_HH__
40#define __ARCH_ARM_MEM64_HH__
41
42#include "arch/arm/insts/static_inst.hh"
43
44namespace ArmISA
45{
46
47class SysDC64 : public ArmStaticInst
48{
49 protected:
50 IntRegIndex base;
51 IntRegIndex dest;
52 uint64_t imm;
53
54 SysDC64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
55 IntRegIndex _base, MiscRegIndex miscReg, uint64_t _imm)
56 : ArmStaticInst(mnem, _machInst, __opClass), base(_base),
57 dest((IntRegIndex)miscReg), imm(_imm)
58 {}
59 std::string generateDisassembly(
60 Addr pc, const SymbolTable *symtab) const override;
61};
62
63class MightBeMicro64 : public ArmStaticInst
64{
65 protected:
66 MightBeMicro64(const char *mnem, ExtMachInst _machInst, OpClass __opClass)
67 : ArmStaticInst(mnem, _machInst, __opClass)
68 {}
69
70 void
71 advancePC(PCState &pcState) const
72 {
73 if (flags[IsLastMicroop]) {
74 pcState.uEnd();
75 } else if (flags[IsMicroop]) {
76 pcState.uAdvance();
77 } else {
78 pcState.advance();
79 }
80 }
81};
82
83class Memory64 : public MightBeMicro64
84{
85 public:
86 enum AddrMode {
87 AddrMd_Offset,
88 AddrMd_PreIndex,
89 AddrMd_PostIndex
90 };
91
92 protected:
93
94 IntRegIndex dest;
95 IntRegIndex base;
96 /// True if the base register is SP (used for SP alignment checking).
97 bool baseIsSP;
98 static const unsigned numMicroops = 3;
99
100 StaticInstPtr *uops;
101
102 Memory64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
103 IntRegIndex _dest, IntRegIndex _base)
104 : MightBeMicro64(mnem, _machInst, __opClass),
105 dest(_dest), base(_base), uops(NULL), memAccessFlags(0)
106 {
107 baseIsSP = isSP(_base);
108 }
109
110 virtual
111 ~Memory64()
112 {
113 delete [] uops;
114 }
115
116 StaticInstPtr
117 fetchMicroop(MicroPC microPC) const override
118 {
119 assert(uops != NULL && microPC < numMicroops);
120 return uops[microPC];
121 }
122
123 void startDisassembly(std::ostream &os) const;
124
125 unsigned memAccessFlags;
126
127 void setExcAcRel(bool exclusive, bool acrel);
128};
129
130class MemoryImm64 : public Memory64
131{
132 protected:
133 int64_t imm;
134
135 MemoryImm64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
136 IntRegIndex _dest, IntRegIndex _base, int64_t _imm)
137 : Memory64(mnem, _machInst, __opClass, _dest, _base), imm(_imm)
138 {}
139
140 std::string generateDisassembly(
141 Addr pc, const SymbolTable *symtab) const override;
142};
143
144class MemoryDImm64 : public MemoryImm64
145{
146 protected:
147 IntRegIndex dest2;
148
149 MemoryDImm64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
150 IntRegIndex _dest, IntRegIndex _dest2, IntRegIndex _base,
151 int64_t _imm)
152 : MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm),
153 dest2(_dest2)
154 {}
155
156 std::string generateDisassembly(
157 Addr pc, const SymbolTable *symtab) const override;
158};
159
160class MemoryDImmEx64 : public MemoryDImm64
161{
162 protected:
163 IntRegIndex result;
164
165 MemoryDImmEx64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
166 IntRegIndex _result, IntRegIndex _dest, IntRegIndex _dest2,
167 IntRegIndex _base, int32_t _imm)
168 : MemoryDImm64(mnem, _machInst, __opClass, _dest, _dest2,
169 _base, _imm), result(_result)
170 {}
171
172 std::string generateDisassembly(
173 Addr pc, const SymbolTable *symtab) const override;
174};
175
176class MemoryPreIndex64 : public MemoryImm64
177{
178 protected:
179 MemoryPreIndex64(const char *mnem, ExtMachInst _machInst,
180 OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
181 int64_t _imm)
182 : MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm)
183 {}
184
185 std::string generateDisassembly(
186 Addr pc, const SymbolTable *symtab) const override;
187};
188
189class MemoryPostIndex64 : public MemoryImm64
190{
191 protected:
192 MemoryPostIndex64(const char *mnem, ExtMachInst _machInst,
193 OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
194 int64_t _imm)
195 : MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm)
196 {}
197
198 std::string generateDisassembly(
199 Addr pc, const SymbolTable *symtab) const override;
200};
201
202class MemoryReg64 : public Memory64
203{
204 protected:
205 IntRegIndex offset;
206 ArmExtendType type;
207 uint64_t shiftAmt;
208
209 MemoryReg64(const char *mnem, ExtMachInst _machInst,
210 OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
211 IntRegIndex _offset, ArmExtendType _type,
212 uint64_t _shiftAmt)
213 : Memory64(mnem, _machInst, __opClass, _dest, _base),
214 offset(_offset), type(_type), shiftAmt(_shiftAmt)
215 {}
216
217 std::string generateDisassembly(
218 Addr pc, const SymbolTable *symtab) const override;
219};
220
221class MemoryRaw64 : public Memory64
222{
223 protected:
224 MemoryRaw64(const char *mnem, ExtMachInst _machInst,
225 OpClass __opClass, IntRegIndex _dest, IntRegIndex _base)
226 : Memory64(mnem, _machInst, __opClass, _dest, _base)
227 {}
228
229 std::string generateDisassembly(
230 Addr pc, const SymbolTable *symtab) const override;
231};
232
233class MemoryEx64 : public Memory64
234{
235 protected:
236 IntRegIndex result;
237
238 MemoryEx64(const char *mnem, ExtMachInst _machInst,
239 OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
240 IntRegIndex _result)
241 : Memory64(mnem, _machInst, __opClass, _dest, _base), result(_result)
242 {}
243
244 std::string generateDisassembly(
245 Addr pc, const SymbolTable *symtab) const override;
246};
247
248class MemoryLiteral64 : public Memory64
249{
250 protected:
251 int64_t imm;
252
253 MemoryLiteral64(const char *mnem, ExtMachInst _machInst,
254 OpClass __opClass, IntRegIndex _dest, int64_t _imm)
255 : Memory64(mnem, _machInst, __opClass, _dest, INTREG_ZERO), imm(_imm)
256 {}
257
258 std::string generateDisassembly(
259 Addr pc, const SymbolTable *symtab) const override;
260};
261}
262
263#endif //__ARCH_ARM_INSTS_MEM_HH__