1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
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 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use. Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 * Director of Intellectual Property Licensing
21 * Office of Strategy and Technology
22 * Hewlett-Packard Company
23 * 1501 Page Mill Road
24 * Palo Alto, California 94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer. Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution. Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
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
33 * this software without specific prior written permission. No right of
34 * sublicense is granted herewith. Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses. Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
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
40#include "arch/x86/insts/static_inst.hh"
41#include "arch/x86/segmentregs.hh"
42
43namespace X86ISA
44{
45 void X86StaticInst::printMnemonic(std::ostream &os,
46 const char * mnemonic) const
47 {
48 ccprintf(os, " %s ", mnemonic);
49 }
50
51 void X86StaticInst::printMnemonic(std::ostream &os,
52 const char * instMnemonic, const char * mnemonic) const
53 {
54 ccprintf(os, " %s : %s ", instMnemonic, mnemonic);
55 }
56
57 void X86StaticInst::printSegment(std::ostream &os, int segment) const
58 {
59 switch (segment)
60 {
61 case SEGMENT_REG_ES:
62 ccprintf(os, "ES");
63 break;
64 case SEGMENT_REG_CS:
65 ccprintf(os, "CS");
66 break;
67 case SEGMENT_REG_SS:
68 ccprintf(os, "SS");
69 break;
70 case SEGMENT_REG_DS:
71 ccprintf(os, "DS");
72 break;
73 case SEGMENT_REG_FS:
74 ccprintf(os, "FS");
75 break;
76 case SEGMENT_REG_GS:
77 ccprintf(os, "GS");
78 break;
79 case SEGMENT_REG_HS:
80 ccprintf(os, "HS");
81 break;
82 case SEGMENT_REG_TSL:
83 ccprintf(os, "TSL");
84 break;
85 case SEGMENT_REG_TSG:
86 ccprintf(os, "TSG");
87 break;
88 case SEGMENT_REG_LS:
89 ccprintf(os, "LS");
90 break;
91 case SEGMENT_REG_MS:
92 ccprintf(os, "MS");
93 break;
94 case SYS_SEGMENT_REG_TR:
95 ccprintf(os, "TR");
96 break;
97 case SYS_SEGMENT_REG_IDTR:
98 ccprintf(os, "IDTR");
99 break;
100 default:
101 panic("Unrecognized segment %d\n", segment);
102 }
103 }
104
105 void
106 X86StaticInst::printSrcReg(std::ostream &os, int reg, int size) const
107 {
108 if(_numSrcRegs > reg)
109 printReg(os, _srcRegIdx[reg], size);
110 }
111
112 void
113 X86StaticInst::printDestReg(std::ostream &os, int reg, int size) const
114 {
115 if(_numDestRegs > reg)
116 printReg(os, _destRegIdx[reg], size);
117 }
118
119 void
120 X86StaticInst::printReg(std::ostream &os, int reg, int size) const
121 {
122 assert(size == 1 || size == 2 || size == 4 || size == 8);
123 static const char * abcdFormats[9] =
124 {"", "%s", "%sx", "", "e%sx", "", "", "", "r%sx"};
125 static const char * piFormats[9] =
126 {"", "%s", "%s", "", "e%s", "", "", "", "r%s"};
127 static const char * longFormats[9] =
128 {"", "r%sb", "r%sw", "", "r%sd", "", "", "", "r%s"};
129 static const char * microFormats[9] =
130 {"", "t%db", "t%dw", "", "t%dd", "", "", "", "t%d"};
131
132 if (reg < FP_Base_DepTag) {
133 const char * suffix = "";
134 bool fold = reg & IntFoldBit;
135 reg &= ~IntFoldBit;
136
137 if(fold)
138 suffix = "h";
139 else if(reg < 8 && size == 1)
140 suffix = "l";
141
142 switch (reg) {
143 case INTREG_RAX:
144 ccprintf(os, abcdFormats[size], "a");
145 break;
146 case INTREG_RBX:
147 ccprintf(os, abcdFormats[size], "b");
148 break;
149 case INTREG_RCX:
150 ccprintf(os, abcdFormats[size], "c");
151 break;
152 case INTREG_RDX:
153 ccprintf(os, abcdFormats[size], "d");
154 break;
155 case INTREG_RSP:
156 ccprintf(os, piFormats[size], "sp");
157 break;
158 case INTREG_RBP:
159 ccprintf(os, piFormats[size], "bp");
160 break;
161 case INTREG_RSI:
162 ccprintf(os, piFormats[size], "si");
163 break;
164 case INTREG_RDI:
165 ccprintf(os, piFormats[size], "di");
166 break;
167 case INTREG_R8W:
168 ccprintf(os, longFormats[size], "8");
169 break;
170 case INTREG_R9W:
171 ccprintf(os, longFormats[size], "9");
172 break;
173 case INTREG_R10W:
174 ccprintf(os, longFormats[size], "10");
175 break;
176 case INTREG_R11W:
177 ccprintf(os, longFormats[size], "11");
178 break;
179 case INTREG_R12W:
180 ccprintf(os, longFormats[size], "12");
181 break;
182 case INTREG_R13W:
183 ccprintf(os, longFormats[size], "13");
184 break;
185 case INTREG_R14W:
186 ccprintf(os, longFormats[size], "14");
187 break;
188 case INTREG_R15W:
189 ccprintf(os, longFormats[size], "15");
190 break;
191 default:
192 ccprintf(os, microFormats[size], reg - NUM_INTREGS);
193 }
194 ccprintf(os, suffix);
195 } else if (reg < Ctrl_Base_DepTag) {
196 int fpindex = reg - FP_Base_DepTag;
197 if(fpindex < NumMMXRegs) {
198 ccprintf(os, "%%mmx%d", reg - FP_Base_DepTag);
199 return;
200 }
201 fpindex -= NumMMXRegs;
202 if(fpindex < NumXMMRegs * 2) {
203 ccprintf(os, "%%xmm%d_%s", fpindex / 2,
204 (fpindex % 2) ? "high": "low");
205 return;
206 }
207 fpindex -= NumXMMRegs * 2;
208 if(fpindex < NumMicroFpRegs) {
209 ccprintf(os, "%%ufp%d", fpindex);
210 return;
211 }
212 fpindex -= NumMicroFpRegs;
213 ccprintf(os, "%%st(%d)", fpindex);
214 } else {
215 switch (reg - Ctrl_Base_DepTag) {
216 default:
217 ccprintf(os, "%%ctrl%d", reg - Ctrl_Base_DepTag);
218 }
219 }
220 }
221
222 void X86StaticInst::printMem(std::ostream &os, uint8_t segment,
223 uint8_t scale, RegIndex index, RegIndex base,
224 uint64_t disp, uint8_t addressSize, bool rip) const
225 {
226 bool someAddr = false;
227 printSegment(os, segment);
228 os << ":[";
229 if (rip) {
230 os << "rip";
231 someAddr = true;
232 } else {
233 if (scale != 0 && index != ZeroReg)
234 {
235 if(scale != 1)
236 ccprintf(os, "%d*", scale);
237 printReg(os, index, addressSize);
238 someAddr = true;
239 }
240 if (base != ZeroReg)
241 {
242 if(someAddr)
243 os << " + ";
244 printReg(os, base, addressSize);
245 someAddr = true;
246 }
247 }
248 if (disp != 0)
249 {
250 if(someAddr)
251 os << " + ";
252 ccprintf(os, "%#x", disp);
253 someAddr = true;
254 }
255 if (!someAddr)
256 os << "0";
257 os << "]";
258 }
259
260 std::string X86StaticInst::generateDisassembly(Addr pc,
261 const SymbolTable *symtab) const
262 {
263 std::stringstream ss;
264
265 printMnemonic(ss, mnemonic);
266
267 return ss.str();
268 }
269}