2 * Copyright 2009 The Native Client Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
8 * Defines two byte opcodes beginning with OF. Taken from:
9 * (1) Tables A-3 and A-4 of appendix "A2 - Opcode Encodings", in AMD
10 * document 24594-Rev.3.14-September 2007: "AMD64 Architecture
11 * Programmer's manual Volume 3: General-Purpose and System Instructions".
12 * (2) Table A-4 of "appendix A.3", in Intel Document 253667-030US (March 2009):
13 * "Intel 64 and IA-32 Architectures Software Developer's Manual,
14 * Volume 2g: Instruction Set Reference, N-Z."
16 * Note: The SSE instructions that begin with 0F are not defined here. Look
17 * at ncdecode_sse.c for the definitions of SSE instruction.
19 * Note: Invalid etries with f2 (REPNE) and f3 (REP) can be ommitted in
20 * the tables, because the corresponding entry without that prefix will
21 * be explicitly rejected (unless it is one of the special instructions
22 * that allow such prefixes).
25 #ifndef NACL_TRUSTED_BUT_NOT_TCB
26 #error("This file is not meant for use in the TCB")
29 #include "native_client/src/trusted/validator/x86/decoder/generator/ncdecode_forms.h"
30 #include "native_client/src/trusted/validator/x86/decoder/generator/ncdecode_tablegen.h"
32 static void NaCl3DNow0F0FInsts(struct NaClSymbolTable* st) {
33 /* All 3DNOW instructions of form: 0f 0f [modrm] [sib] [displacement]
36 * These instructions encode into "OP Pq, Qq", based on the value of
37 * imm8_opcode. We decode these instructions in two steps. The first
38 * step uses a OF0F instruction to read in the bytes of the instruction.
39 * These bytes are then inspected, and is replaced by the corresponding
40 * 3DNOW instruction in the OFOF prefix table. If no such entry is found,
41 * The original match is left so that the bytes are marked as an
42 * invalid 3dnow instruction.
44 * Note: 3DNow instructions are defined in document 21928G/0-March 2000:
45 * "3DNow!(TM) Technology Manual".
47 NaClBegDef(" 0f0f: Invalid $Pq, $Qq, $Ib",
49 NaClAddIFlags(NACL_IFLAG(Opcode0F0F));
51 NaClDefine(" 0f0f..0c: Pi2fw $Pq, $Qq", NACLi_E3DNOW, st, Move);
52 NaClDefine(" 0f0f..0d: Pi2fd $Pq, $Qq", NACLi_3DNOW, st, Move);
53 NaClDefine(" 0f0f..1c: Pf2iw $Pq, $Qq", NACLi_E3DNOW, st, Move);
54 NaClDefine(" 0f0f..1d: Pf2id $Pq, $Qq", NACLi_3DNOW, st, Move);
55 NaClDefine(" 0f0f..8a: Pfnacc $Pq, $Qq", NACLi_E3DNOW, st, Binary);
56 NaClDefine(" 0f0f..8e: Pfpnacc $Pq, $Qq", NACLi_E3DNOW, st, Binary);
57 NaClDefine(" 0f0f..90: Pfcmpge $Pq, $Qq", NACLi_3DNOW, st, Binary);
58 NaClDefine(" 0f0f..94: Pfmin $Pq, $Qq", NACLi_3DNOW, st, Binary);
59 NaClDefine(" 0f0f..96: Pfrcp $Pq, $Qq", NACLi_3DNOW, st, Move);
60 NaClDefine(" 0f0f..97: Pfrsqrt $Pq, $Qq", NACLi_3DNOW, st, Move);
61 NaClDefine(" 0f0f..9a: Pfsub $Pq, $Qq", NACLi_3DNOW, st, Binary);
62 NaClDefine(" 0f0f..9e: Pfadd $Pq, $Qq", NACLi_3DNOW, st, Binary);
63 NaClDefine(" 0f0f..a0: Pfcmpgt $Pq, $Qq", NACLi_3DNOW, st, Binary);
64 NaClDefine(" 0f0f..a4: Pfmax $Pq, $Qq", NACLi_3DNOW, st, Binary);
65 NaClDefine(" 0f0f..a6: Pfrcpit1 $Pq, $Qq", NACLi_3DNOW, st, Binary);
66 NaClDefine(" 0f0f..a7: Pfrsqit1 $Pq, $Qq", NACLi_3DNOW, st, Binary);
67 NaClDefine(" 0f0f..aa: Pfsubr $Pq, $Qq", NACLi_3DNOW, st, Binary);
68 NaClDefine(" 0f0f..ae: Pfacc $Pq, $Qq", NACLi_3DNOW, st, Binary);
69 NaClDefine(" 0f0f..b0: Pfcmpeq $Pq, $Qq", NACLi_3DNOW, st, Binary);
70 NaClDefine(" 0f0f..b4: Pfmul $Pq, $Qq", NACLi_3DNOW, st, Binary);
71 NaClDefine(" 0f0f..b6: Pfrcpit2 $Pq, $Qq", NACLi_3DNOW, st, Binary);
72 NaClDefine(" 0f0f..b7: Pmulhrw $Pq, $Qq", NACLi_3DNOW, st, Binary);
73 NaClDefine(" 0f0f..bb: Pswapd $Pq, $Qq", NACLi_E3DNOW, st, Move);
74 NaClDefine(" 0f0f..bf: Pavgusb $Pq, $Qq", NACLi_3DNOW, st, Binary);
77 void NaClDef0FInsts(struct NaClSymbolTable* st) {
79 NaClDefPrefixInstMrmChoices(Prefix0F, 0x01, 1, 4);
80 NaClDefPrefixInstMrmChoices(Prefix0F, 0x01, 3, 9);
81 NaClDefPrefixInstMrmChoices_32_64(Prefix0F, 0x01, 7, 2, 4);
82 NaClDefPrefixInstMrmChoices_32_64(Prefix0F, 0xc7, 1, 1, 2);
83 NaClDefPrefixInstMrmChoices(Prefix0F, 0xae, 5, 8);
84 NaClDefPrefixInstMrmChoices(Prefix0F, 0xae, 6, 8);
85 NaClDefPrefixInstMrmChoices(Prefix0F, 0xae, 7, 9);
87 NaClDefine(" 0f00/0: Sldt $Mw/Rv", NACLi_SYSTEM, st, Sets);
88 NaClDefine(" 0f00/1: Str $Mw/Rv", NACLi_SYSTEM, st, Sets);
89 NaClDefine(" 0f00/2: Lldt $Ew", NACLi_SYSTEM, st, Uses);
90 NaClDefine(" 0f00/3: Ltr $Ew", NACLi_SYSTEM, st, Uses);
91 NaClDefine(" 0f00/4: Verr $Ew", NACLi_SYSTEM, st, Other);
92 NaClDefine(" 0f00/5: Verw $Ew", NACLi_SYSTEM, st, Other);
93 NaClDefIter(" 0f00/@i: Invalid", 6, 7, NACLi_INVALID, st, Other);
94 NaClDefine(" 0f01/0: Sgdt $Ms", NACLi_SYSTEM, st, Sets);
95 NaClDefine(" 0f01/1: Sidt $Ms", NACLi_SYSTEM, st, Sets);
96 NaClDefine(" 0f01/1/0: Monitor %reax, %ecx, %edx",
97 NACLi_SYSTEM, st, Uses);
98 NaClDefine(" 0f01/1/1: Mwait %eax, %ecx", NACLi_SYSTEM, st, Other);
99 NaClDefine(" 0f01/1: Invalid", NACLi_INVALID, st, Other);
100 NaClDefine(" 0f01/2: Lgdt $Ms", NACLi_SYSTEM, st, Uses);
101 NaClDefine(" 0f01/3: Lidt $Ms", NACLi_SYSTEM, st, Uses);
102 NaClDef_64(" 0f01/3/0: Vmrun $rAXva", NACLi_SVM, st, Uses);
103 NaClDefine(" 0f01/3/1: Vmmcall", NACLi_SVM, st, Other);
104 NaClDefine(" 0f01/3/2: Vmload $rAXva", NACLi_SVM, st, Uses);
105 NaClDefine(" 0f01/3/3: Vmsave $rAXva", NACLi_SVM, st, Uses);
106 NaClDefine(" 0f01/3/4: Stgi", NACLi_SVM, st, Other);
107 NaClDefine(" 0f01/3/5: Clgi", NACLi_SVM, st, Other);
108 NaClDefine(" 0f01/3/6: Skinit {%eip}, %eax", NACLi_SVM, st, Jump);
109 NaClDefine(" 0f01/3/7: Invlpga $rAXva, %ecx",
110 NACLi_SVM, st, Uses);
111 NaClDef_32(" 0f01/3: Invalid", NACLi_INVALID, st, Other);
112 NaClDefine(" 0f01/4: Smsw $Mw/Rv", NACLi_SYSTEM, st, Sets);
113 NaClDefine(" 0f01/5: Invalid", NACLi_INVALID, st, Other);
114 NaClDefine(" 0f01/6: Lmsw $Ew", NACLi_INVALID, st, Uses);
115 NaClDefine(" 0f01/7: Invlpg $Mb", NACLi_SYSTEM, st, Uses);
116 NaClDef_64(" 0f01/7/0: Swapgs {%gs}", NACLi_SYSTEM, st, Sets);
117 NaClDef_64(" 0f01/7/1: Rdtscp {%rdx}, {%rax}, {%rcx}",
118 NACLi_RDTSCP, st, Sets);
119 NaClDefine(" 0f01/7: Invalid", NACLi_INVALID, st, Other);
120 /* Note: Xed appears to use Ev for second argument for Lar aand Lsl. */
121 NaClDefine(" 0f02: Lar $Gv, $Ew", NACLi_SYSTEM, st, Other);
122 NaClDefine(" 0f03: Lsl $Gv, $Ew", NACLi_SYSTEM, st, Other);
123 NaClDefine(" 0f04: Invalid", NACLi_INVALID, st, Other);
124 NaClDef_64(" 0f05: Syscall {%rip}, {%rcx}",
125 NACLi_SYSCALL, st, SysCall);
126 NaClDefine(" 0f06: Clts", NACLi_SYSTEM, st, Other);
127 NaClDef_64(" 0f07: Sysret {%rip}, {%rcx}",
128 NACLi_SYSTEM, st, SysRet);
129 NaClDefine(" 0f08: Invd", NACLi_SYSTEM, st, Other);
130 NaClDefine(" 0f09: Wbinvd", NACLi_SYSTEM, st, Other);
131 NaClDefine(" 0f0a: Invalid", NACLi_INVALID, st, Other);
132 /* Note: ud2 with no prefix bytes is currently understood as a NOP sequence.
133 * The definition here only applies to cases where prefix bytes are added.
135 NaClDefine(" 0f0b: Ud2", NACLi_386, st, Other);
136 NaClDefine(" 0f0c: Invalid", NACLi_INVALID, st, Other);
137 NaClDefine(" 0f0d/0: Prefetch_exclusive $Mb",
138 NACLi_3DNOW, st, Other);
139 NaClDefine(" 0f0d/1: Prefetch_modified $Mb",
140 NACLi_3DNOW, st, Other);
141 NaClDefine(" 0f0d/2: Prefetch_reserved $Mb",
142 NACLi_3DNOW, st, Other);
143 NaClDefine(" 0f0d/3: Prefetch_modified $Mb",
144 NACLi_3DNOW, st, Other);
145 NaClDefine(" 0f0d/4: Prefetch_reserved $Mb",
146 NACLi_3DNOW, st, Other);
147 NaClDefine(" 0f0d/5: Prefetch_reserved $Mb",
148 NACLi_3DNOW, st, Other);
149 NaClDefine(" 0f0d/6: Prefetch_reserved $Mb",
150 NACLi_3DNOW, st, Other);
151 NaClDefine(" 0f0d/7: Prefetch_reserved $Mb",
152 NACLi_3DNOW, st, Other);
153 NaClDefine(" 0f0e: Femms", NACLi_3DNOW, st, Other);
154 NaCl3DNow0F0FInsts(st);
155 NaClDefIter(" f20f13+@i: Invalid", 0, 4, NACLi_INVALID, st, Other);
156 NaClDefine(" 0f18/0: Prefetchnta $Mb", NACLi_MMX, st, Other);
157 NaClDefine(" 0f18/1: Prefetcht0 $Mb", NACLi_MMX, st, Other);
158 NaClDefine(" 0f18/2: Prefetcht1 $Mb", NACLi_MMX, st, Other);
159 NaClDefine(" 0f18/3: Prefetcht2 $Mb", NACLi_MMX, st, Other);
160 /* The following 4 are reserved for future prefetch instructions. */
161 NaClDefIter(" 0f18/@i: Invalid", 4, 7, NACLi_INVALID, st, Other);
162 NaClDefine(" 0f1f/0: Nop", NACLi_386, st, Other);
163 NaClDefIter(" 0f19+@i/r: Nop", 0, 6, NACLi_386, st, Other);
164 NaClDefine(" 0f20: Mov $Rd/q, $Cd/q", NACLi_SYSTEM, st, Move);
165 NaClDefine(" 0f21: Mov $Rd/q, $Dd/q", NACLi_SYSTEM, st, Move);
166 NaClDefine(" 0f22: Mov $Cd/q, $Rd/q", NACLi_SYSTEM, st, Move);
167 NaClDefine(" 0f23: Mov $Dd/q, $Rd/q", NACLi_SYSTEM, st, Move);
168 NaClDefIter(" 0f24+@i: Invalid", 0, 3, NACLi_INVALID, st, Other);
169 NaClDefine(" 0f30: Wrmsr {%eax}, {%edx}, {%ecx}",
170 NACLi_RDMSR, st, Uses);
171 NaClDefine(" 0f31: Rdtsc {%eax}, {%edx}",
172 NACLi_RDTSC, st, Sets);
173 NaClDefine(" 0f32: Rdmsr {%eax}, {%edx}, {%ecx}",
174 NACLi_RDMSR, st, O2Move);
175 NaClDefine(" 0f33: Rdpmc {%eax}, {%edx}, {%ecx}",
176 NACLi_SYSTEM, st, O2Move);
177 NaClDefine(" 0f34: Sysenter {%eip}, {%esp}, {%cs}, {%ss}",
178 NACLi_SYSENTER,st, SysJump);
179 NaClDefine(" 0f35: Sysexit {%eip}, {%esp}, {%cs}, {%ss}, "
180 "{%edx}, {%ecx}", NACLi_SYSENTER,st, SysJump);
181 NaClDefIter(" 0f36+@i: Invalid", 0, 9, NACLi_INVALID, st, Other);
182 NaClDefine(" 0f40: Cmovo $Gv, $Ev", NACLi_CMOV, st, Move);
183 NaClDefine(" 0f41: Cmovno $Gv, $Ev", NACLi_CMOV, st, Move);
184 NaClDefine(" 0f42: Cmovb $Gv, $Ev", NACLi_CMOV, st, Move);
185 NaClDefine(" 0f43: Cmovnb $Gv, $Ev", NACLi_CMOV, st, Move);
186 NaClDefine(" 0f44: Cmovz $Gv, $Ev", NACLi_CMOV, st, Move);
187 NaClDefine(" 0f45: Cmovnz $Gv, $Ev", NACLi_CMOV, st, Move);
188 NaClDefine(" 0f46: Cmovbe $Gv, $Ev", NACLi_CMOV, st, Move);
189 NaClDefine(" 0f47: Cmovnbe $Gv, $Ev", NACLi_CMOV, st, Move);
190 NaClDefine(" 0f48: Cmovs $Gv, $Ev", NACLi_CMOV, st, Move);
191 NaClDefine(" 0f49: Cmovns $Gv, $Ev", NACLi_CMOV, st, Move);
192 NaClDefine(" 0f4a: Cmovp $Gv, $Ev", NACLi_CMOV, st, Move);
193 NaClDefine(" 0f4b: Cmovnp $Gv, $Ev", NACLi_CMOV, st, Move);
194 NaClDefine(" 0f4c: Cmovl $Gv, $Ev", NACLi_CMOV, st, Move);
195 NaClDefine(" 0f4d: Cmovnl $Gv, $Ev", NACLi_CMOV, st, Move);
196 NaClDefine(" 0f4e: Cmovle $Gv, $Ev", NACLi_CMOV, st, Move);
197 NaClDefine(" 0f4f: Cmovnle $Gv, $Ev", NACLi_CMOV, st, Move);
198 /* Note: We special case the 66 prefix on direct conditional jumps, by
199 * explicitly disallowing 16-bit direct jumps. This is done partly because
200 * some versions (within x86-64) are not supported in such cases. However,
201 * NaCl also doesn't want to allow 16-bit direct jumps.
203 NaClDefine(" 0f80: Jo {%@ip}, $Jzd", NACLi_386, st, Jump);
204 NaClDefine(" 0f81: Jno {%@ip}, $Jzd", NACLi_386, st, Jump);
205 NaClDefine(" 0f82: Jb {%@ip}, $Jzd", NACLi_386, st, Jump);
206 NaClDefine(" 0f83: Jnb {%@ip}, $Jzd", NACLi_386, st, Jump);
207 NaClDefine(" 0f84: Jz {%@ip}, $Jzd", NACLi_386, st, Jump);
208 NaClDefine(" 0f85: Jnz {%@ip}, $Jzd", NACLi_386, st, Jump);
209 NaClDefine(" 0f86: Jbe {%@ip}, $Jzd", NACLi_386, st, Jump);
210 NaClDefine(" 0f87: Jnbe {%@ip}, $Jzd", NACLi_386, st, Jump);
211 NaClDefine(" 0f88: Js {%@ip}, $Jzd", NACLi_386, st, Jump);
212 NaClDefine(" 0f89: Jns {%@ip}, $Jzd", NACLi_386, st, Jump);
213 NaClDefine(" 0f8a: Jp {%@ip}, $Jzd", NACLi_386, st, Jump);
214 NaClDefine(" 0f8b: Jnp {%@ip}, $Jzd", NACLi_386, st, Jump);
215 NaClDefine(" 0f8c: Jl {%@ip}, $Jzd", NACLi_386, st, Jump);
216 NaClDefine(" 0f8d: Jnl {%@ip}, $Jzd", NACLi_386, st, Jump);
217 NaClDefine(" 0f8e: Jle {%@ip}, $Jzd", NACLi_386, st, Jump);
218 NaClDefine(" 0f8f: Jnle {%@ip}, $Jzd", NACLi_386, st, Jump);
219 NaClDefine(" 0f90: Seto $Eb", NACLi_386, st, Sets);
220 NaClDefine(" 0f91: Setno $Eb", NACLi_386, st, Sets);
221 NaClDefine(" 0f92: Setb $Eb", NACLi_386, st, Sets);
222 NaClDefine(" 0f93: Setnb $Eb", NACLi_386, st, Sets);
223 NaClDefine(" 0f94: Setz $Eb", NACLi_386, st, Sets);
224 NaClDefine(" 0f95: Setnz $Eb", NACLi_386, st, Sets);
225 NaClDefine(" 0f96: Setbe $Eb", NACLi_386, st, Sets);
226 NaClDefine(" 0f97: Setnbe $Eb", NACLi_386, st, Sets);
227 NaClDefine(" 0f98: Sets $Eb", NACLi_386, st, Sets);
228 NaClDefine(" 0f99: Setns $Eb", NACLi_386, st, Sets);
229 NaClDefine(" 0f9a: Setp $Eb", NACLi_386, st, Sets);
230 NaClDefine(" 0f9b: Setnp $Eb", NACLi_386, st, Sets);
231 NaClDefine(" 0f9c: Setl $Eb", NACLi_386, st, Sets);
232 NaClDefine(" 0f9d: Setnl $Eb", NACLi_386, st, Sets);
233 NaClDefine(" 0f9e: Setle $Eb", NACLi_386, st, Sets);
234 NaClDefine(" 0f9f: Setnle $Eb", NACLi_386, st, Sets);
235 NaClDefine(" 0fa0: Push {%@sp}, %fs", NACLi_386, st, Push);
236 NaClDefine(" 0fa1: Pop {%@sp}, %fs", NACLi_386, st, Pop);
237 NaClDefine(" 0fa2: Cpuid {%ebx}, {%edx}, {%eax}, {%ecx}",
238 NACLi_386, st, Cpuid);
239 NaClDefine(" 0fa3: Bt $Ev, $Gv", NACLi_386, st, Compare);
240 NaClDefine(" 0fa4: Shld $Ev, $Gv, $Ib", NACLi_386, st, Binary);
241 NaClDefine(" 0fa5: Shld $Ev, $Gv, %cl", NACLi_386, st, Binary);
242 NaClDefIter(" 0fa6+@i: Invalid", 0, 1, NACLi_INVALID, st, Other);
243 NaClDefine(" 0fa8: Push {%@sp}, %gs", NACLi_386, st, Push);
244 NaClDefine(" 0fa9: Pop {%@sp}, %gs", NACLi_386, st, Pop);
245 NaClDefine(" 0faa: Rsm", NACLi_SYSTEM, st, Other);
246 NaClDefine(" 0fab: Bts $Ev, $Gv", NACLi_386, st, Binary);
247 NaClDefine(" 0fac: Shrd $Ev, $Gv, $Ib", NACLi_386, st, Nary);
248 NaClDefine(" 0fad: Shrd $Ev, $Gv, %cl", NACLi_386, st, Nary);
250 NaClDefine(" 0fae/0: Fxsave $Mf", NACLi_FXSAVE, st, Sets);
251 NaClDefine(" 0fae/1: Fxrstor $Mf", NACLi_FXSAVE, st, Uses);
252 NaClDefine(" 0fae/2: Ldmxcsr $Md", NACLi_SSE, st, Uses);
253 NaClDefine(" 0fae/3: Stmxcsr $Md", NACLi_SSE, st, Sets);
254 NaClDefine(" 0fae/4: Invalid", NACLi_INVALID, st, Other);
255 NaClDefine(" 0fae/5/0: Lfence", NACLi_SSE2, st, Other);
256 NaClDefine(" 0fae/6/0: Mfence", NACLi_SSE2, st, Other);
257 NaClDefine(" 0fae/7/0: Sfence", NACLi_SFENCE_CLFLUSH,
259 NaClDefIter(" 0fae/5/@i: Invalid", 1, 7, NACLi_INVALID, st, Other);
260 NaClDefIter(" 0fae/6/@i: Invalid", 1, 7, NACLi_INVALID, st, Other);
261 NaClDefIter(" 0fae/7/@i: Invalid", 1, 7, NACLi_INVALID, st, Other);
262 NaClDefine(" 0fae/7: Clflush $Mb", NACLi_SFENCE_CLFLUSH,
265 NaClDefine(" f20fae: Invalid", NACLi_INVALID, st, Other);
266 NaClDefine(" 660fae: Invalid", NACLi_INVALID, st, Other);
267 NaClDefine(" 0faf: Imul $Gv, $Ev", NACLi_386, st, Binary);
268 NaClDefine(" 0fb0: Cmpxchg {%al}, $Eb, $Gb",
269 NACLi_386, st, Exchange);
270 NaClDefine(" 0fb1: Cmpxchg {$rAXv}, $Ev, $Gv",
271 NACLi_386, st, Exchange);
272 NaClDefine(" 0fb2: Lss $SGz, $Mp", NACLi_386, st, Lea);
273 NaClDefine(" 0fb3: Btr $Ev, $Gv", NACLi_386, st, Binary);
274 NaClDefine(" 0fb4: Lfs $SGz, $Mp", NACLi_386, st, Lea);
275 NaClDefine(" 0fb5: Lgs $SGz, $Mp", NACLi_386, st, Lea);
276 NaClDefine(" 0fb6: Movzx $Gv, $Eb", NACLi_386, st, Move);
277 NaClDefine(" 0fb7: Movzx $Gv, $Ew", NACLi_386, st, Move);
279 NaClDefine(" 0fb8: Invalid", NACLi_INVALID, st, Other);
280 NaClDefine(" 0fb9/r: Invalid", NACLi_INVALID, st, Other);
281 NaClDefine(" 0fba/4: Bt $Ev, $Ib", NACLi_386, st, Compare);
282 NaClDefine(" 0fba/5: Bts $Ev, $Ib", NACLi_386, st, Binary);
283 NaClDefine(" 0fba/6: Btr $Ev, $Ib", NACLi_386, st, Binary);
284 NaClDefine(" 0fba/7: Btc $Ev, $Ib", NACLi_386, st, Binary);
285 NaClDefine(" 0fba/r: Invalid", NACLi_INVALID, st, Other);
286 NaClDefine(" 0fbb: Btc $Ev, $Gv", NACLi_386, st, Binary);
287 NaClDefine(" 0fbc: Bsf $Gv, $Ev", NACLi_386, st, Move);
288 NaClDefine(" 0fbd: Bsr $Gv, $Ev", NACLi_386, st, Move);
289 NaClDefine(" 0fbe: Movsx $Gv, $Eb", NACLi_386, st, Move);
290 NaClDefine(" 0fbf: Movsx $Gv, $Ew", NACLi_386, st, Move);
291 NaClDefine(" 0fc0: Xadd $Eb, $Gb", NACLi_386, st, Exchange);
292 NaClDefine(" 0fc1: Xadd $Ev, $Gv", NACLi_386, st, Exchange);
293 NaClBegDef(" 0fc7/1: Cmpxchg8b {%edx}, {%eax}, $Mq",
294 NACLi_CMPXCHG8B, st);
295 NaClAddIFlags(NACL_IFLAG(OperandSize_v));
296 NaClEndDef( Exchange);
297 NaClBegD64(" 0fc7/1: Cmpxchg16b {%rdx}, {%eax}, $Mdq",
298 NACLi_CMPXCHG16B, st);
299 NaClAddIFlags(NACL_IFLAG(OperandSize_o));
300 NaClEndDef( Exchange);
301 NaClDefine(" 0fc7/r: Invalid", NACLi_INVALID, st, Other);
302 for (i = 0; i <= 7; ++i) {
303 NaClDefPrefixInstChoices(Prefix0F, 0xc8 + i, 2);
305 NaClDefReg(" 0fc8+@reg: Bswap $r8vd", 0, 7, NACLi_386, st,
307 NaClDefReg(" 0fc8+@reg: Bswap $r8vq", 0, 7, NACLi_386, st,