1 /*
2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.tools.javac.jvm;
27
28
29 /** Bytecode instruction codes, as well as typecodes used as
30 * instruction modifiers.
31 *
32 * <p><b>This is NOT part of any supported API.
33 * If you write code that depends on this, you do so at your own risk.
34 * This code and its internal interfaces are subject to change or
35 * deletion without notice.</b>
36 */
37 public interface ByteCodes {
38
39 /** Byte code instruction codes.
40 */
41 int illegal = -1,
42 nop = 0,
43 aconst_null = 1,
44 iconst_m1 = 2,
45 iconst_0 = 3,
46 iconst_1 = 4,
47 iconst_2 = 5,
48 iconst_3 = 6,
49 iconst_4 = 7,
50 iconst_5 = 8,
51 lconst_0 = 9,
52 lconst_1 = 10,
53 fconst_0 = 11,
54 fconst_1 = 12,
55 fconst_2 = 13,
56 dconst_0 = 14,
57 dconst_1 = 15,
58 bipush = 16,
59 sipush = 17,
60 ldc1 = 18,
61 ldc2 = 19,
62 ldc2w = 20,
63 iload = 21,
64 lload = 22,
65 fload = 23,
66 dload = 24,
67 aload = 25,
68 iload_0 = 26,
69 iload_1 = 27,
70 iload_2 = 28,
71 iload_3 = 29,
72 lload_0 = 30,
73 lload_1 = 31,
74 lload_2 = 32,
75 lload_3 = 33,
76 fload_0 = 34,
77 fload_1 = 35,
78 fload_2 = 36,
79 fload_3 = 37,
80 dload_0 = 38,
81 dload_1 = 39,
82 dload_2 = 40,
83 dload_3 = 41,
84 aload_0 = 42,
85 aload_1 = 43,
86 aload_2 = 44,
87 aload_3 = 45,
88 iaload = 46,
89 laload = 47,
90 faload = 48,
91 daload = 49,
92 aaload = 50,
93 baload = 51,
94 caload = 52,
95 saload = 53,
96 istore = 54,
97 lstore = 55,
98 fstore = 56,
99 dstore = 57,
100 astore = 58,
101 istore_0 = 59,
102 istore_1 = 60,
103 istore_2 = 61,
104 istore_3 = 62,
105 lstore_0 = 63,
106 lstore_1 = 64,
107 lstore_2 = 65,
108 lstore_3 = 66,
109 fstore_0 = 67,
110 fstore_1 = 68,
111 fstore_2 = 69,
112 fstore_3 = 70,
113 dstore_0 = 71,
114 dstore_1 = 72,
115 dstore_2 = 73,
116 dstore_3 = 74,
117 astore_0 = 75,
118 astore_1 = 76,
119 astore_2 = 77,
120 astore_3 = 78,
121 iastore = 79,
122 lastore = 80,
123 fastore = 81,
124 dastore = 82,
125 aastore = 83,
126 bastore = 84,
127 castore = 85,
128 sastore = 86,
129 pop = 87,
130 pop2 = 88,
131 dup = 89,
132 dup_x1 = 90,
133 dup_x2 = 91,
134 dup2 = 92,
135 dup2_x1 = 93,
136 dup2_x2 = 94,
137 swap = 95,
138 iadd = 96,
139 ladd = 97,
140 fadd = 98,
141 dadd = 99,
142 isub = 100,
143 lsub = 101,
144 fsub = 102,
145 dsub = 103,
146 imul = 104,
147 lmul = 105,
148 fmul = 106,
149 dmul = 107,
150 idiv = 108,
151 ldiv = 109,
152 fdiv = 110,
153 ddiv = 111,
154 imod = 112,
155 lmod = 113,
156 fmod = 114,
157 dmod = 115,
158 ineg = 116,
159 lneg = 117,
160 fneg = 118,
161 dneg = 119,
162 ishl = 120,
163 lshl = 121,
164 ishr = 122,
165 lshr = 123,
166 iushr = 124,
167 lushr = 125,
168 iand = 126,
169 land = 127,
170 ior = 128,
171 lor = 129,
172 ixor = 130,
173 lxor = 131,
174 iinc = 132,
175 i2l = 133,
176 i2f = 134,
177 i2d = 135,
178 l2i = 136,
179 l2f = 137,
180 l2d = 138,
181 f2i = 139,
182 f2l = 140,
183 f2d = 141,
184 d2i = 142,
185 d2l = 143,
186 d2f = 144,
187 int2byte = 145,
188 int2char = 146,
189 int2short = 147,
190 lcmp = 148,
191 fcmpl = 149,
192 fcmpg = 150,
193 dcmpl = 151,
194 dcmpg = 152,
195 ifeq = 153,
196 ifne = 154,
197 iflt = 155,
198 ifge = 156,
199 ifgt = 157,
200 ifle = 158,
201 if_icmpeq = 159,
202 if_icmpne = 160,
203 if_icmplt = 161,
204 if_icmpge = 162,
205 if_icmpgt = 163,
206 if_icmple = 164,
207 if_acmpeq = 165,
208 if_acmpne = 166,
209 goto_ = 167,
210 jsr = 168,
211 ret = 169,
212 tableswitch = 170,
213 lookupswitch = 171,
214 ireturn = 172,
215 lreturn = 173,
216 freturn = 174,
217 dreturn = 175,
218 areturn = 176,
219 return_ = 177,
220 getstatic = 178,
221 putstatic = 179,
222 getfield = 180,
223 putfield = 181,
224 invokevirtual = 182,
225 invokespecial = 183,
226 invokestatic = 184,
227 invokeinterface = 185,
228 invokedynamic = 186,
229 new_ = 187,
230 newarray = 188,
231 anewarray = 189,
232 arraylength = 190,
233 athrow = 191,
234 checkcast = 192,
235 instanceof_ = 193,
236 monitorenter = 194,
237 monitorexit = 195,
238 wide = 196,
239 multianewarray = 197,
240 if_acmp_null = 198,
241 if_acmp_nonnull = 199,
242 goto_w = 200,
243 jsr_w = 201,
244 breakpoint = 202,
245
246 // value-type bytecodes
247 vload = 203,
248 vstore = 204,
249 vaload = 205,
250 vastore = 206,
251 vnew = 207,
252 vreturn = 210,
253
254 vdefault = 214,
255 vwithfield = 215,
256
257 ByteCodeCount = 216;
258
259 /** Virtual instruction codes; used for constant folding.
260 */
261 int string_add = 256, // string +
262 bool_not = 257, // boolean !
263 bool_and = 258, // boolean &&
264 bool_or = 259; // boolean ||
265
266 /** Virtual opcodes; used for shifts with long shiftcount
267 */
268 int ishll = 270, // int shift left with long count
269 lshll = 271, // long shift left with long count
270 ishrl = 272, // int shift right with long count
271 lshrl = 273, // long shift right with long count
272 iushrl = 274, // int unsigned shift right with long count
273 lushrl = 275; // long unsigned shift right with long count
274
275 /** Virtual opcode for null reference checks
276 */
277 int nullchk = 276; // return operand if non-null,
278 // otherwise throw NullPointerException.
279
280 /** Virtual opcode for disallowed operations.
281 */
282 int error = 277;
283
284 /** All conditional jumps come in pairs. To streamline the
285 * treatment of jumps, we also introduce a negation of an
286 * unconditional jump. That opcode happens to be jsr.
287 */
288 int dontgoto = jsr;
289
290 /** Shift and mask constants for shifting prefix instructions.
291 * a pair of instruction codes such as LCMP ; IFEQ is encoded
292 * in Symtab as {@literal (LCMP << preShift) + IFEQ }.
293 */
294 int preShift = 9;
295 int preMask = (1 << preShift) - 1;
296
297 /** Type codes.
298 */
299 int INTcode = 0,
300 LONGcode = 1,
301 FLOATcode = 2,
302 DOUBLEcode = 3,
303 OBJECTcode = 4,
304 BYTEcode = 5,
305 CHARcode = 6,
306 SHORTcode = 7,
307 VOIDcode = 8,
308 TypeCodeCount = 9;
309
310 static final String[] typecodeNames = {
311 "int",
312 "long",
313 "float",
314 "double",
315 "object",
316 "byte",
317 "char",
318 "short",
319 "void",
320 "oops"
321 };
322 }