1 /*
2 * Copyright (c) 2009, 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.classfile;
27
28 import static com.sun.tools.classfile.Instruction.Kind.*;
29 import static com.sun.tools.classfile.Opcode.Set.*;
30
31 /**
32 * See JVMS, chapter 6.
33 *
34 * <p>In addition to providing all the standard opcodes defined in JVMS,
35 * this class also provides legacy support for the PicoJava extensions.
36 *
37 * <p><b>This is NOT part of any supported API.
38 * If you write code that depends on this, you do so at your own risk.
39 * This code and its internal interfaces are subject to change or
40 * deletion without notice.</b>
41 */
42 public enum Opcode {
43 NOP(0x0),
44 ACONST_NULL(0x1),
45 ICONST_M1(0x2),
46 ICONST_0(0x3),
47 ICONST_1(0x4),
48 ICONST_2(0x5),
49 ICONST_3(0x6),
50 ICONST_4(0x7),
51 ICONST_5(0x8),
52 LCONST_0(0x9),
53 LCONST_1(0xa),
54 FCONST_0(0xb),
55 FCONST_1(0xc),
56 FCONST_2(0xd),
57 DCONST_0(0xe),
58 DCONST_1(0xf),
59 BIPUSH(0x10, BYTE),
60 SIPUSH(0x11, SHORT),
61 LDC(0x12, CPREF),
62 LDC_W(0x13, CPREF_W),
63 LDC2_W(0x14, CPREF_W),
64 ILOAD(0x15, LOCAL),
65 LLOAD(0x16, LOCAL),
66 FLOAD(0x17, LOCAL),
67 DLOAD(0x18, LOCAL),
68 ALOAD(0x19, LOCAL),
69 ILOAD_0(0x1a),
70 ILOAD_1(0x1b),
71 ILOAD_2(0x1c),
72 ILOAD_3(0x1d),
73 LLOAD_0(0x1e),
74 LLOAD_1(0x1f),
75 LLOAD_2(0x20),
76 LLOAD_3(0x21),
77 FLOAD_0(0x22),
78 FLOAD_1(0x23),
79 FLOAD_2(0x24),
80 FLOAD_3(0x25),
81 DLOAD_0(0x26),
82 DLOAD_1(0x27),
83 DLOAD_2(0x28),
84 DLOAD_3(0x29),
85 ALOAD_0(0x2a),
86 ALOAD_1(0x2b),
87 ALOAD_2(0x2c),
88 ALOAD_3(0x2d),
89 IALOAD(0x2e),
90 LALOAD(0x2f),
91 FALOAD(0x30),
92 DALOAD(0x31),
93 AALOAD(0x32),
94 BALOAD(0x33),
95 CALOAD(0x34),
96 SALOAD(0x35),
97 ISTORE(0x36, LOCAL),
98 LSTORE(0x37, LOCAL),
99 FSTORE(0x38, LOCAL),
100 DSTORE(0x39, LOCAL),
101 ASTORE(0x3a, LOCAL),
102 ISTORE_0(0x3b),
103 ISTORE_1(0x3c),
104 ISTORE_2(0x3d),
105 ISTORE_3(0x3e),
106 LSTORE_0(0x3f),
107 LSTORE_1(0x40),
108 LSTORE_2(0x41),
109 LSTORE_3(0x42),
110 FSTORE_0(0x43),
111 FSTORE_1(0x44),
112 FSTORE_2(0x45),
113 FSTORE_3(0x46),
114 DSTORE_0(0x47),
115 DSTORE_1(0x48),
116 DSTORE_2(0x49),
117 DSTORE_3(0x4a),
118 ASTORE_0(0x4b),
119 ASTORE_1(0x4c),
120 ASTORE_2(0x4d),
121 ASTORE_3(0x4e),
122 IASTORE(0x4f),
123 LASTORE(0x50),
124 FASTORE(0x51),
125 DASTORE(0x52),
126 AASTORE(0x53),
127 BASTORE(0x54),
128 CASTORE(0x55),
129 SASTORE(0x56),
130 POP(0x57),
131 POP2(0x58),
132 DUP(0x59),
133 DUP_X1(0x5a),
134 DUP_X2(0x5b),
135 DUP2(0x5c),
136 DUP2_X1(0x5d),
137 DUP2_X2(0x5e),
138 SWAP(0x5f),
139 IADD(0x60),
140 LADD(0x61),
141 FADD(0x62),
142 DADD(0x63),
143 ISUB(0x64),
144 LSUB(0x65),
145 FSUB(0x66),
146 DSUB(0x67),
147 IMUL(0x68),
148 LMUL(0x69),
149 FMUL(0x6a),
150 DMUL(0x6b),
151 IDIV(0x6c),
152 LDIV(0x6d),
153 FDIV(0x6e),
154 DDIV(0x6f),
155 IREM(0x70),
156 LREM(0x71),
157 FREM(0x72),
158 DREM(0x73),
159 INEG(0x74),
160 LNEG(0x75),
161 FNEG(0x76),
162 DNEG(0x77),
163 ISHL(0x78),
164 LSHL(0x79),
165 ISHR(0x7a),
166 LSHR(0x7b),
167 IUSHR(0x7c),
168 LUSHR(0x7d),
169 IAND(0x7e),
170 LAND(0x7f),
171 IOR(0x80),
172 LOR(0x81),
173 IXOR(0x82),
174 LXOR(0x83),
175 IINC(0x84, LOCAL_BYTE),
176 I2L(0x85),
177 I2F(0x86),
178 I2D(0x87),
179 L2I(0x88),
180 L2F(0x89),
181 L2D(0x8a),
182 F2I(0x8b),
183 F2L(0x8c),
184 F2D(0x8d),
185 D2I(0x8e),
186 D2L(0x8f),
187 D2F(0x90),
188 I2B(0x91),
189 I2C(0x92),
190 I2S(0x93),
191 LCMP(0x94),
192 FCMPL(0x95),
193 FCMPG(0x96),
194 DCMPL(0x97),
195 DCMPG(0x98),
196 IFEQ(0x99, BRANCH),
197 IFNE(0x9a, BRANCH),
198 IFLT(0x9b, BRANCH),
199 IFGE(0x9c, BRANCH),
200 IFGT(0x9d, BRANCH),
201 IFLE(0x9e, BRANCH),
202 IF_ICMPEQ(0x9f, BRANCH),
203 IF_ICMPNE(0xa0, BRANCH),
204 IF_ICMPLT(0xa1, BRANCH),
205 IF_ICMPGE(0xa2, BRANCH),
206 IF_ICMPGT(0xa3, BRANCH),
207 IF_ICMPLE(0xa4, BRANCH),
208 IF_ACMPEQ(0xa5, BRANCH),
209 IF_ACMPNE(0xa6, BRANCH),
210 GOTO(0xa7, BRANCH),
211 JSR(0xa8, BRANCH),
212 RET(0xa9, LOCAL),
213 TABLESWITCH(0xaa, DYNAMIC),
214 LOOKUPSWITCH(0xab, DYNAMIC),
215 IRETURN(0xac),
216 LRETURN(0xad),
217 FRETURN(0xae),
218 DRETURN(0xaf),
219 ARETURN(0xb0),
220 RETURN(0xb1),
221 GETSTATIC(0xb2, CPREF_W),
222 PUTSTATIC(0xb3, CPREF_W),
223 GETFIELD(0xb4, CPREF_W),
224 PUTFIELD(0xb5, CPREF_W),
225 INVOKEVIRTUAL(0xb6, CPREF_W),
226 INVOKESPECIAL(0xb7, CPREF_W),
227 INVOKESTATIC(0xb8, CPREF_W),
228 INVOKEINTERFACE(0xb9, CPREF_W_UBYTE_ZERO),
229 INVOKEDYNAMIC(0xba, CPREF_W_UBYTE_ZERO),
230 NEW(0xbb, CPREF_W),
231 NEWARRAY(0xbc, ATYPE),
232 ANEWARRAY(0xbd, CPREF_W),
233 ARRAYLENGTH(0xbe),
234 ATHROW(0xbf),
235 CHECKCAST(0xc0, CPREF_W),
236 INSTANCEOF(0xc1, CPREF_W),
237 MONITORENTER(0xc2),
238 MONITOREXIT(0xc3),
239 // wide 0xc4
240 MULTIANEWARRAY(0xc5, CPREF_W_UBYTE),
241 IFNULL(0xc6, BRANCH),
242 IFNONNULL(0xc7, BRANCH),
243 GOTO_W(0xc8, BRANCH_W),
244 JSR_W(0xc9, BRANCH_W),
245
246 ACONST_INIT(203, CPREF_W),
247 WITHFIELD(204, CPREF_W),
248
249 // impdep 0xfe: PicoJava nonpriv
250 // impdep 0xff: Picojava priv
251
252 // wide opcodes
253 ILOAD_W(0xc415, WIDE_LOCAL),
254 LLOAD_W(0xc416, WIDE_LOCAL),
255 FLOAD_W(0xc417, WIDE_LOCAL),
256 DLOAD_W(0xc418, WIDE_LOCAL),
257 ALOAD_W(0xc419, WIDE_LOCAL),
258 ISTORE_W(0xc436, WIDE_LOCAL),
259 LSTORE_W(0xc437, WIDE_LOCAL),
260 FSTORE_W(0xc438, WIDE_LOCAL),
261 DSTORE_W(0xc439, WIDE_LOCAL),
262 ASTORE_W(0xc43a, WIDE_LOCAL),
263 IINC_W(0xc484, WIDE_LOCAL_SHORT),
264 RET_W(0xc4a9, WIDE_LOCAL),
265
266 // PicoJava nonpriv instructions
267 LOAD_UBYTE(PICOJAVA, 0xfe00),
268 LOAD_BYTE(PICOJAVA, 0xfe01),
269 LOAD_CHAR(PICOJAVA, 0xfe02),
270 LOAD_SHORT(PICOJAVA, 0xfe03),
271 LOAD_WORD(PICOJAVA, 0xfe04),
272 RET_FROM_SUB(PICOJAVA, 0xfe05),
273 LOAD_CHAR_OE(PICOJAVA, 0xfe0a),
274 LOAD_SHORT_OE(PICOJAVA, 0xfe0b),
275 LOAD_WORD_OE(PICOJAVA, 0xfe0c),
276 NCLOAD_UBYTE(PICOJAVA, 0xfe10),
277 NCLOAD_BYTE(PICOJAVA, 0xfe11),
278 NCLOAD_CHAR(PICOJAVA, 0xfe12),
279 NCLOAD_SHORT(PICOJAVA, 0xfe13),
280 NCLOAD_WORD(PICOJAVA, 0xfe14),
281 NCLOAD_CHAR_OE(PICOJAVA, 0xfe1a),
282 NCLOAD_SHORT_OE(PICOJAVA, 0xfe1b),
283 NCLOAD_WORD_OE(PICOJAVA, 0xfe1c),
284 CACHE_FLUSH(PICOJAVA, 0xfe1e),
285 STORE_BYTE(PICOJAVA, 0xfe20),
286 STORE_SHORT(PICOJAVA, 0xfe22),
287 STORE_WORD(PICOJAVA, 0xfe24),
288 STORE_SHORT_OE(PICOJAVA, 0xfe2a),
289 STORE_WORD_OE(PICOJAVA, 0xfe2c),
290 NCSTORE_BYTE(PICOJAVA, 0xfe30),
291 NCSTORE_SHORT(PICOJAVA, 0xfe32),
292 NCSTORE_WORD(PICOJAVA, 0xfe34),
293 NCSTORE_SHORT_OE(PICOJAVA, 0xfe3a),
294 NCSTORE_WORD_OE(PICOJAVA, 0xfe3c),
295 ZERO_LINE(PICOJAVA, 0xfe3e),
296 ENTER_SYNC_METHOD(PICOJAVA, 0xfe3f),
297
298 // PicoJava priv instructions
299 PRIV_LOAD_UBYTE(PICOJAVA, 0xff00),
300 PRIV_LOAD_BYTE(PICOJAVA, 0xff01),
301 PRIV_LOAD_CHAR(PICOJAVA, 0xff02),
302 PRIV_LOAD_SHORT(PICOJAVA, 0xff03),
303 PRIV_LOAD_WORD(PICOJAVA, 0xff04),
304 PRIV_RET_FROM_TRAP(PICOJAVA, 0xff05),
305 PRIV_READ_DCACHE_TAG(PICOJAVA, 0xff06),
306 PRIV_READ_DCACHE_DATA(PICOJAVA, 0xff07),
307 PRIV_LOAD_CHAR_OE(PICOJAVA, 0xff0a),
308 PRIV_LOAD_SHORT_OE(PICOJAVA, 0xff0b),
309 PRIV_LOAD_WORD_OE(PICOJAVA, 0xff0c),
310 PRIV_READ_ICACHE_TAG(PICOJAVA, 0xff0e),
311 PRIV_READ_ICACHE_DATA(PICOJAVA, 0xff0f),
312 PRIV_NCLOAD_UBYTE(PICOJAVA, 0xff10),
313 PRIV_NCLOAD_BYTE(PICOJAVA, 0xff11),
314 PRIV_NCLOAD_CHAR(PICOJAVA, 0xff12),
315 PRIV_NCLOAD_SHORT(PICOJAVA, 0xff13),
316 PRIV_NCLOAD_WORD(PICOJAVA, 0xff14),
317 PRIV_POWERDOWN(PICOJAVA, 0xff16),
318 PRIV_READ_SCACHE_DATA(PICOJAVA, 0xff17),
319 PRIV_NCLOAD_CHAR_OE(PICOJAVA, 0xff1a),
320 PRIV_NCLOAD_SHORT_OE(PICOJAVA, 0xff1b),
321 PRIV_NCLOAD_WORD_OE(PICOJAVA, 0xff1c),
322 PRIV_CACHE_FLUSH(PICOJAVA, 0xff1e),
323 PRIV_CACHE_INDEX_FLUSH(PICOJAVA, 0xff1f),
324 PRIV_STORE_BYTE(PICOJAVA, 0xff20),
325 PRIV_STORE_SHORT(PICOJAVA, 0xff22),
326 PRIV_STORE_WORD(PICOJAVA, 0xff24),
327 PRIV_WRITE_DCACHE_TAG(PICOJAVA, 0xff26),
328 PRIV_WRITE_DCACHE_DATA(PICOJAVA, 0xff27),
329 PRIV_STORE_SHORT_OE(PICOJAVA, 0xff2a),
330 PRIV_STORE_WORD_OE(PICOJAVA, 0xff2c),
331 PRIV_WRITE_ICACHE_TAG(PICOJAVA, 0xff2e),
332 PRIV_WRITE_ICACHE_DATA(PICOJAVA, 0xff2f),
333 PRIV_NCSTORE_BYTE(PICOJAVA, 0xff30),
334 PRIV_NCSTORE_SHORT(PICOJAVA, 0xff32),
335 PRIV_NCSTORE_WORD(PICOJAVA, 0xff34),
336 PRIV_RESET(PICOJAVA, 0xff36),
337 PRIV_WRITE_SCACHE_DATA(PICOJAVA, 0xff37),
338 PRIV_NCSTORE_SHORT_OE(PICOJAVA, 0xff3a),
339 PRIV_NCSTORE_WORD_OE(PICOJAVA, 0xff3c),
340 PRIV_ZERO_LINE(PICOJAVA, 0xff3e),
341 PRIV_READ_REG_0(PICOJAVA, 0xff40),
342 PRIV_READ_REG_1(PICOJAVA, 0xff41),
343 PRIV_READ_REG_2(PICOJAVA, 0xff42),
344 PRIV_READ_REG_3(PICOJAVA, 0xff43),
345 PRIV_READ_REG_4(PICOJAVA, 0xff44),
346 PRIV_READ_REG_5(PICOJAVA, 0xff45),
347 PRIV_READ_REG_6(PICOJAVA, 0xff46),
348 PRIV_READ_REG_7(PICOJAVA, 0xff47),
349 PRIV_READ_REG_8(PICOJAVA, 0xff48),
350 PRIV_READ_REG_9(PICOJAVA, 0xff49),
351 PRIV_READ_REG_10(PICOJAVA, 0xff4a),
352 PRIV_READ_REG_11(PICOJAVA, 0xff4b),
353 PRIV_READ_REG_12(PICOJAVA, 0xff4c),
354 PRIV_READ_REG_13(PICOJAVA, 0xff4d),
355 PRIV_READ_REG_14(PICOJAVA, 0xff4e),
356 PRIV_READ_REG_15(PICOJAVA, 0xff4f),
357 PRIV_READ_REG_16(PICOJAVA, 0xff50),
358 PRIV_READ_REG_17(PICOJAVA, 0xff51),
359 PRIV_READ_REG_18(PICOJAVA, 0xff52),
360 PRIV_READ_REG_19(PICOJAVA, 0xff53),
361 PRIV_READ_REG_20(PICOJAVA, 0xff54),
362 PRIV_READ_REG_21(PICOJAVA, 0xff55),
363 PRIV_READ_REG_22(PICOJAVA, 0xff56),
364 PRIV_READ_REG_23(PICOJAVA, 0xff57),
365 PRIV_READ_REG_24(PICOJAVA, 0xff58),
366 PRIV_READ_REG_25(PICOJAVA, 0xff59),
367 PRIV_READ_REG_26(PICOJAVA, 0xff5a),
368 PRIV_READ_REG_27(PICOJAVA, 0xff5b),
369 PRIV_READ_REG_28(PICOJAVA, 0xff5c),
370 PRIV_READ_REG_29(PICOJAVA, 0xff5d),
371 PRIV_READ_REG_30(PICOJAVA, 0xff5e),
372 PRIV_READ_REG_31(PICOJAVA, 0xff5f),
373 PRIV_WRITE_REG_0(PICOJAVA, 0xff60),
374 PRIV_WRITE_REG_1(PICOJAVA, 0xff61),
375 PRIV_WRITE_REG_2(PICOJAVA, 0xff62),
376 PRIV_WRITE_REG_3(PICOJAVA, 0xff63),
377 PRIV_WRITE_REG_4(PICOJAVA, 0xff64),
378 PRIV_WRITE_REG_5(PICOJAVA, 0xff65),
379 PRIV_WRITE_REG_6(PICOJAVA, 0xff66),
380 PRIV_WRITE_REG_7(PICOJAVA, 0xff67),
381 PRIV_WRITE_REG_8(PICOJAVA, 0xff68),
382 PRIV_WRITE_REG_9(PICOJAVA, 0xff69),
383 PRIV_WRITE_REG_10(PICOJAVA, 0xff6a),
384 PRIV_WRITE_REG_11(PICOJAVA, 0xff6b),
385 PRIV_WRITE_REG_12(PICOJAVA, 0xff6c),
386 PRIV_WRITE_REG_13(PICOJAVA, 0xff6d),
387 PRIV_WRITE_REG_14(PICOJAVA, 0xff6e),
388 PRIV_WRITE_REG_15(PICOJAVA, 0xff6f),
389 PRIV_WRITE_REG_16(PICOJAVA, 0xff70),
390 PRIV_WRITE_REG_17(PICOJAVA, 0xff71),
391 PRIV_WRITE_REG_18(PICOJAVA, 0xff72),
392 PRIV_WRITE_REG_19(PICOJAVA, 0xff73),
393 PRIV_WRITE_REG_20(PICOJAVA, 0xff74),
394 PRIV_WRITE_REG_21(PICOJAVA, 0xff75),
395 PRIV_WRITE_REG_22(PICOJAVA, 0xff76),
396 PRIV_WRITE_REG_23(PICOJAVA, 0xff77),
397 PRIV_WRITE_REG_24(PICOJAVA, 0xff78),
398 PRIV_WRITE_REG_25(PICOJAVA, 0xff79),
399 PRIV_WRITE_REG_26(PICOJAVA, 0xff7a),
400 PRIV_WRITE_REG_27(PICOJAVA, 0xff7b),
401 PRIV_WRITE_REG_28(PICOJAVA, 0xff7c),
402 PRIV_WRITE_REG_29(PICOJAVA, 0xff7d),
403 PRIV_WRITE_REG_30(PICOJAVA, 0xff7e),
404 PRIV_WRITE_REG_31(PICOJAVA, 0xff7f);
405
406 Opcode(int opcode) {
407 this(STANDARD, opcode, NO_OPERANDS);
408 }
409
410 Opcode(int opcode, Instruction.Kind kind) {
411 this(STANDARD, opcode, kind);
412 }
413
414 Opcode(Set set, int opcode) {
415 this(set, opcode, (set == STANDARD ? NO_OPERANDS : WIDE_NO_OPERANDS));
416 }
417
418 Opcode(Set set, int opcode, Instruction.Kind kind) {
419 this.set = set;
420 this.opcode = opcode;
421 this.kind = kind;
422 }
423
424 public final Set set;
425 public final int opcode;
426 public final Instruction.Kind kind;
427
428 /** Get the Opcode for a simple standard 1-byte opcode. */
429 public static Opcode get(int opcode) {
430 return stdOpcodes[opcode];
431 }
432
433 /** Get the Opcode for 1- or 2-byte opcode. */
434 public static Opcode get(int opcodePrefix, int opcode) {
435 Opcode[] block = getOpcodeBlock(opcodePrefix);
436 return (block == null ? null : block[opcode]);
437 }
438
439 private static Opcode[] getOpcodeBlock(int opcodePrefix) {
440 switch (opcodePrefix) {
441 case 0:
442 return stdOpcodes;
443 case WIDE:
444 return wideOpcodes;
445 case NONPRIV:
446 return nonPrivOpcodes;
447 case PRIV:
448 return privOpcodes;
449 default:
450 return null;
451 }
452
453 }
454
455 private static final Opcode[] stdOpcodes = new Opcode[256];
456 private static final Opcode[] wideOpcodes = new Opcode[256];
457 private static final Opcode[] nonPrivOpcodes = new Opcode[256];
458 private static final Opcode[] privOpcodes = new Opcode[256];
459 static {
460 for (Opcode o: values())
461 getOpcodeBlock(o.opcode >> 8)[o.opcode & 0xff] = o;
462 }
463
464 /** The byte prefix for the wide instructions. */
465 public static final int WIDE = 0xc4;
466 /** The byte prefix for the PicoJava nonpriv instructions. */
467 public static final int NONPRIV = 0xfe;
468 /** The byte prefix for the PicoJava priv instructions. */
469 public static final int PRIV = 0xff;
470
471 public enum Set {
472 /** Standard opcodes. */
473 STANDARD,
474 /** Legacy support for PicoJava opcodes. */
475 PICOJAVA }
476 }
--- EOF ---