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