aaload

Push object from array.

aastore

Store object in array.

aconst_null

Push the null object.

aload

Load object from local variable n

aload_n

Load object from local variable n : n = 0..3

anewarray

New array of objects

areturn

return from method with object

arraylength

Get length of array.

astore

store object in local variable n

astore_n

store object in local variable n : n = 0..3

athrow

throw exception

baload

Push byte or boolean from array.

bastore

Store byte or boolean in array.

bipush

Push a signed byte.

breakpoint

used for debugging

caload

Push char from array.

castore

Store char in array.

checkcast

Checks object type of stack top.

d2f

double to float

d2i

double to integer

d2l

double to long

dadd

Add two doubles.

daload

Push double from array.

dastore

Store double in array.

dcmpg

compare two doubles (1 on NaN)

dcmpl

compare two doubles (-1 on NaN)

dconst_v

Doubles v = 0.0..1.0.

ddiv

Divide two doubles.

dload

Load double from local variable n

dload_n

Load double from local variable n : n = 0..3

dmul

Multiply two doubles.

dneg

Negate a double.

drem

Take remainder of two doubles.

dreturn

return from method with double

dstore

store double in local variable n

dstore_n

store double in local variable n : n = 0..3

dsub

Subtract two doubles.

dup

Duplicate the top word to place 2.

dup2

Duplicate the top two words.

dup2_x1

Duplicate the top two words to places 4 and 5.

dup2_x2

Duplicate the top two words to places 5 and 6.

dup_x1

Duplicate the top word to place 3.

dup_x2

Duplicate the top word to place 4.

f2d

float to double

f2i

float to integer

f2l

float to long

fadd

Add two floats.

faload

Push float from array.

fastore

Store float in array.

fcmpg

compare two floats (1 on NaN)

fcmpl

compare two floats (-1 on NaN)

fconst_v

Floats v = 0.0..2.0.

fdiv

Divide two floats.

fload

Load float from local variable n

fload_n

Load float from local variable n : n = 0..3

fmul

Multiply two floats.

fneg

Negate a float.

frem

Take remainder of two floats.

freturn

return from method with float

fstore

store float in local variable n

fstore_n

store float in local variable n : n = 0..3

fsub

Subtract two floats.

getfield

Push an instance variable.

getstatic

Push a static object's variable.

goto

go to label

goto_w

go to label (wide address)

i2b

integer to byte

i2c

integer to char

i2d

integer to double

i2f

integer to float

i2l

integer to long

i2s

integer to short

iadd

Add two integers.

iaload

Push integer from array.

iand

and two integers

iastore

Store integer in array.

iconst_m1

Push integer -1.

iconst_n

Integers n = 0..5.

idiv

Divide two integers.

if_acmpeq

branch if references are equal

if_acmpne

branch if references are uneqal

if_icmpeq

branch if two ints are equal

if_icmpge

branch if int2 greater than or equal to int1

if_icmpgt

branch if int2 greater than int1

if_icmple

branch if int2 less than or equal to int1

if_icmplt

branch if int2 less than int1

if_icmpne

branch if two ints are not equal

ifeq

branch if equal

ifge

branch if greater than or equal

ifgt

branch if greater than

ifle

branch if less than or equal

iflt

branch if less than

ifne

branch if not equal

ifnonnull

branch if not null

ifnull

branch if null

iinc

Increment local var.

iload

Load integer from local variable n

iload_n

Load integer from local variable n : n = 0..3

imul

Multiply two integers.

ineg

Negate a integer.

instanceof

Checks object's class.

invokeinterface

call interface method

invokespecial

call method in a specific class

invokestatic

call a static method

invokevirtual

call any other method

ior

or two integers

irem

Take remainder of two integers.

ireturn

return from method with integer

ishl

shift integer left

ishr

shift integer right

istore

store integer in local variable n

istore_n

store integer in local variable n : n = 0..3

isub

Subtract two integers.

iushr

shift integer right without regard to sign

ixor

exclusive or two integers

jsr

jump to subroutine

jsr_w

jump to subroutine (wide address)

l2d

long to double

l2f

long to float

l2i

long to integer

ladd

Add two longs.

laload

Push long from array.

land

and two longs

lastore

Store long in array.

lcmp

compare two longs

lconst_v

Longs v = 0..1.

ldc

Push a single word constant.

ldc2_w

Push a double word constant.

ldc_w

Push a single word constant. (16-bit ref in constant pool)

ldiv

Divide two longs.

lload

Load long from local variable n

lload_n

Load long from local variable n : n = 0..3

lmul

Multiply two longs.

lneg

Negate a long.

lookupswitch

case statement equivalent

lor

or two longs

lrem

Take remainder of two longs.

lreturn

return from method with long

lshl

shift long left

lshr

shift long righ

lstore

store long in local variable n

lstore_n

store long in local variable n : n = 0..3

lsub

Subtract two longs.

lushr

shift long right without regard to sign

lxor

exclusive or two longs

monitorenter

begin sychronization

monitorexit

end sychronization

multianewarray

New multidimensional array

new

Allocate mem for object.

newarray

New array of primitive type

nop

Do nothing.

pop

Pop the top word.

pop2

Pop the top two words.

putfield

Store an instance variable.

putstatic

Store a static object's variable.

ret

return from subroutine

return

return from method with nothing

saload

Push short from array.

sastore

Store short in array.

sipush

Push a signed word.

swap

Swap the top two words.

tableswitch

branch by range of values

wide

used for 2-word address or value

back to opcode reference.