|
Type
|
Range
|
Description
|
|
boolean
|
{0,1}
|
Z
|
|
byte
|
-27 to 27 -1, inclusive
|
B
|
|
short
|
-215 to 215-1, inclusive
|
S
|
|
int
|
-231 to 231-1, inclusive
|
I
|
|
long
|
-263 to 263-1, inclusive
|
L
|
|
char
|
16 bit unsigned Unicode (0 to 216 -1)
|
C
|
|
float
|
32-bit IEEE 754 single-precision float
|
F
|
|
double
|
64-bit IEEE 754 double-precision float
|
D
|
|
returnAddress
|
address of an opcode within the same method
|
|
|
class reference
|
Lclass-name;
|
|
|
interface reference
|
Linter-name
|
|
|
array reference
|
[[..[component type]
|
|
|
void
|
V
|
|
|
i2l, i2f, i2d, l2f, l2d, and f2d
|
|
Only i2f is used in MP compiler
|
|
dup, pop,dup2, pop2, swap
|
|
Create a new class instance
|
new
|
|
Create a new array
|
newarray, anewarray, multianewarray
|
|
Access field of classes ( staticfield/class variables) and field of class instanes (non-static fields, known as instance variables)
|
getfield, putfield, getstatic, putstatic
|
|
Load an array component onto the operand stack
|
<T>aload
|
|
Store a value from the operand stack as an array component
|
<T>astore
|
|
Arithmetic Instructions
|
|
Load and store instructions
|
|
Control transfer instructions
|
|
Type conversion instructions
|
|
Operand stack management instructions
|
|
Object creation and manipulation
|
|
Method invocation instructions
|
|
Throwing instructions (not used)
|
|
Implemeneting finally (not used)
|
|
Synchoronisation (not used)
|
|
Load a loadcal variable onto the operand stack
|
Store a value from the operand stack into a local variable
|
|
<T>aload -> T:b,s,i,l,f,d,c,a
|
<T>astore -> T: b,s,i,l,f,d,c,a
|
|
Value
|
|
|
bipush
|
int const, -27 to 27-1
|
|
sipush
|
int const, -215 to 215-1
|
|
ldc
|
int, float, quote string const
|
|
ldc_w
|
long,double const
|
|
ldc2_w
|
long, double const
|
|
aconst_null
|
null
|
|
iconst_m1
|
-1
|
|
iconst_<i>
|
0,...,5
|
|
lconst_<l>
|
0,1
|
|
fconst_<f>
|
0.0, 1.0 and 2.0
|
|
dconst_<d>
|
0.0, 1.0
|
|
invokestatic
|
|
invokevitual
|
|
invokespecial
|
|
invokeinterface <method-spec> <num-args>
|
|
Add
|
iadd, ladd, fadd, dadd
|
|
Subtract
|
isub, lsub, fsub, dsub
|
|
Multiply
|
imul, lmul, fmul, dmul
|
|
Divide
|
idiv, ldiv, fdiv, ddiv
|
|
Remainder
|
irem, lrem, frem, drem
|
|
Shift
|
ishl, ishr, iushr, lshl, lshr, lushr
|
|
Bitwise OR
|
ior, lor
|
|
Bitwise AND
|
iand, land
|
|
Bitwise exclusive OR
|
ixor, lxor
|
|
Local variable increment
|
iinc
|
|
Comparision
|
dcmpg, dcmpl, fcmpg, fcmpl, Icmp.
|
|
Unconditional branch
|
goto, goto_w, jsr, jsr_w, ret
|
|
|
Conditional branch
|
ifeq, iflt, ifle, ifne, ifgt, ifge
|
compare an int to zero
|
|
ifnull, ifnonnull
|
compare a ref to null
|
|
|
if_icmpeq, if_icmpne, if_icmplt, if_icmpgt, if_icmple,if_icmpge
|
compare two integers
|
|
|
if_acmpeq_ if_acmpne
|
compare two references
|
|
|
Compund conditional branch
|
tableswitch, lookupswitch
|
|
|
.source <source.java>
|
|
.class < the current class>
|
|
.super < the super class>
|
|
.limit
|
|
.method < the method description>
|
|
.field <the field description>
|
|
.end
|
|
.var < the variable description>
|
|
.line < the line number in source code>
|
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