Package net.sf.rej.java.instruction

Classes that model the java bytecode instructions.

See:
Description

Interface Summary

Widenable

Interface for instructions to signal that the Instruction in question can be "widened".

Class Summary

_aaload	Load reference from array.
_aastore	Store into reference array (..., arrayref, index -> ..., value).
_aconst_null	Push null.
_aload	Load reference from local variable
_aload_0	Load reference from local variable 0.
_aload_1	Load reference from local variable 1.
_aload_2	Load reference from local variable 2.
_aload_3	Load reference from local variable 3.
_anewarray	Create new array of reference.
_anewarray_quick
_areturn	Return reference from method.
_arraylength	Get length of array.
_astore	Store reference into local variable.
_astore_0	Store reference into local variable 0.
_astore_1	Store reference into local variable 1.
_astore_2	Store reference into local variable 2.
_astore_3	Store reference into local variable 3.
_athrow	Throw exception.
_baload	Load byte or boolean from array.
_bastore	Store into byte or boolean array.
_bipush	Push byte.
_breakpoint	(Reserved)breakpoint.
_caload	Load char from array.
_castore	Store into char array.
_checkcast	Check whether object is of given type.
_checkcast_quick	Check whether object is of given type.
_d2f	Convert double to float.
_d2i	Convert double to int.
_d2l	Convert double to long.
_dadd	Add long.
_daload	Load double from array.
_dastore	Store into double array.
_dcmpg	Compare double.
_dcmpl	Compare double.
_dconst_0	Push the double constant 0.0 onto the operand stack.
_dconst_1	Push the double constant 1.0 onto the operand stack.
_ddiv	Divide double.
_dload	Load double from local variable.
_dload_0	Load double from local variable 0.
_dload_1	Load double from local variable 1.
_dload_2	Load double from local variable 2.
_dload_3	Load double from local variable 3.
_dmul	Multiply double.
_dneg	Negate double.
_drem	Remainder double.
_dreturn	Return float from method.
_dstore	Store double into local variable.
_dstore_0	Store double into local variable 0.
_dstore_1	Store double into local variable 1.
_dstore_2	Store double into local variable 2.
_dstore_3	Store double into local variable 3.
_dsub	Subtract double.
_dup	Duplicate top operand stack word.
_dup_x1	Duplicate the top operand stack value and insert two values down.
_dup_x2	Duplicate the top operand stack value and insert two or three values down.
_dup2	Duplicate the top one or two operand stack values.
_dup2_x1	Duplicate the top one or two operand stack values and insert two or three values down.
_dup2_x2	Duplicate the top one or two operand stack values and insert two, three, or four values down.
_f2d	Convert float to double.
_f2i	Convert float to int.
_f2l	Convert float to long.
_fadd	Add float.
_faload	Load float from array.
_fastore	Store into float array.
_fcmpg	Compare float.
_fcmpl	Compare float.
_fconst_0	Push the float constant 0.0 onto the operand stack.
_fconst_1	Push the float constant 1.0 onto the operand stack.
_fconst_2	Push the float constant 2.0 onto the operand stack.
_fdiv	Divide float.
_fload	Load float from local variable.
_fload_0	Load float from local variable 0.
_fload_1	Load float from local variable 1.
_fload_2	Load float from local variable 2.
_fload_3	Load float from local variable 3.
_fmul	Multiply float.
_fneg	Negate float.
_frem	Remainder float.
_freturn	Return float from method.
_fstore	Store float into local variable.
_fstore_0	Store float into local variable 0.
_fstore_1	Store float into local variable 1.
_fstore_2	Store float into local variable 2.
_fstore_3	Store float into local variable 3.
_fsub	Subtract float.
_getfield	Fetch field from object.
_getfield_quick
_getfield_quick_w
_getfield2_quick
_getstatic	Get static field from class.
_getstatic_quick	Get static field from class.
_getstatic2_quick
_goto	Branch always.
_goto_w	Branch always(wide index).
_i2b	Convert int to byte.
_i2c	Convert int to char.
_i2d	Convert int to double.
_i2f	Convert int to float.
_i2l	Convert int to long.
_i2s	Convert int to short.
_iadd	Add int.
_iaload	Load int from array.
_iand	Boolean AND int.
_iastore	Store into int array.
_iconst_0	Push int constant 0.
_iconst_1	Push int constant 1.
_iconst_2	Push int constant 2.
_iconst_3	Push int constant 3.
_iconst_4	Push int constant 4.
_iconst_5	Push int constant 5.
_iconst_m1	Push int constant -1.
_idiv	Divide int.
_if_acmpeq	Branch if reference comparison(equals) succeeds.
_if_acmpne	Branch if reference comparison(not equals) succeeds.
_if_icmpeq	Branch if int comparison(equals) succeeds.
_if_icmpge	Branch if int comparison(greater than or equal) succeeds.
_if_icmpgt	Branch if int comparison(greater than) succeeds.
_if_icmple	Branch if int comparison(lower than or equal) succeeds.
_if_icmplt	Branch if int comparison(lower than) succeeds.
_if_icmpne	Branch if int comparison(not equals) succeeds.
_ifeq	Branch if int comparison with zero succeeds(if int is zero).
_ifge	Branch if int comparison with zero succeeds(if int is greater than or equal to zero).
_ifgt	Branch if int comparison with zero succeeds(if int is greater than zero).
_ifle	Branch if int comparison with zero succeeds(if int is lower than or equal to zero).
_iflt	Branch if int comparison with zero succeeds(if int is lower than zero).
_ifne	Branch if int comparison with zero succeeds(if int is not zero).
_ifnonnull	Branch if reference not null.
_ifnull	Branch if reference is null.
_iinc	Increment local variable by constant.
_iload	Load int from local variable.
_iload_0	Load int from local variable 0.
_iload_1	Load int from local variable 1.
_iload_2	Load int from local variable 2.
_iload_3	Load int from local variable 3.
_impdep1	(Reserved) impdep1.
_impdep2	(Reserved) impdp2.
_imul	Multiply int.
_ineg	Negate int.
_instanceof	Determine if object is of given type.
_instanceof_quick
_invokeinterface	Invoke interface method.
_invokeinterface_quick
_invokenonvirtual_quick
_invokespecial	Invoke instance method; special handling for superclass, private, and instance initialization method invocations.
_invokestatic	Invoke a class (static) method.
_invokestatic_quick
_invokesuper_quick
_invokevirtual	Invoke instance method.
_invokevirtual_quick
_invokevirtual_quick_w
_invokevirtualobject_quick
_ior	Boolean OR int.
_irem	Remainder int.
_ireturn	Return int from method.
_ishl	Shift left int.
_ishr	Arithmetic shift right int.
_istore	Store int into local variable.
_istore_0	Store int into local variable 0.
_istore_1	Store int into local variable 1.
_istore_2	Store int into local variable 2.
_istore_3	Store int into local variable 3.
_isub	Subtract int.
_iushr	Logical shift right int.
_ixor	Boolean XOR int.
_jsr	Jump subroutine.
_jsr_w	Jump subroutine(wide index).
_l2d	Convert long to double.
_l2f	Convert long to float.
_l2i	Convert long to int.
_ladd	Add long.
_laload	Load long from array.
_land	Boolean AND long.
_lastore	Store into long array.
_lcmp	Compare long.
_lconst_0	Push the long constant 0 onto the operand stack.
_lconst_1	Push the long constant 1 onto the operand stack.
_ldc	Push item from constant pool.
_ldc_quick
_ldc_w	Push item from constant pool.
_ldc_w_quick
_ldc2_w	Push long or double from constant pool.
_ldc2_w_quick	Push long or double from constant pool.
_ldiv	Divide long.
_lload	Load long from local variable.
_lload_0	Load long from local variable 0.
_lload_1	Load long from local variable 1.
_lload_2	Load long from local variable 2.
_lload_3	Load long from local variable 3.
_lmul	Multiply long.
_lneg	Negate long.
_lookupswitch	Access jump table by key match and jump.
_lor	Boolean OR long.
_lrem	Remainder long.
_lreturn	Return long from method.
_lshl	Shift left.
_lshr	Arithmetic shift right long.
_lstore	Store long into local variable.
_lstore_0	Store long into local variable 0.
_lstore_1	Store long into local variable 1.
_lstore_2	Store long into local variable 2.
_lstore_3	Store long into local variable 3.
_lsub	Subtract long.
_lushr	Logical shift right long.
_lxor	Boolean XOR long.
_monitorenter	Enter monitor for object.
_monitorexit	Exit monitor for object.
_multianewarray	Create new multidimensional array.
_multianewarray_quick
_new	Create new object.
_new_quick
_newarray	Create new array.
_nop	Do nothing.
_pop	Pop top operand stack word.
_pop2	Pop top two operand stack words.
_putfield	Set field in object.
_putfield_quick
_putfield_quick_w
_putfield2_quick
_putstatic	Set static field in class.
_putstatic_quick
_putstatic2_quick
_ret	Return from subroutine.
_return	Return void from method.
_saload	Load short from array.
_sastore	Store into short array.
_sipush	Push short.
_swap	Swap top two operand stack words.
_tableswitch	Access jump table by index and jump.
_wide	The first form of the wide instruction modifies one of the instructions iload, fload, aload, lload, dload, istore, fstore, astore, lstore, dstore, or ret.
_xxxunusedxxx	Undefined instruction 0xBA.
DecompilationContext	DecompilationContext is a context class used by instruction instances to obtain information about the context they appear in.
ExecutionContext	ExecutionContext - For possible future considerations :)
Instruction	This class represents a java bytecode instruction.
Label	The concept "label" does not exist in the java bytecode.
Parameters
StackElement	A class that models a stack elements / operands that is pushed onto or popped from the stack.

Enum Summary

ParameterType
StackElementType	An enumeration which identifies the type of a stack element.

Package net.sf.rej.java.instruction Description

Classes that model the java bytecode instructions. The classes fail to comply with the java naming conventions, but since many instruction names (new, return, goto, ...) clash with java keywords a decision was made to start the names of the instruction classes with an underscore.