com.android.dx.dex.code

Class HighRegisterPrefix

java.lang.Object

com.android.dx.dex.code.DalvInsn

com.android.dx.dex.code.VariableSizeInsn

com.android.dx.dex.code.HighRegisterPrefix

public final class HighRegisterPrefix
extends VariableSizeInsn

Combination instruction which turns into a variable number of move* instructions to move a set of registers into registers starting at 0 sequentially. This is used in translating an instruction whose register requirements cannot be met using a straightforward choice of a single opcode.

Constructor Summary

Constructors

Constructor and Description
HighRegisterPrefix(SourcePosition position, RegisterSpecList registers) Constructs an instance.

Method Summary

Modifier and Type	Method and Description
protected java.lang.String	argString() Gets the string form for any arguments to this instance.
int	codeSize() Gets the size of this instruction, in 16-bit code units.
protected java.lang.String	listingString0(boolean noteIndices) Helper for DalvInsn.listingString(java.lang.String, int, boolean), which returns the string form of this instance suitable for inclusion in a human-oriented listing dump, not including the instruction address and without respect for any output formatting.
DalvInsn	withRegisters(RegisterSpecList registers) Returns an instance that is just like this one, except that the register list is replaced by the given one, and its address is reset.
void	writeTo(AnnotatedOutput out) Writes this instance to the given output.

Methods inherited from class com.android.dx.dex.code.VariableSizeInsn

withOpcode, withRegisterOffset

Methods inherited from class com.android.dx.dex.code.DalvInsn

expandedPrefix, expandedSuffix, expandedVersion, getAddress, getLowRegVersion, getMinimumRegisterRequirement, getNextAddress, getOpcode, getPosition, getRegisters, hasAddress, hasResult, identifierString, listingString, makeMove, setAddress, toString, withMapper

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

HighRegisterPrefix

public HighRegisterPrefix(SourcePosition position,
                          RegisterSpecList registers)

Constructs an instance. The output address of this instance is initially unknown (-1).

Parameters:

position - non-null; source position

registers - non-null; source registers

Method Detail

codeSize

public int codeSize()

Gets the size of this instruction, in 16-bit code units.

Specified by:

codeSize in class DalvInsn

Returns:

>= 0; the code size of this instruction

writeTo

public void writeTo(AnnotatedOutput out)

Writes this instance to the given output. This method should never annotate the output.

Specified by:

writeTo in class DalvInsn

Parameters:

out - non-null; where to write to

withRegisters

public DalvInsn withRegisters(RegisterSpecList registers)

Returns an instance that is just like this one, except that the register list is replaced by the given one, and its address is reset.

Specified by:

withRegisters in class DalvInsn

Parameters:

registers - non-null; new register list

Returns:

non-null; an appropriately-constructed instance

argString

protected java.lang.String argString()

Gets the string form for any arguments to this instance. Subclasses must override this.

Specified by:

argString in class DalvInsn

Returns:

null-ok; the string version of any arguments or null if there are none

listingString0

protected java.lang.String listingString0(boolean noteIndices)

Helper for DalvInsn.listingString(java.lang.String, int, boolean), which returns the string form of this instance suitable for inclusion in a human-oriented listing dump, not including the instruction address and without respect for any output formatting. This method should return null if this instance should not appear in a listing.

Specified by:

listingString0 in class DalvInsn

Parameters:

noteIndices - whether to include an explicit notation of constant pool indices

Returns:

null-ok; the listing string