Class SVM_INITO

java.lang.Object

svm.instruction.SVM_Instruction

svm.instruction.SVM_INITO

public class SVM_INITO
extends SVM_Instruction

SVM-INSTRUCTION: INITO

Runtime Stack
   ..., oaddr →
   ...

The oaddr of a save-object is popped off the Runtime stack. It points to the first value after the Object head, and is reduced and saved in the SAVE-OBJECT pointer.

     SAVE-OBJECT ---------->.=====================.
                            |                     |
                            |     Object head     |
                            |                     |
     TOS oaddr ------------>|=====================|
                            |                     |
           NEXT-------------|->.================. |
                            |  |     oaddr      | |
                            |  '================' |
                            |                     |
                            '====================='

See: SVM_GETO and SVM_SETO. See also S-Port - Definition of S-code - sect. 7. INTERMEDIATE RESULTS.

Link to GitHub: Source File.

Author:

S-Port: Definition of S-code, Øystein Myhre Andersen

Field Summary

Fields

Modifier and Type	Field	Description
private static int	SAVE_INDEX	The SAVE_INDEX so far
private static int	SAVE_LENGTH	The SAVE_LENGTH
private static ObjectAddress	SAVE_OBJECT	The object address to the SAVE_OBJECT

Fields inherited from class SVM_Instruction

iADD, iADDREG, iAND, iASSIGN, iCALL, iCALLSYS, iCOMPARE, iCONVERT, iDECO, iDIST, iDIV, iDUP, iENTER, iEQV, iGETO, iGOTO, iIMP, iINCO, iINITO, iJUMP, iJUMPIF, iLINE, iLOAD, iLOADA, iMax, iMULT, iNEG, iNOOP, iNOT, iOR, iPOPK, iPRECALL, iPUSHC, iPUSHLEN, iPUSHR, iREM, iRESTORE, iRETURN, iSAVE, iSETO, iSHIFT, iSTORE, iSUB, iSWITCH, iXOR, opcode

Constructor Summary

Constructors

Constructor	Description
SVM_INITO()	Construct a new SVM_INITO instruction

Method Summary

Modifier and Type	Method	Description
void	execute()	Execute this SVM instruction
(package private) static ObjectAddress	get()	Used by SVM_GETO
static SVM_Instruction	read(AttributeInputStream inpt)	Reads an SVM_INITO instruction from the given input.
(package private) static void	set(ObjectAddress oaddr)	Used by SVM_SETO
String	toString()
void	write(AttributeOutputStream oupt)	Write this SVM instruction to the given output.

Methods inherited from class SVM_Instruction

edOpcode, readObject

Methods inherited from class Object

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

Field Details

SAVE_OBJECT

private static ObjectAddress SAVE_OBJECT

The object address to the SAVE_OBJECT

SAVE_INDEX

private static int SAVE_INDEX

The SAVE_INDEX so far

SAVE_LENGTH

private static int SAVE_LENGTH

The SAVE_LENGTH

Constructor Details

SVM_INITO

public SVM_INITO()

Construct a new SVM_INITO instruction

Method Details

get

static ObjectAddress get()

Used by SVM_GETO

Returns:

the object address saved according to SAVE_INDEX

set

static void set(ObjectAddress oaddr)

Used by SVM_SETO

Parameters:

oaddr - the object address to save according to SAVE_INDEX

execute

public void execute()

Description copied from class: SVM_Instruction

Execute this SVM instruction

Overrides:

execute in class SVM_Instruction

toString

public String toString()

Overrides:

toString in class Object

write

public void write(AttributeOutputStream oupt)
           throws IOException

Description copied from class: SVM_Instruction

Write this SVM instruction to the given output.

Overrides:

write in class SVM_Instruction

Parameters:

oupt - the output stream

Throws:

IOException - if IOException occur

read

public static SVM_Instruction read(AttributeInputStream inpt)
                            throws IOException

Reads an SVM_INITO instruction from the given input.

Parameters:

inpt - the input stream

Returns:

the SVM_INITO instruction read

Throws:

IOException - if IOException occur