Class SVM_CALL

java.lang.Object

svm.instruction.SVM_Instruction

svm.instruction.SVM_CALL

public class SVM_CALL
extends SVM_Instruction

SVM-INSTRUCTION: CALL rutadr returSlot

Runtime Stack ..., value1, value2, ... , value'nPar → ..., value1, value2, ... , value'exportSize

Link to GitHub: Source File.

Author:

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

Field Summary

Fields

Modifier and Type	Field	Description
private final ObjectAddress	returSlot	The frame slot for the retur address
private final ProgramAddress	rutAddr	The routine address

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

Modifier	Constructor	Description
private	SVM_CALL(AttributeInputStream inpt)	Construct an SVM_CALL instruction from the given input.
	SVM_CALL(ProgramAddress rutAddr, ObjectAddress returSlot)	Construct a new SVM_CALL_SYS instruction

Method Summary

Modifier and Type	Method	Description
void	execute()	Execute this SVM instruction
static SVM_CALL	ofTOS(ObjectAddress returSlot)	Returns a new SVM_CALL with the given 'returSlot'
static SVM_Instruction	read(AttributeInputStream inpt)	Reads an SVM_CALL instruction from the given input.
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

rutAddr

private final ProgramAddress rutAddr

The routine address

returSlot

private final ObjectAddress returSlot

The frame slot for the retur address

Constructor Details

SVM_CALL

public SVM_CALL(ProgramAddress rutAddr,
 ObjectAddress returSlot)

Construct a new SVM_CALL_SYS instruction

Parameters:

rutAddr - the routine address

returSlot - the frame slot for the return address

SVM_CALL

private SVM_CALL(AttributeInputStream inpt)
          throws IOException

Construct an SVM_CALL instruction from the given input.

Parameters:

inpt - the input stream

Throws:

IOException - if IOException occur

Method Details

ofTOS

public static SVM_CALL ofTOS(ObjectAddress returSlot)

Returns a new SVM_CALL with the given 'returSlot'

Parameters:

returSlot - the frame slot for the return address

Returns:

a new SVM_CALL with the given 'returSlot'

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_CALL instruction from the given input.

Parameters:

inpt - the input stream

Returns:

the SVM_CALL instruction read

Throws:

IOException - if IOException occur