Class SVM_DECO

java.lang.Object

svm.instruction.SVM_Instruction

svm.instruction.SVM_DECO

public class SVM_DECO
extends SVM_Instruction

SVM-INSTRUCTION: DECO

Runtime Stack
   ..., sos, tos →
   ..., result

The size 'tos' and the oaddr 'sos' are popped off the Runtime stack.
The 'result' is calculated as result = new ObjectAddress(sos.segID, sos.offset - tos)
Then the 'result' is pushed onto the Runtime Stack.

Link to GitHub: Source File.

Author:

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

Field Summary

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_DECO()	Construct a new SVM_DECO instruction

Method Summary

Modifier and Type	Method	Description
void	execute()	Execute this SVM instruction
static SVM_DECO	read(AttributeInputStream inpt)	Reads an SVM_DECO 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

Constructor Details

SVM_DECO

public SVM_DECO()

Construct a new SVM_DECO instruction

Method Details

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_DECO read(AttributeInputStream inpt)
                     throws IOException

Reads an SVM_DECO instruction from the given input.

Parameters:

inpt - the input stream

Returns:

the SVM_DECO instruction read

Throws:

IOException - if IOException occur