nl.kbna.dioscuri.module.cpu
Class Instruction_GRP7

java.lang.Object
  nl.kbna.dioscuri.module.cpu.Instruction_GRP7

All Implemented Interfaces:

Instruction

public class Instruction_GRP7
extends java.lang.Object
implements Instruction

Intel opcode 0F 01
Group 7 opcode extension: SGDT, SIDT, LGDT, LIDT, SMSW, LMSW, INVLPG.
Performs the selected instruction (indicated by bits 5, 4, 3 of the ModR/M byte).
Flags modified: depending on instruction can be any of: OF, SF, ZF, AF, PF, CF

Field Summary

(package private) byte	addressByte
private CPU	cpu
(package private) byte[]	destinationRegister
(package private) int	iCarryFlag
(package private) int	intermediateResult
private static java.util.logging.Logger	logger
(package private) byte[]	memoryReferenceDisplacement
(package private) byte[]	memoryReferenceLocation
(package private) byte[]	oldValue
(package private) boolean	operandWordSize
(package private) byte[]	sourceValue1
(package private) byte[]	sourceValue2
(package private) byte[]	temp
(package private) byte[]	tempResult
(package private) byte[]	word0x0001

Constructor Summary

Instruction_GRP7()
Class constructor

Instruction_GRP7(CPU processor)
Class constructor specifying processor reference

Method Summary

void	execute() Execute any of the following Group 7 instructions: SGDT, SIDT, LGDT, LIDT, SMSW, LMSW, INVLPG.

Methods inherited from class java.lang.Object

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

Field Detail

cpu

private CPU cpu

operandWordSize

boolean operandWordSize

addressByte

byte addressByte

memoryReferenceLocation

byte[] memoryReferenceLocation

memoryReferenceDisplacement

byte[] memoryReferenceDisplacement

sourceValue1

byte[] sourceValue1

sourceValue2

byte[] sourceValue2

oldValue

byte[] oldValue

destinationRegister

byte[] destinationRegister

intermediateResult

int intermediateResult

word0x0001

byte[] word0x0001

iCarryFlag

int iCarryFlag

tempResult

byte[] tempResult

temp

byte[] temp

logger

private static java.util.logging.Logger logger

Constructor Detail

Instruction_GRP7

public Instruction_GRP7()

Class constructor

Instruction_GRP7

public Instruction_GRP7(CPU processor)

Class constructor specifying processor reference

Parameters:

processor - Reference to CPU class

Method Detail

execute

public void execute()
             throws CPUInstructionException

Execute any of the following Group 7 instructions: SGDT, SIDT, LGDT, LIDT, SMSW, LMSW, INVLPG.

Specified by:

execute in interface Instruction

Throws:

CPUInstructionException