Constant Field Values

Contents

• nachos.machine.*
• nachos.network.*
• nachos.threads.*
• nachos.userprog.*

nachos.machine.*

nachos.machine.CoffSection

public static final int

headerLength

40

nachos.machine.ElevatorBank

public static final int	dirDown	-1
public static final int	dirNeither	0
public static final int	dirUp	1

nachos.machine.ElevatorControllerInterface

public static final int	dirDown	-1
public static final int	dirNeither	0
public static final int	dirUp	1
public static final int	timeDoorsOpen	500

nachos.machine.ElevatorEvent

public static final int	eventDownButtonPressed	1
public static final int	eventElevatorArrived	3
public static final int	eventFloorButtonPressed	2
public static final int	eventRidersDone	4
public static final int	eventUpButtonPressed	0

nachos.machine.Packet

public static final int	headerLength	4
public static final int	linkAddressLimit	128
public static final int	maxContentsLength	28
public static final int	maxPacketLength	32

nachos.machine.Processor

public static final int	exceptionAddressError	5
public static final int	exceptionBusError	4
public static final int	exceptionIllegalInstruction	7
public static final int	exceptionOverflow	6
public static final int	exceptionPageFault	1
public static final int	exceptionReadOnly	3
public static final int	exceptionSyscall	0
public static final int	exceptionTLBMiss	2
public static final int	maxPages	4194304
public static final int	numUserRegisters	38
public static final int	pageSize	1024
public static final int	regA0	4
public static final int	regA1	5
public static final int	regA2	6
public static final int	regA3	7
public static final int	regBadVAddr	37
public static final int	regCause	36
public static final int	regHi	33
public static final int	regLo	32
public static final int	regNextPC	35
public static final int	regPC	34
public static final int	regRA	31
public static final int	regSP	29
public static final int	regV0	2
public static final int	regV1	3

nachos.machine.RiderEvent

public static final int	eventDirectionChanged	1
public static final int	eventDoorsClosed	2
public static final int	eventDoorsOpened	0

nachos.machine.RiderInterface

public static final int	dirDown	-1
public static final int	dirNeither	0
public static final int	dirUp	1

nachos.machine.Stats

public static final int	ConsoleTime	100
public static final int	ElevatorTicks	2000
public static final int	KernelTick	10
public static final int	NetworkTime	100
public static final int	RotationTime	500
public static final int	SeekTime	500
public static final int	TimerTicks	500
public static final int	UserTick	1

nachos.machine.TCB

public static final int

maxThreads

250

nachos.network.*

nachos.network.MailMessage

public static final int	headerLength	2
public static final int	maxContentsLength	26
public static final int	portLimit	128

nachos.threads.*

nachos.threads.PriorityScheduler

public static final int	priorityDefault	1
public static final int	priorityMaximum	7
public static final int	priorityMinimum	0

nachos.userprog.*

nachos.userprog.UserProcess

protected final int

stackPages

8