dioscuri.module.cpu32
Class FpuState

java.lang.Object
  dioscuri.module.cpu32.FpuState

All Implemented Interfaces:

Hibernatable

Direct Known Subclasses:

FpuState64

public abstract class FpuState
extends java.lang.Object
implements Hibernatable

Author:

Bram Lohman, Bart Kiers

Field Summary

int	conditionCode
static int	FPU_PRECISION_CONTROL_DOUBLE
static int	FPU_PRECISION_CONTROL_EXTENDED
static int	FPU_PRECISION_CONTROL_SINGLE
static int	FPU_ROUNDING_CONTROL_DOWN
static int	FPU_ROUNDING_CONTROL_EVEN
static int	FPU_ROUNDING_CONTROL_TRUNCATE
static int	FPU_ROUNDING_CONTROL_UP
static int	FPU_TAG_EMPTY
static int	FPU_TAG_SPECIAL
static int	FPU_TAG_VALID
static int	FPU_TAG_ZERO
boolean	infinityControl
long	lastData
long	lastIP
int	lastOpcode
static int	STACK_DEPTH
int	top

Constructor Summary

FpuState()

Method Summary

abstract void	checkExceptions()
abstract void	clearExceptions()
void	copyStateInto(FpuState copy)
abstract void	dumpState(java.io.DataOutput output)
boolean	equals(java.lang.Object another)
abstract boolean	getBusy()
abstract int	getControl()
abstract boolean	getDenormalizedOperand()
abstract boolean	getDenormalizedOperandMask()
abstract boolean	getErrorSummaryStatus()
abstract boolean	getInvalidOperation()
abstract boolean	getInvalidOperationMask()
abstract boolean	getOverflow()
abstract boolean	getOverflowMask()
abstract boolean	getPrecision()
abstract int	getPrecisionControl()
abstract boolean	getPrecisionMask()
abstract int	getRoundingControl()
abstract boolean	getStackFault()
abstract int	getStatus()
abstract int	getTag(int index)
abstract int	getTagWord()
abstract boolean	getUnderflow()
abstract boolean	getUnderflowMask()
abstract boolean	getZeroDivide()
abstract boolean	getZeroDivideMask()
int	hashCode()
abstract void	init()
abstract void	loadState(java.io.DataInput input)
abstract double	pop()
abstract void	push(double x)
abstract void	setAllMasks(boolean value)
abstract void	setControl(int w)
abstract void	setDenormalizedOperand()
abstract void	setDenormalizedOperandMask(boolean value)
abstract void	setInvalidOperation()
abstract void	setInvalidOperationMask(boolean value)
abstract void	setOverflow()
abstract void	setOverflowMask(boolean value)
abstract void	setPrecision()
abstract void	setPrecisionControl(int value)
abstract void	setPrecisionMask(boolean value)
abstract void	setRoundingControl(int value)
abstract void	setST(int index, double value)
abstract void	setStackFault()
abstract void	setStatus(int w)
abstract void	setTagWord(int w)
abstract void	setUnderflow()
abstract void	setUnderflowMask(boolean value)
abstract void	setZeroDivide()
abstract void	setZeroDivideMask(boolean value)
abstract double	ST(int index)

Methods inherited from class java.lang.Object

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

Field Detail

STACK_DEPTH

public static final int STACK_DEPTH

See Also:

Constant Field Values

FPU_PRECISION_CONTROL_SINGLE

public static final int FPU_PRECISION_CONTROL_SINGLE

See Also:

Constant Field Values

FPU_PRECISION_CONTROL_DOUBLE

public static final int FPU_PRECISION_CONTROL_DOUBLE

See Also:

Constant Field Values

FPU_PRECISION_CONTROL_EXTENDED

public static final int FPU_PRECISION_CONTROL_EXTENDED

See Also:

Constant Field Values

FPU_ROUNDING_CONTROL_EVEN

public static final int FPU_ROUNDING_CONTROL_EVEN

See Also:

Constant Field Values

FPU_ROUNDING_CONTROL_DOWN

public static final int FPU_ROUNDING_CONTROL_DOWN

See Also:

Constant Field Values

FPU_ROUNDING_CONTROL_UP

public static final int FPU_ROUNDING_CONTROL_UP

See Also:

Constant Field Values

FPU_ROUNDING_CONTROL_TRUNCATE

public static final int FPU_ROUNDING_CONTROL_TRUNCATE

See Also:

Constant Field Values

FPU_TAG_VALID

public static final int FPU_TAG_VALID

See Also:

Constant Field Values

FPU_TAG_ZERO

public static final int FPU_TAG_ZERO

See Also:

Constant Field Values

FPU_TAG_SPECIAL

public static final int FPU_TAG_SPECIAL

See Also:

Constant Field Values

FPU_TAG_EMPTY

public static final int FPU_TAG_EMPTY

See Also:

Constant Field Values

conditionCode

public int conditionCode

top

public int top

infinityControl

public boolean infinityControl

lastIP

public long lastIP

lastData

public long lastData

lastOpcode

public int lastOpcode

Constructor Detail

FpuState

public FpuState()

Method Detail

setInvalidOperation

public abstract void setInvalidOperation()

setDenormalizedOperand

public abstract void setDenormalizedOperand()

setZeroDivide

public abstract void setZeroDivide()

setOverflow

public abstract void setOverflow()

setUnderflow

public abstract void setUnderflow()

setPrecision

public abstract void setPrecision()

setStackFault

public abstract void setStackFault()

clearExceptions

public abstract void clearExceptions()

checkExceptions

public abstract void checkExceptions()
                              throws ProcessorException

Throws:

ProcessorException

getInvalidOperation

public abstract boolean getInvalidOperation()

Returns:

-

getDenormalizedOperand

public abstract boolean getDenormalizedOperand()

Returns:

-

getZeroDivide

public abstract boolean getZeroDivide()

Returns:

-

getOverflow

public abstract boolean getOverflow()

Returns:

-

getUnderflow

public abstract boolean getUnderflow()

Returns:

-

getPrecision

public abstract boolean getPrecision()

Returns:

-

getStackFault

public abstract boolean getStackFault()

Returns:

-

getErrorSummaryStatus

public abstract boolean getErrorSummaryStatus()

Returns:

-

getBusy

public abstract boolean getBusy()

Returns:

-

getInvalidOperationMask

public abstract boolean getInvalidOperationMask()

Returns:

-

getDenormalizedOperandMask

public abstract boolean getDenormalizedOperandMask()

Returns:

-

getZeroDivideMask

public abstract boolean getZeroDivideMask()

Returns:

-

getOverflowMask

public abstract boolean getOverflowMask()

Returns:

-

getUnderflowMask

public abstract boolean getUnderflowMask()

Returns:

-

getPrecisionMask

public abstract boolean getPrecisionMask()

Returns:

-

getPrecisionControl

public abstract int getPrecisionControl()

Returns:

-

getRoundingControl

public abstract int getRoundingControl()

Returns:

-

setInvalidOperationMask

public abstract void setInvalidOperationMask(boolean value)

Parameters:

value -

setDenormalizedOperandMask

public abstract void setDenormalizedOperandMask(boolean value)

Parameters:

value -

setZeroDivideMask

public abstract void setZeroDivideMask(boolean value)

Parameters:

value -

setOverflowMask

public abstract void setOverflowMask(boolean value)

Parameters:

value -

setUnderflowMask

public abstract void setUnderflowMask(boolean value)

Parameters:

value -

setPrecisionMask

public abstract void setPrecisionMask(boolean value)

Parameters:

value -

setPrecisionControl

public abstract void setPrecisionControl(int value)

Parameters:

value -

setRoundingControl

public abstract void setRoundingControl(int value)

Parameters:

value -

setAllMasks

public abstract void setAllMasks(boolean value)

Parameters:

value -

init

public abstract void init()

push

public abstract void push(double x)
                   throws ProcessorException

Parameters:

x -

Throws:

ProcessorException

pop

public abstract double pop()
                    throws ProcessorException

Returns:

-

Throws:

ProcessorException

ST

public abstract double ST(int index)
                   throws ProcessorException

Parameters:

index -

Returns:

-

Throws:

ProcessorException

setST

public abstract void setST(int index,
                           double value)

Parameters:

index -

value -

getStatus

public abstract int getStatus()

Returns:

-

setStatus

public abstract void setStatus(int w)

Parameters:

w -

getControl

public abstract int getControl()

Returns:

-

setControl

public abstract void setControl(int w)

Parameters:

w -

getTagWord

public abstract int getTagWord()

Returns:

-

setTagWord

public abstract void setTagWord(int w)

Parameters:

w -

getTag

public abstract int getTag(int index)

Parameters:

index -

Returns:

-

dumpState

public abstract void dumpState(java.io.DataOutput output)
                        throws java.io.IOException

Parameters:

output -

Throws:

java.io.IOException

loadState

public abstract void loadState(java.io.DataInput input)
                        throws java.io.IOException

Parameters:

input -

Throws:

java.io.IOException

copyStateInto

public void copyStateInto(FpuState copy)

Parameters:

copy -

equals

public boolean equals(java.lang.Object another)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object