hades.models.mips.core
Class InstrFrame

java.lang.Object
  hades.models.mips.core.InstrFrame

All Implemented Interfaces:

Resetable

public class InstrFrame

extends java.lang.Object

implements Resetable

Execution unit, handles all pipeline stages and dispatches them to other units

Field Summary

BaseInstr	aktInstr
int	aktPipeStage
protected Coprocessor[]	coproc
protected boolean	debug
Decoder	decoder
int	instrFrameNumber
int	instruction
boolean	isBreakpoint
boolean	isDelaySlot
boolean	isJumpInstr
int[]	lastPipeStatus
protected AccessMemory	mem
BaseInstr	nopInstr
protected PartHandler	partHandler
static int	PIPE_CALC_ALU
static int	PIPE_DECODE1
static int	PIPE_DECODE2
static int	PIPE_FETCH_INSTR
static int	PIPE_GIVE_DATA_ADR
static int	PIPE_GIVE_INSTR_ADR
static int	PIPE_IDLE
static int	PIPE_OPERATE_DATA
static int	PIPE_SIZE
static int	PIPE_TRANS_DATA_ADR
static int	PIPE_TRANS_INSTR_ADR
static int	PIPE_WRITE_REG
java.lang.String[]	pipeStageName
int	realInstrAdr
protected Registers	reg
Splitter	splitter
boolean	valid
int	virtualInstrAdr

Constructor Summary

InstrFrame(PartHandler newPartHandler, int frameNumber)
Initialization

Method Summary

void	beginDisassemble() Befoe disassemble() can be used beginDisassemble() has to be called in order to save the splitters state
void	calcAlu()
void	decodeInstr()
java.lang.String	disassemble(int instruction) Disassemble one instruction word
java.lang.String	disassembleName(int instruction) Get only the name of the instruction
java.lang.String	disassembleOperands(int instruction) Get only the operands of the instruction
void	doNothing() Maintenance
void	endDisassemble() After the last call of disassemble() endDisassemble() has to be called in order to restore the splitters state
void	fetchInstr()
void	finishInstr()
boolean	getBreakpoint() Internal Breakpoint detection
boolean	getLog()
void	giveDataAdr()
void	giveInstrAdr()
void	operateData()
void	por() Power on reset or hardware reset
void	reset() software reset
void	setLog(boolean newDebug)
void	setValid(boolean newValid) Instruction will only be executed when its valid-flag is set
void	translateDataAdr()
void	translateInstrAdr() Pipeline stages
void	writeRegister()

Methods inherited from class java.lang.Object

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

Field Detail

instrFrameNumber

public int instrFrameNumber

aktInstr

public BaseInstr aktInstr

nopInstr

public BaseInstr nopInstr

realInstrAdr

public int realInstrAdr

virtualInstrAdr

public int virtualInstrAdr

valid

public boolean valid

isDelaySlot

public boolean isDelaySlot

isJumpInstr

public boolean isJumpInstr

isBreakpoint

public boolean isBreakpoint

debug

protected boolean debug

aktPipeStage

public int aktPipeStage

lastPipeStatus

public int[] lastPipeStatus

pipeStageName

public java.lang.String[] pipeStageName

splitter

public Splitter splitter

decoder

public Decoder decoder

instruction

public int instruction

partHandler

protected PartHandler partHandler

reg

protected Registers reg

mem

protected AccessMemory mem

coproc

protected Coprocessor[] coproc

PIPE_IDLE

public static final int PIPE_IDLE

See Also:

Constant Field Values

PIPE_TRANS_INSTR_ADR

public static final int PIPE_TRANS_INSTR_ADR

See Also:

Constant Field Values

PIPE_GIVE_INSTR_ADR

public static final int PIPE_GIVE_INSTR_ADR

See Also:

Constant Field Values

PIPE_FETCH_INSTR

public static final int PIPE_FETCH_INSTR

See Also:

Constant Field Values

PIPE_DECODE1

public static final int PIPE_DECODE1

See Also:

Constant Field Values

PIPE_DECODE2

public static final int PIPE_DECODE2

See Also:

Constant Field Values

PIPE_CALC_ALU

public static final int PIPE_CALC_ALU

See Also:

Constant Field Values

PIPE_TRANS_DATA_ADR

public static final int PIPE_TRANS_DATA_ADR

See Also:

Constant Field Values

PIPE_GIVE_DATA_ADR

public static final int PIPE_GIVE_DATA_ADR

See Also:

Constant Field Values

PIPE_OPERATE_DATA

public static final int PIPE_OPERATE_DATA

See Also:

Constant Field Values

PIPE_WRITE_REG

public static final int PIPE_WRITE_REG

See Also:

Constant Field Values

PIPE_SIZE

public static final int PIPE_SIZE

See Also:

Constant Field Values

Constructor Detail

InstrFrame

public InstrFrame(PartHandler newPartHandler,
                  int frameNumber)

Initialization

Method Detail

por

public void por()

Power on reset or hardware reset

Specified by:

por in interface Resetable

reset

public void reset()

software reset

Specified by:

reset in interface Resetable

doNothing

public void doNothing()

Maintenance

setValid

public void setValid(boolean newValid)

Instruction will only be executed when its valid-flag is set

getBreakpoint

public boolean getBreakpoint()

Internal Breakpoint detection

setLog

public void setLog(boolean newDebug)

getLog

public boolean getLog()

beginDisassemble

public void beginDisassemble()

Befoe disassemble() can be used beginDisassemble() has to be called in order to save the splitters state

disassemble

public java.lang.String disassemble(int instruction)

Disassemble one instruction word

disassembleName

public java.lang.String disassembleName(int instruction)

Get only the name of the instruction

disassembleOperands

public java.lang.String disassembleOperands(int instruction)

Get only the operands of the instruction

endDisassemble

public void endDisassemble()

After the last call of disassemble() endDisassemble() has to be called in order to restore the splitters state

translateInstrAdr

public void translateInstrAdr()

Pipeline stages

giveInstrAdr

public void giveInstrAdr()

fetchInstr

public void fetchInstr()

decodeInstr

public void decodeInstr()

calcAlu

public void calcAlu()

translateDataAdr

public void translateDataAdr()

giveDataAdr

public void giveDataAdr()

operateData

public void operateData()

writeRegister

public void writeRegister()

finishInstr

public void finishInstr()