HadesInterface

Overview

Package

Class

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

hades.models.mips.mipsmemory
Class HadesInterface

java.lang.Object
  hades.models.mips.mipsmemory.HadesInterface

All Implemented Interfaces:: Memory, MipsMemory, Resetable

public class HadesInterface
extends java.lang.Object
implements Resetable, MipsMemory

Upper part of the HADES interface: State machine for memory access

Field Summary
`protected int`	`addr23`
`protected boolean`	`burstWait`
`protected boolean`	`debug`
`protected static int`	`DMA`
`protected static int`	`DMAEND`
`protected static int`	`IDLE`
`protected IDTR3051`	`idt`
`protected int`	`lastWriteAdr`
`protected java.lang.String`	`name`
`protected int`	`nextResult`
`protected static int`	`READADR`
`protected static int`	`READBURSTDATA`
`protected static int`	`READBURSTWAIT`
`protected static int`	`READDATA`
`protected static int`	`READWAIT`
`protected int`	`requestAdr`
`protected int`	`requestData`
`protected boolean`	`requestIsBurst`
`protected boolean`	`requestIsWrite`
`protected boolean`	`requestPresent`
`protected int`	`resultAdr`
`protected static int`	`RESULTBUFSIZE`
`protected boolean`	`resultIsBurst`
`protected int[]`	`results`
`protected int`	`resultsPresent`
`protected int`	`size`
`protected int`	`state`
`protected static int`	`WRITEADR`
`protected static int`	`WRITEDATA`
`protected static int`	`WRITEEND1`
`protected static int`	`WRITEEND2`
`protected boolean`	`wrNearPossible`

Constructor Summary
`protected`	`HadesInterface(java.lang.String newName, IDTR3051 newIdt)`

Method Summary
`boolean`	`beginCycle()` next cycle, perform access to lower layer if needed, wait returned
`void`	`endCycle()` end of a cycle, all core actions are done, memory actions can complete
`boolean`	`finished()` request end of read or write access
`boolean`	`getHit(int adr)` Is data present at the specified address?
`boolean`	`getLog()` Get debug mode
`int`	`getMemorySize()` Capacity of the memory in words
`java.lang.String`	`getName()` get the name of this memory
`int`	`getReadResult()` get the result of the last read operation
`protected java.lang.String`	`getStateString()`
`int`	`getWordWidth()` Witdh of one word in bits
`protected void`	`giveAddress(int adr)`
`void`	`installEntryHandler(EntryHandler entryHandler)` setEntry() calles this EntryHandler
`protected boolean`	`nextBurstWord()`
`void`	`por()` Hardware reset or power on reset
`void`	`read(int adr, boolean burst)` Drive busses for read access
`int`	`readMemory(int adr)` Read a word from the memory
`void`	`reset()` Software reset, initiated by a special assembly statement or an operating system call
`void`	`setEntry(int entry, int globalPointer)` Set the entry address and the global pointer if memory contains a executable program
`void`	`setLog(boolean newDebug)` Enable or disable logging output
`void`	`setMemorySize(int newSize)`
`void`	`setName(java.lang.String newName)` Set the name of this memory
`protected void`	`startDMA()`
`protected void`	`startRead()`
`protected void`	`startWrite()`
`void`	`write(int adr, int value)` Drive busses for write access
`void`	`writeMemory(int adr, int value)` Write a word into the memory

Methods inherited from class java.lang.Object

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

Field Detail

requestPresent

protected boolean requestPresent

requestIsWrite

protected boolean requestIsWrite

requestIsBurst

protected boolean requestIsBurst

requestAdr

protected int requestAdr

requestData

protected int requestData

resultsPresent

protected int resultsPresent

nextResult

protected int nextResult

RESULTBUFSIZE

protected static final int RESULTBUFSIZE

See Also:: Constant Field Values

resultAdr

protected int resultAdr

resultIsBurst

protected boolean resultIsBurst

results

protected int[] results

burstWait

protected boolean burstWait

wrNearPossible

protected boolean wrNearPossible

lastWriteAdr

protected int lastWriteAdr

IDLE

protected static final int IDLE

See Also:: Constant Field Values

WRITEADR

protected static final int WRITEADR

See Also:: Constant Field Values

WRITEDATA

protected static final int WRITEDATA

See Also:: Constant Field Values

WRITEEND1

protected static final int WRITEEND1

See Also:: Constant Field Values

WRITEEND2

protected static final int WRITEEND2

See Also:: Constant Field Values

READADR

protected static final int READADR

See Also:: Constant Field Values

READWAIT

protected static final int READWAIT

See Also:: Constant Field Values

READDATA

protected static final int READDATA

See Also:: Constant Field Values

READBURSTWAIT

protected static final int READBURSTWAIT

See Also:: Constant Field Values

READBURSTDATA

protected static final int READBURSTDATA

See Also:: Constant Field Values

DMA

protected static final int DMA

See Also:: Constant Field Values

DMAEND

protected static final int DMAEND

See Also:: Constant Field Values

state

protected int state

addr23

protected int addr23

debug

protected boolean debug

name

protected java.lang.String name

idt

protected IDTR3051 idt

size

protected int size

Constructor Detail

HadesInterface

protected HadesInterface(java.lang.String newName,
                         IDTR3051 newIdt)

Method Detail

por

public void por()

Description copied from interface: Resetable

Hardware reset or power on reset

Specified by:: por in interface Resetable

reset

public void reset()

Description copied from interface: Resetable

Software reset, initiated by a special assembly statement or an operating system call

Specified by:: reset in interface Resetable

getStateString

protected java.lang.String getStateString()

giveAddress

protected void giveAddress(int adr)

nextBurstWord

protected boolean nextBurstWord()

startDMA

protected void startDMA()

startWrite

protected void startWrite()