cse378.cache
Class Cache

java.lang.Object
  cse378.AbstractCache
      cse378.cache.Cache

public class Cache
extends AbstractCache

Cache for CSE 378 lab 5

Field Summary

Fields inherited from class cse378.AbstractCache

blockBits, blockSize, cachelines, cleanMisses, dirtyMisses, hits, lineBits, numLines, numSets, stat

Constructor Summary

Cache(Component c, int lines, int sets, int blockSize)

Method Summary

protected BitField	computeIndex(cse378.address.PhysicalAddress location) Compute the index of a particular location
protected BitField	computeTag(cse378.address.PhysicalAddress location) Compute the tag for a particular location.
protected CacheLine	getLine(BitField index) Get the line addressed by the index
private void	initStatus(cse378.address.PhysicalAddress addr)
void	load(cse378.address.PhysicalAddress addr) Signal a read from the cache
void	store(cse378.address.PhysicalAddress addr) Signal a write to Cache

Methods inherited from class cse378.AbstractCache

getCleanMisses, getCounts, getDirtyMisses, getHits, getInfo, getStatus

Methods inherited from class java.lang.Object

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

Constructor Detail

Cache

public Cache(Component c,
             int lines,
             int sets,
             int blockSize)

Method Detail

getLine

protected CacheLine getLine(BitField index)

Get the line addressed by the index

Specified by:

getLine in class AbstractCache

Parameters:

index - a BitField specifying the index

Returns:

AbstractLine addressed by the index

initStatus

private void initStatus(cse378.address.PhysicalAddress addr)

load

public void load(cse378.address.PhysicalAddress addr)

Signal a read from the cache

Specified by:

load in class AbstractCache

Parameters:

addr - Physical Address of the load

store

public void store(cse378.address.PhysicalAddress addr)

Signal a write to Cache

Specified by:

store in class AbstractCache

Parameters:

addr - physical address of the load target

computeIndex

protected BitField computeIndex(cse378.address.PhysicalAddress location)

Compute the index of a particular location

Specified by:

computeIndex in class AbstractCache

Parameters:

location - location in memory to be wrote to

Returns:

integer that indexes into the lines in the cache

computeTag

protected BitField computeTag(cse378.address.PhysicalAddress location)

Compute the tag for a particular location. The tag uniquely identifies the location given a line ( and set )

Specified by:

computeTag in class AbstractCache

Parameters:

location - location in memory to be wrote to

Returns:

tag that uniquely identifies a memory location