sim
Class Cache

java.lang.Object
  |
  +--sim.Cache

public class Cache

extends java.lang.Object

Implements a very simple cache simulation.

Version:

$Id: Cache.java,v 1.4 2002/07/01 22:49:08 dugan Exp $

Nested Class Summary

(package private) class	Cache.Line
(package private) class	Cache.Set

Field Summary

(package private) int	assoc
(package private) int	lineSize
(package private) java.lang.String	name
(package private) static java.util.Random	rand
(package private) int	readHits
(package private) int	readMisses
(package private) Cache.Set[]	sets
(package private) int	writeHits
(package private) int	writeMisses

Constructor Summary

Cache(java.lang.String name, int numSets, int assoc, int lineSize)
Make a new cache with the given number of lines, associativity, and the given linesize.

Method Summary

void	dumpStats() Dump the stats that have been collected thus far.
void	initialize()
boolean	isHit(int addr) Is the given address mapped in the cache?
void	read(int addr) Do a read access of the cache.
void	write(int addr) Implements a write-around policy on misses.

Methods inherited from class java.lang.Object

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

Field Detail

name

java.lang.String name

sets

Cache.Set[] sets

readHits

int readHits

readMisses

int readMisses

writeHits

int writeHits

writeMisses

int writeMisses

lineSize

int lineSize

assoc

int assoc

rand

static final java.util.Random rand

Constructor Detail

Cache

public Cache(java.lang.String name,
             int numSets,
             int assoc,
             int lineSize)

Make a new cache with the given number of lines, associativity, and the given linesize. Parameters should be powers of two.

Method Detail

isHit

public boolean isHit(int addr)

Is the given address mapped in the cache?

read

public void read(int addr)

Do a read access of the cache.

write

public void write(int addr)

Implements a write-around policy on misses.

initialize

public void initialize()

dumpStats

public void dumpStats()

Dump the stats that have been collected thus far.