cse378
Class MemorySystem

java.lang.Object
  cse378.MemorySystem

public class MemorySystem
extends java.lang.Object

Field Summary

(package private) static AbstractCache	DCache
(package private) static TLB	DTLB
(package private) static AbstractCache	ICache
(package private) static TLB	ITLB
(package private) static PageTable	pageTable

Constructor Summary

MemorySystem()

Method Summary

java.util.LinkedList<Status>	fetch(cse378.address.VirtualAddress vaddr) Send a request to fetch an instruction
java.lang.String	getStats()
void	initDCache(int lines, int sets, int blockSize)
void	initDTLB(int lines, int sets)
void	initICache(int lines, int sets, int blockSize)
void	initITLB(int lines, int sets)
void	initPageTable(int pages)
java.util.LinkedList<Status>	read(cse378.address.VirtualAddress vaddr) Send a request to read from memory
cse378.address.PhysicalPage	translate(TLB tlb, cse378.address.VirtualAddress vaddr, java.util.LinkedList<Status> statusList, boolean isStore) Perform address translatio
java.util.LinkedList<Status>	write(cse378.address.VirtualAddress vaddr) Send a request to write to memory

Methods inherited from class java.lang.Object

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

Field Detail

ICache

static AbstractCache ICache

DCache

static AbstractCache DCache

ITLB

static TLB ITLB

DTLB

static TLB DTLB

pageTable

static PageTable pageTable

Constructor Detail

MemorySystem

MemorySystem()

Method Detail

initPageTable

public void initPageTable(int pages)

initICache

public void initICache(int lines,
                       int sets,
                       int blockSize)

initDCache

public void initDCache(int lines,
                       int sets,
                       int blockSize)

initITLB

public void initITLB(int lines,
                     int sets)

initDTLB

public void initDTLB(int lines,
                     int sets)

translate

public cse378.address.PhysicalPage translate(TLB tlb,
                                             cse378.address.VirtualAddress vaddr,
                                             java.util.LinkedList<Status> statusList,
                                             boolean isStore)

Perform address translatio

Parameters:

tlb - TLB to use (ITLB or DTLB)

vaddr - VirtualAddress to translate

statusList - List of the statuses of your accesses

isStore - If a write is occurring on this address

Returns:

PhysicalPage for vaddr

fetch

public java.util.LinkedList<Status> fetch(cse378.address.VirtualAddress vaddr)

Send a request to fetch an instruction

Parameters:

vaddr - virtual address of the instruction

Returns:

Status of this attempt

read

public java.util.LinkedList<Status> read(cse378.address.VirtualAddress vaddr)

Send a request to read from memory

Parameters:

vaddr - virtual address of the instruction

Returns:

Status of this attempt

write

public java.util.LinkedList<Status> write(cse378.address.VirtualAddress vaddr)

Send a request to write to memory

Parameters:

vaddr - virtual address of the instruction

Returns:

Status of this attempt

getStats

public java.lang.String getStats()