CacheMMEmulator/Cache.java at main · shrncr/CacheMMEmulator · GitHub

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/*
 * fake cache
 * checks for instructions, brings blocks, clears, deletes blocks
 */
classCache {

privateNumb[][] cacheSpots; //2d array of the cache
privateString[] forOutp;
privatelongnumBlocks;
privatelongblockSize;

publicCache(intinstructionSize, intblocks){
numBlocks = blocks;
blockSize = instructionSize;
forOutp = newString[blocks];
cacheSpots = newNumb[blocks][instructionSize];
 }

publiclonggetBlockSize(){
return(this.blockSize);
 }

publiclonggetNumBlocks(){
returnthis.numBlocks;
 }

publicNumbgetCacheSpot(introw,intcol){ //i think i just used this for debugging
returncacheSpots[3][3];
 }

publicvoidbringBlock(intblock, Numb[] instructions, intblockOfMM){ //brings a block into mm
for (inti= 0;i<instructions.length;i++){ //populates the correct row of the 2d array of the cache w/ instructions
this.cacheSpots[block][i] = instructions[i];
 }
this.forOutp[block] = Integer.toString(blockOfMM); //updates which block is in the mm for the output
 }

publicbooleancheckForInstr(intpotentialBlock,intoffset,NumbspecInstr){
booleanthere = false; //to track if instr is in cache or not
if (this.cacheSpots[potentialBlock][offset] != null){ //if something is in this spot
if (this.cacheSpots[potentialBlock][offset].getNumber().equals(specInstr.getNumber())){ //if that "something" is the right instr
there = true;
 }
 }
returnthere;
 }
publicvoidclear(){
for (intb= 0;b<numBlocks;b++){
for (inti= 0;i<blockSize;i++){
cacheSpots[b][i] = null; //make entire 2d array NULLLLLL
 }
forOutp[b] = "---"; //changing how it appears in the output
 }
 }
publicvoiddeleteBlock(intblockNum){
for (inti= 0;i<blockSize;i++){ //deletes the block/row in the cache's 2d array which was meant to be deleted
this.cacheSpots[blockNum][i] = null;
 }
this.forOutp[blockNum] = "---"; //change how the output appears
 }

publicStringtoString(){ //for printing
StringtoRet = "";
for (Stringspot:forOutp){
if (!(spot == null)){
toRet += (spot + " ");
 }
else{
toRet += "____ ";
 }

 }
returntoRet;
 }
}