public FrameSet()
{
for(int i = 0;i<Memory.frameSetSize;i++)
{
frames[i] = new Frame();
}
}
public void printCache(Frame[] cache)
{
if (BlockHolds1)
{
if (DirectCache)
{
Console.WriteLine("Frame Tag Value Dirty Empty");
for (int i = 0; i < cacheSize; i++)
{
Console.WriteLine(i + " " + cache[i].tag + " " + cache[i].value + " " + cache[i].dirty + " " + cache[i].empty);
}
}
else // 2-way set
{
Console.WriteLine("Set Tag Value Dirty Empty");
for (int i = 0; i < numOfSets; i++)
{
Console.WriteLine(i + " " + cache2[i].frame1.tag + " " + cache2[i].frame1.value + " " + cache2[i].frame1.dirty + " " + cache2[i].frame1.empty);
Console.WriteLine(i + " " + cache2[i].frame2.tag + " " + cache2[i].frame2.value + " " + cache2[i].frame2.dirty + " " + cache2[i].frame2.empty);
}
}
}
else
{
if (DirectCache)
{
Console.WriteLine("Frame Tag Value1 Value2 Dirty Empty");
for (int i = 0; i < cacheSize; i++)
{
Console.WriteLine(i + " " + cache2B[i].tag + " " + cache2B[i].value[0] + " " + cache2B[i].value[1] + " " + cache2B[i].dirty + " " + cache2B[i].empty);
}
}
else // 2-way set
{
Console.WriteLine("Set Tag Value1 Value2 Dirty Empty");
for (int i = 0; i < numOfSets; i++)
{
Console.WriteLine(i + " " + cache22B[i].frame1.tag + " " + cache22B[i].frame1.value[0] + " " + cache22B[i].frame1.value[1] + " " + cache22B[i].frame1.dirty + " " + cache22B[i].frame1.empty);
Console.WriteLine(i + " " + cache22B[i].frame2.tag + " " + cache22B[i].frame2.value[0] + " " + cache22B[i].frame2.value[1] + " " + cache22B[i].frame2.dirty + " " + cache22B[i].frame2.empty);
}
}
}
}
public Set(Frame frame1, Frame frame2)
{
this.frame1 = frame1;
this.frame2 = frame2;
}
public void writeToMem(Frame replaceable, short address)
{
for (int i = 0; i < blockSize; i++)
{
stack[(address - (address % blockSize)) + i] = replaceable.data[i];
}
}
public short randomReplace(int setNum, Frame newFrame, short address)
{
Random rnd = new Random();
int randNum = rnd.Next(frameSetSize);
Frame replaceable = cache[setNum].frames[randNum];
if (replaceable.dirtyBit)
{
writeToMem(replaceable, (short)(replaceable.tag*blockSize));
}
cache[setNum].frames[randNum] = newFrame;
return newFrame.data[address % blockSize];
}
public short loadMemBlk(int setNum, short address)
{
int blkNum = getBlkNum(address);
Frame newFrame = new Frame();
newFrame.dirtyBit = false;
newFrame.tag = blkNum;
for (int i = 0; i < blockSize; i++)
{
newFrame.data[i] = stack[blkNum * blockSize + i];
}
int emptySpot = lookForEmptySpot(setNum);
//if there's an empty spot
if (emptySpot != -1)
{
cache[setNum].frames[emptySpot] = newFrame;
return newFrame.data[address % blockSize];
}
//no free spot
else
{
return randomReplace(setNum, newFrame, address);
}
}