public LruStrategy(IPhysicalMemory physicalMemory)
{
if (physicalMemory.Any(f => !(f is IFrameWithTimeStamps)))
{
throw new Exception("bad frame type");
}
_physicalMemory = physicalMemory;
}
public FifoStrategy(IPhysicalMemory physicalMemory)
{
foreach (var frame in physicalMemory)
{
_frameGuidList.Add(frame.Id);
}
_enumerator = RepeatForever(_frameGuidList).GetEnumerator();
}
public ALruStrategy(IPhysicalMemory physicalMemory)
{
foreach (var frame in physicalMemory)
{
if (!(frame is IFrameWithMarker))
{
throw new Exception("bad frame type");
}
_queue.Add(frame);
}
}
public void ProcessAll()
{
_physicalMemory = _physicalMemoryFactory.Create(FrameList);
_virtualMemory = _virtualMemoryFactory.Create(PageList);
Process.PhysicalMemory = _physicalMemory;
Process.VirtualMemory = _virtualMemory;
while (Process.HasNextPageToLoad)
{
Process.LoadNextPage();
}
StrategyName = Process.ToString();
PageErrors = Process.PagesErrors;
}
/// <summary>
/// Decodes the instruction in physical memory at the given address.
/// </summary>
/// <param name="mem"></param>
/// <param name="address"></param>
public Instruction(IPhysicalMemory mem, uint address)
{
//
// Read the first halfword of the instruction in, determine its type and see if we need go further.
//
ushort hword = mem.ReadHalfWord(address);
Op = (Opcode)(hword >> 8);
Rx = (hword & 0xf0) >> 4;
Ry = hword & 0xf;
if ((hword & 0x8000) != 0)
{
//
// This is a memory reference instruction.
// Is this a short or long displacement instruction?
//
if ((hword & 0x1000) != 0)
{
Displacement = (int)mem.ReadWord(address + 2);
Length = 6;
}
else
{
Displacement = (short)mem.ReadHalfWord(address + 2);
Length = 4;
}
// Compute the displacement address (PC + Displacement) for branches.
// The LSB is used for branch prediction logic
BranchAddress = (uint)((address + Displacement) & 0xfffffffe);
}
else
{
Length = 2;
}
}
public FDLP(IPhysicalMemory mem, Processor cpu)
{
_mem = mem;
_cpu = cpu;
}
public OptStrategy(IPhysicalMemory physicalMemory, List <IPageReference> pageReferences)
{
_physicalMemory = physicalMemory;
_pageReferences = pageReferences;
}
public Processor(IPhysicalMemory mem, IOBus io)
{
_mem = mem;
_io = io;
}
public RandomStrategy(IPhysicalMemory physicalMemory)
{
_frames = physicalMemory.ToList();
}
