override public Boolean Handle(CPUData systemData)
{
// Sets I to the address NNN.
systemData.IndexRegister = (ushort)(mOpCode & 0x0FFF);
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Sets I to the location of the sprite for the character in VX. Characters 0-F (in hexadecimal) are represented by a 4x5 font.
systemData.IndexRegister = (ushort)(systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] * 0x5);
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Sets the sound timer to VX.
systemData.SoundTimer = systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8];
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Sets VX to the value of the delay timer.
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = systemData.DelayTimer;
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Draws a sprite at coordinate (VX, VY) that has a width of 8 pixels and a height of N pixels.
// Each row of 8 pixels is read as bit-coded starting from memory location I; I value doesn’t change after the execution of this instruction.
// As described above, VF is set to 1 if any screen pixels are flipped from set to unset when the sprite is drawn, and to 0 if that doesn’t happen
// TODO: Must implement this after I have a solution to drawing
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Sets vX to the value of vY
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4];
//Jump to next Instr
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Returns from a Subroutine, Program Counter should increase
systemData.ProgramCounter = systemData.SystemStack.PopStack();
// Increment the program counter (2 bytes per instruction)
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// TODO: This instruction might be wrong and want vX on 0xF instead of vY and vX shifted into vX
// Shifts VY left by one and copies the result to VX. VF is set to the value of the most significant bit of VY before the shift.
systemData.CpuRegisters[0xF] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] >> 7);
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] << 1);
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Shifts VY right by one and stores the result to VX (VY remains unchanged).
// VF is set to the value of the least significant bit of VY before the shift
systemData.CpuRegisters[0xF] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] & 0x1);
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] >>= 1;
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Sets VX to the result of a bitwise AND operation on a random number (Typically: 0 to 255) and NN.
Random rand = new Random();
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = (Byte)((mOpCode & 0x00FF) & rand.Next(0, 255));
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Sets VX to NN
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = (Byte)(mOpCode & 0x00FF);
//Jump to next Instr
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Sets VX to VX AND VY. (Bitwise OR operation)
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] & systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8]);
//Jump to next Instr
systemData.ProgramCounter += 2;
return(true);
}
public static void cpuParser(ManagementObjectSearcher searcher)
{
CPUList myList = new CPUList();
foreach (ManagementObject queryObj in searcher.Get())
{
CPU currentItem = new CPU(queryObj);
myList.cpuList.Add(currentItem);
}
CPUData.EventHandler(myList);
}
public override void UpdateData()
{
//int currentsp = GetCpuClockSpeed();
//int loadPercentage = GetLoadPercentage();
CPUData cpuData = GetCPUData();
if ((cpuData.clockSpeed != -1) && cpuData.load != -1) //((currentsp != -1) && (loadPercentage != -1))
{
this.load.Data = ((float)cpuData.load) / 100f; //((float)loadPercentage) / 100f; //values between 0 and 1
this.frequency.Data = ((float)cpuData.clockSpeed) / 1000f; //((float)currentsp) / 1000f; //GHz
}
}
override public Boolean Handle(CPUData systemData)
{
// Calls subroutine at NNN
//Push current location on stack and jump to NNN
if (systemData.SystemStack.PushStack(systemData.ProgramCounter))
{
//Jump to NNN
systemData.ProgramCounter = (ushort)(mOpCode & 0x0FFF);
return(true);
}
// Stack Overflow, Fail
return(false);
}
override public Boolean Handle(CPUData systemData)
{
// Stores the binary-coded decimal representation of VX, with the most significant of three digits at the address in I,
// the middle digit at I plus 1, and the least significant digit at I plus 2.
// (In other words, take the decimal representation of VX, place the hundreds digit in memory at location in I,
// the tens digit at location I+1, and the ones digit at location I+2.)
systemData.SystemMemory[systemData.IndexRegister] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] / 100);
systemData.SystemMemory[systemData.IndexRegister + 1] = (Byte)((systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] / 10) % 10);
systemData.SystemMemory[systemData.IndexRegister + 2] = (Byte)((systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] % 100) % 10);
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Skips the next instruction if VX doesn't equal VY. (Usually the next instruction is a jump to skip a code block)
if (systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] != systemData.CpuRegisters[(mOpCode & 0x00F0)] >> 4)
{
systemData.ProgramCounter += 4;
}
else
{
systemData.ProgramCounter += 2;
}
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Fills V0 to VX (including VX) with values from memory starting at address I. I is increased by 1 for each value written.
for (int i = 0; i < ((mOpCode & 0x0F00) >> 8); i++)
{
systemData.CpuRegisters[i] = systemData.SystemMemory[systemData.IndexRegister + i];
}
systemData.ProgramCounter += 2;
//Move I to the end, not all emulators do this
//TODO: maybe remove this
systemData.IndexRegister += (ushort)(((mOpCode & 0x0F00) >> 8) + 1);
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Must shift 8 in CpuRegister to make if X instead of X0000000 for the index
//Skips the next instruction if vX == NN
if (systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] == (mOpCode & 0x00FF))
{
//Skip(4 bytes instead of 2)
systemData.ProgramCounter += 4;
return(true);
}
//Don't Skipp
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
//Must shift 8 in CpuRegister to make if X instead of X0000000 for the index
//Must shift 4 in 2nd CPURegister since we are pull one digit closeer to the right
//Skips the next instruction if vX == vY
if (systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] == systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4])
{
//Skip(4 bytes instead of 2)
systemData.ProgramCounter += 4;
return(true);
}
//Don't Skipp
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Adds VX to I.
// VF is set to 1 when range overflow (I+VX>0xFFF), and 0 when there isn't.
if (systemData.IndexRegister + systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] > 0xFFF)
{
systemData.CpuRegisters[0xF] = 1;
}
else
{
systemData.CpuRegisters[0xF] = 0;
}
//Add..
systemData.IndexRegister += systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8];
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Sets VX to VY minus VX. VF is set to 0 when there's a borrow, and 1 when there isn't.
if (systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] > systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4])
{
// set the borrow here
systemData.CpuRegisters[0xF] = 0;
}
else
{
//no borrow, continue on
systemData.CpuRegisters[0xF] = 1;
}
// subtract here
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] = (Byte)(systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] - systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8]);
systemData.ProgramCounter += 2;
return(true);
}
/// <summary>
/// Generates a random CPU item.
/// </summary>
/// <returns></returns>
public CPU LoadSingleItem()
{
CommonData commonData = new CommonData();
CPUData cpuData = new CPUData();
int brandIndex = Faker.Number.RandomNumber(0, cpuData.Brands.Count);
CPU cpu = new CPU();
cpu.Brand = cpuData.Brands[brandIndex];
cpu.Name = cpuData.Names[brandIndex][Faker.Number.RandomNumber(0, cpuData.Names[brandIndex].Count)];
cpu.Description = "Some CPU description";
cpu.Condition = commonData.Conditions[Faker.Number.RandomNumber(0, commonData.Conditions.Length)];
cpu.Stock = Faker.Number.RandomNumber(0, 51);
cpu.Price = Faker.Number.RandomNumber(30, 450);
cpu.SocketType = cpuData.Sockets[brandIndex][Faker.Number.RandomNumber(0, cpuData.Sockets[brandIndex].Count)];
cpu.CoresAmount = cpuData.CoresAmount[Faker.Number.RandomNumber(0, cpuData.CoresAmount.Length)];
cpu.Frequency = Faker.Number.RandomNumber(1, 5);
return(cpu);
}
override public Boolean Handle(CPUData systemData)
{
// VY is subtracted from VX. VF is set to 0 when there's a borrow, and 1 when there isn't
if (systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] > systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8])
{
// set the borrow here
systemData.CpuRegisters[0xF] = 0;
}
else
{
//no borrow, continue on
systemData.CpuRegisters[0xF] = 1;
}
// subtract here
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] -= systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4];
systemData.ProgramCounter += 2;
return(true);
}
override public Boolean Handle(CPUData systemData)
{
// Adds VY to VX. VF is set to 1 when there's a carry, and to 0 when there isn't.
//0xF(16) - Call location in memory
if (systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4] > (0xFF - systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8]))
{
//Set carry to 1
systemData.CpuRegisters[0xF] = 1;
}
else
{
//Set carry to 0
systemData.CpuRegisters[0xF] = 0;
}
//add the memory locations
systemData.CpuRegisters[(mOpCode & 0x0F00) >> 8] += systemData.CpuRegisters[(mOpCode & 0x00F0) >> 4];
systemData.ProgramCounter += 2;
return(true);
}
private CPUData GetCPUData()
{
CPUData cpuData = new CPUData();
try
{
foreach (ManagementObject queryObj in searcher.Get())
{
cpuData.clockSpeed = Convert.ToInt32(queryObj["CurrentClockSpeed"]);
cpuData.load = Convert.ToInt32(queryObj["LoadPercentage"]);
return(cpuData);
}
}
catch (Exception)
{
cpuData.load = -1;
cpuData.clockSpeed = -1;
return(cpuData);
}
cpuData.load = -1;
cpuData.clockSpeed = -1;
return(cpuData);
}
override public Boolean Handle(CPUData systemData)
{
return(true);
}
abstract public Boolean Handle(CPUData systemData);
private void ReportAppPerf()
{
WebRTC.UpdateCPUUsage(CPUData.GetCPUUsage());
WebRTC.UpdateMemUsage(MEMData.GetMEMUsage());
}
override public Boolean Handle(CPUData systemData)
{
// the next instruction if the key stored in VX isn't pressed. (Usually the next instruction is a jump to skip a code block)
// TODO: comeback to this once input is figured out
return(true);
}