public static void SetPCToAddressLatchAndFetchInstruction(Cpu cpu, IBus bus)
{
cpu.CpuState.PC = (ushort)(cpu.AddressLatchLow | (cpu.AddressLatchHigh << 8));
var instruction = bus.Read(cpu.CpuState.PC);
cpu.ExecuteInstruction(instruction);
}
public static void FetchInstruction(Cpu cpu, IBus bus)
{
if (cpu._nmi && cpu._nmiCycle != cpu._totalCycles - 1)
{
cpu.CheckForNmi();
}
else
{
var instruction = bus.Read(cpu.CpuState.PC);
cpu.ExecuteInstruction(instruction);
}
}
