private static uint returnValueFromAddress(List <uint> args, FGMSECInstructionSet instrSet, Executable caller, out int shift)
{
uint data = 0x00;
shift = 0;
if (isRegister(args[0]))
{
data = instrSet.CPU.GetRegData(BitConverter.GetBytes(args[1])[3]);
}
else if (isPointer(args[0]))
{
List <uint> _args = new List <uint>();
for (int i = 1; i < args.Count; i++)
{
_args.Add(args[i]);
}
int addr = GetPointerAddress(_args, instrSet, caller, out shift);
data = (uint)caller.Memory.ReadInt32(addr);
}
else
{
throw new Exception("Cannot retrive value of one or more elements");
}
return(data);
}
private static int GetPointerAddress(List <uint> args, FGMSECInstructionSet instrSet, Executable caller, out int shift)
{
int addr = 0;
shift = 1;
if (isRegister(args[0]))
{
addr = (int)instrSet.CPU.GetRegData(BitConverter.GetBytes(args[1])[3]);
}
else if (isData(args[0]))
{
addr = (int)args[1];
}
else if (isPointer(args[0]))
{
List <uint> _args = new List <uint>();
for (int i = 1; i < args.Count; i++)
{
_args.Add(args[i]);
}
addr = caller.Memory.ReadInt32(GetPointerAddress(_args, instrSet, caller, out int addShift));
shift += addShift;
}
else
{
global::System.Console.WriteLine($"No way to set address found ({args[0]})");
addr = 0;
instrSet.CPU.SetRegData((byte)FGMSECpu.FGMSERegisters.C1, 0xFF00FFA1);
}
return(addr);
}