public Interpreter(EmulatorState EmulatorState)
{
this.EmulatorState = EmulatorState;
this.Memory = EmulatorState.Memory;
this.Registers = EmulatorState.Registers;
this.Display = EmulatorState.Display;
this.Controller = EmulatorState.Controller;
this.Memory.WriteBytes(0, Digits);
}
public void Draw(Registers Registers, Memory Memory, ushort Address, int px, int py, int height)
{
//Console.WriteLine("----------");
//for (int y = 0; y < height; y++) {
// var Row = Memory.Read8((ushort)(Address + y));
// for (int x = 0; x < 8; x++) {
// var New = ((Row >> (x)) & 1) != 0;
// Console.Write(New ? "*" : ".");
// }
// Console.WriteLine();
//}
Registers.V[15] = 0;
for (int y = 0; y < height; y++) {
var Row = Memory.Read8((ushort)(Address + y));
for (int x = 0; x < 8; x++) {
var New = ((Row >> (7 - x)) & 1) != 0;
var Old = Get(px + x, py + y);
if (Old && New) Registers.V[15] = 1;
Set(px + x, py + y, Old ^ New);
}
}
}