private bool SKP(ushort instruction)
{
var value = ParserFunctions.GetValue(instruction);
var x = ParserFunctions.GetX(instruction);
var key = Register[x];
switch (value)
{
case 0x9e:
if (keyboard.GetValue(key))
{
InstructionPointer += 2;
}
break;
case 0xa1:
if (!keyboard.GetValue(key))
{
InstructionPointer += 2;
break;
}
break;
default:
throw new InvalidOperationException();
}
return(false);
}