public static bool F_RET()
{
CPU.MoveProgramCounter(CPU.PopStack());
// skips the call fuction it goes back to
CPU.StepProgramCounter(I_CALL.Arguments);
return(true);
}
public static bool F_JUMP()
{
byte left = Memory.Read((ushort)(CPU.ProgCtr + 1));
byte right = Memory.Read((ushort)(CPU.ProgCtr + 2));
CPU.MoveProgramCounter(BytesToAddress(left, right));
return(true);
}
public static bool F_CALLI()
{
byte left = Memory.Read((ushort)(CPU.ProgCtr + 1));
byte right = Memory.Read((ushort)(CPU.ProgCtr + 2));
CPU.PushStack(CPU.ProgCtr);
CPU.MoveProgramCounter(CPU.I);
return(true);
}
public static bool F_JUMPI()
{
CPU.MoveProgramCounter(CPU.I);
return(true);
}