# 0x8c -> 100011001 -> x⁰ + x⁴ + x⁵ + x⁸ boxwid = 0.5in; boxht = 0.5in; # Shift register and XOR taps right Start: arrow "" "x⁰" big big box "1" big big arrow "" "x¹" big big box "0" big big arrow "" "x²" big big box "0" big big arrow "" "x³" big big box "0" big big arrow Tap4: circle "+" big big arrow "" "x⁴" big big box "1" big big arrow Tap5: circle "+" big big arrow "" "x⁵" big big box "1" big big arrow "" "x⁶" big big box "0" big big arrow "" "x⁷" big big box "0" big big # Input arrow "" "x⁸" big big Input: circle "+" big big arrow <- from Input.s down line left "Input" big big "" # Feedback network FB: line from Input.n up \ then left until even with Start.start \ then to Start.start arrow <- from Tap4.n up until even with FB.n; dot arrow <- from Tap5.n up until even with FB.n; dot