On this page, I will introduce a 10 bits Shift Register.
The shift register is the register where the input data shifts by 1 bit every time the clock pulse inputs.

Pin lock isn't specified.
As the device, it deals with CPLD(XC9536-PC44).

Source code and Explanation Fitting report

Operating state table

Input	Output
CLK	Q9 - Q0
	Q0 = DIN Q1 = Q0 Q2 = Q1 Q3 = Q2 Q4 = Q3 Q5 = Q4 Q6 = Q5 Q7 = Q6 Q8 = Q7 Q9 = Q8