Draw an ASM chart for the following: Assume three states (a, b, c) in the system with one input x and two registers R₁ and R₂. The circuit is initially in state a. If x = 0, the control goes from state a to state b and, clears registers R₁ to 0 and sets R₂ to 1, and then moves to state c. On the other hand if x = 1, the control goes to state c. In state c, R₁ is subtracted from R₂ and the result is stored in R₁. The control then moves back to state a and the process continues.