Show the ASM diagram for the controller of a system that has a 16-bit register, A, and a 4-bit register, N. When a signal of 1 appears on input line s, the register A is shifted right the number of places (0 to 15) as specified by N (with 0's put in the left bits). The register A can be shifted only one place at a time. The register N can be decremented (decreased by 1). When shifting is complete, a 1 is to appear on output line d for two clock periods