Below is a high$-$level state machine for a simple data encryption$/$decryption device. If a single$-$bit input b is $1,$ the device stores the data from a $32-$bit signed input I, referring to this as an offset value. If $b$ is $0$ and another single$-$bit input e is $1,$ then the device "encrypts" its input I by adding the stored offset value to I, and outputs this encrypted value over a $32-$bit signed output J$.$ If instead, another single$-$bit input $d$ is $1,$ the device "decrypts" the data on I by subtracting the offset value before outputting the decrypted value over $J.$

Inputs: I $(32$ bits$),b(bit).e(bit).d(bit)$

Outputs: $J(32$ bits$)$

Local registers: $of!$

Fill in the conditions.

and