1. Draw the Block Diagram, VHDL code and truth table for the following using process and if statements. a. OR Gate b. 2 Input Comparator c. 1 of 4 decoder d. 2 bit adder e. JK Flip flops 2. The following VHDL code fragment contains erroneous syntax. Re-write the code in its corrected format .Draw the block diagram and truth table. Describe the operation of the circuit described by the code.