a. What are the 3 types of Verilog modeling? b. Draw the equivalent circuit for given Verilog Code. module circuitl (x1, x2, x3, f); input x1, x2, x3; output f; not (notx1, x1); not (notx2, x2); not (notx3, x3); or (a, x1, x2, x3); or (b, notx1, notx2, x3); or (c, notx1, x2, notx3); or (d, x1, notx2, notx3); and (f, a, b, c, d); endmodule c. Differentiate between blocking and non-blocking assignment with simple example in Verilog?

(A) There are three main types of Verilog modeling:

Data Flow modeling:

This type of modeling describes the behavior of a design using a series of concurrent assignments that describe the flow of data between the design elements.

Behavioral modeling:

This type of modeling uses Verilog's programming constructs such as if-else statements, loops, and tasks to describe the behavior of a design in a high-level, algorithmic way.

Structural or Gate level modeling:

This type of modeling uses instances of pre-defined modules to describe the structure of a design, including the connections between the modules. The behavior of the design is then defined in terms of the behavior of the individual modules.

While the gate-level and dataflow modeling are used for combinatorial circuits, behavioral modeling is used for both sequential and combinatorial circuits.