Dataflow Modeling
Dataflow modeling using continuous assignment statements with the keyword assign. Dataflow modeling is used
mostly for describing the Boolean equations of combinational logic. Dataflow modeling of combinational logic uses
a number of operators that act on binary operands to produce a binary result. Table lists some of the operators,
their symbols, and the operation that they perform.
x
W
y
Z
Figure 1. The Combinational circuit.
f
Study
? Write the Verilog HDL description of the combinational logic circuit given in Figure 1 using Dataflow
Modeling Style.
? Simulate the behavior of described circuit, for every possible input combinations, i.e.; wxyz = 0000,
wxyz = 0001, wxyz = 0010, wxyz = 0011, ... wxyz = 1111. Click on the "Simulation" and add a test
fixture to the project.
