Final answer:
The student's query is about designing and verifying a floating-point adder in Verilog for IEEE 754 single-precision numbers along with a test bench. The design process involves several steps from decomposition of the IEEE 754 number to normalization of the result, with the test bench used to validate the design against various input scenarios on EdaPlayground.com.
Step-by-step explanation:
The problem presented involves using the Verilog hardware description language to design a floating-point (FP) adder that operates on single-precision IEEE 754 format numbers. In addition to the core functionality of adding two normalized numbers and outputting a normalized result, the request includes the creation of a test bench to verify the design and requests validation on the online simulator EdaPlayground.com.
Designing an FP adder requires several steps: decomposing the IEEE 754 representation into sign, exponent, and mantissa; aligning the operands based on the exponent values; performing the addition/subtraction of the mantissas; normalizing the result; and handling special cases such as overflow, underflow, and NaN (Not a Number) scenarios. The test bench should instantiate the adder, apply stimulus inputs, monitor the outputs, and validate them against expected results. Verification of the code is vital to ensure that the adder functions correctly under all possible input scenarios.
To craft the test bench, instantiate the FP adder module and apply different sets of normalized FP numbers as inputs. Monitor the outputs and check against the known correct results. By testing edge cases, as well as typical use cases, you can confirm the reliability and accuracy of the FP adder design.