A ref keyword is used to pass arguments by reference to a function instead of a value. The subroutine/function shares the reference handle with the caller to access values. This is an efficient way of passing arguments like class objects or arrays of objects where
40. What is GLS and why is it important? GLS is an acronym for “Gate Level Simulation”. Gate Level Simulations are run after RTL code is synthesized into Gate Level Netlist. GLS forms an important part of the Verification lifecycle. It is required in addition to static verification tools like STA (Static Timing Analysis) and LEC (Logical Equivalence Checking) as STA and LEC don’t cover/report all issues. Majorly, GLS is used to:
in the example below, we have a struct defined called instruction_s that groups a 24 bit address field and an 8 bit opcode field.
These are a few SV Interview Questions that will help you to crack interviews at entry-level and my other blog posts cover most of the fundamentals you can refer to those for more knowledge.
the port names and connections. In addition to connectivity, functionality can also be abstracted in an interface as it supports defining functions that can be called by instantiating design for communication. Interfaces also support procedural ( always/initial blocks) and continuous assignments which are useful for verification in terms of adding protocol checks and assertions.
Why Are You Interested in This Role?
I have been working in the chip industry for over ten years and have all it takes to succeed in this role. This job’s description further fits my expertise. I have also always wanted to work for your company since my internship days, and therefore, it will be an honor if given a chance to do so.
Mention the Difference Between a Virtual and Pure Virtual Function in System Verilog
A virtual function allows the overriding of implementation of a function in a given derived class. Therefore, the base class doesn’t need to implement the virtual function. 0n the other hand, a pure virtual function only has the declaration and lacks any implementation. Therefore, any derivative class must implement the function.
What is the use of assertions in SV?
What is the difference between bit 7 0 and byte in SV?
What is SVA in verification?
What is assertion in verification?