Sep 13, 2015 · Verilog defines three different versions of case statement: case, casez, casex. This article explains their differences and when to use each of them.

Dec 19, 2015 · The key difference is when the case expression instr contains x or z values. Remember that both casex and casez look at both the case item and the case expression for x …

Oct 26, 2025 · Learn how to use the Verilog case statement for efficient conditional branching in digital circuit design. Covers syntax, casex vs casez, practical code examples, FSM …

This code demonstrates the difference between case, casez and casex. In the output, it can be seen that when the argument's value is X, the output due to the casex construct is 16, as it …

May 14, 2024 · Casez Bits with ‘z’ values in casez statements are either ignored or considered unimportant. In contrast, the bits with “x” values are utilized. Compared to if-else statements, …

Learn the difference between case, casex, and casez in SystemVerilog in under 60 seconds! 🧠 Perfect for students, digital designers, and anyone learning HDL. Understand how wildcard...

Trying to fully understand the difference between Verilog's abstraction levels, I got a description of each level, but I still can't get it in the game. For this case, I will paste some Verilog...

Aug 10, 2018 · You use casez to model don't care conditions with a ? in your case item. However, if you can move to SystemVerilog, the case inside statement is even better because it only …

In addition to the regular case statements, verilog provides two variations casez and casex. Before we try to understand casex and casez, we need to understand that there are 4 types of …

Jan 29, 2016 · For casex and casez, comparisons are performed using the identity operator === instead of equality ==. casex ignores any bit position containing an X or Z; casez only ignores …