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Q141FreeSystemVerilog

Decode Z wildcards without hiding X

Difficulty
Easy
Topic
RTL Design
Language
SV
Interview prompt

Question

A decoder uses Z or ? wildcard bits in case items. It must keep X significant wherever the case item explicitly requires 0 or 1. Which case construct fits this comparison rule?

Choose one

Answer choices

  1. A. case
  2. B. casex
  3. C. casez
  4. D. if (selector)
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