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Course contents

  • How to Use This Puzzle Bank
  • SystemVerilog Language Puzzles25
  • Difficulty Guide
  • Full Topic Map
  • Interview-Day Tips
  • Study Route: One Week Before the Interview
  • Study Route: Two Weeks
  • Study Route: Four Weeks (Full Course)4
  • OOP & Testbench Puzzles25
  • Concurrency & Timing Puzzles25
  • Randomization & Constraint Puzzles25
  • SVA Assertion Puzzles25
    • Sequence Puzzles
    • Implication Puzzles
    • Temporal Corner Puzzles
    • Assertion Debug Puzzles
    • SVA Assertion Puzzles: Tricky Q&A
  • Functional Coverage Puzzles25
  • Logic & Aptitude Puzzles25
  • Scenario & Debug Puzzles25
  • UVM Testbench Puzzles25
  • Clock, Reset & CDC Puzzles25
  • Bus and Interface Protocol Puzzles25
  • Interview Prep: Puzzle Rounds7
  • DV Puzzle Cheatsheet
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←DV Interview Puzzles
  1. Topics
  2. DV Interview Puzzles
  3. SVA Assertion Puzzles
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    VLSI DV Interview PuzzlesAll levels

    SVA Assertion Puzzles

    24 interview-grade SVA puzzles focused on sequence composition, implication timing, vacuity traps, sampled-value corner cases, reset abort behavior, weak versus strong properties, first_match, and multiclock debugging.

    • 5topics
    • 25lessons

    Topics in this section

    1. 1Sequence Puzzles6 lessons
      • Exact Delay Then Bounded Hold
      • Goto Repetition With Sparse Events
      • Nonconsecutive Repetition [=2]
      • Sequence and Operator
      • first_match in an Antecedent
      • within Window Length Off-By-One
    2. 2Implication Puzzles6 lessons
      • Overlap vs Non-Overlap
      • Pure Vacuity
      • Chained Consequent With ##
      • Non-Overlapped Window
      • throughout in Consequent
      • OR Antecedent Trigger
    3. 3Temporal Corner Puzzles6 lessons
      • $past Startup History Hole
      • $rose Sampled on Clock Edge
      • $fell Is an Event, Not a Level
      • $stable Repeated Hold Check
      • $past After Reset Release
      • Vector $rose Sampling Trap
    4. 4Assertion Debug Puzzles6 lessons
      • disable iff Reset Glitch Hides a Lost Grant
      • Multiclock Ack Visibility
      • Weak vs Strong at End of Simulation
      • Overlapping Attempts Share One Grant
      • $rose Consumed During Reset
      • Intersect Requirement in Dual Checks
    5. 5SVA Assertion Puzzles: Tricky Q&A1 lesson

    What this section covers

    24 interview-grade SVA puzzles focused on sequence composition, implication timing, vacuity traps, sampled-value corner cases, reset abort behavior, weak versus strong properties, first_match, and multiclock debugging.

    Topics

    Diagram
    Sequence Puzzles — 6 puzzles
    Implication Puzzles — 6 puzzles
    Temporal Corner Puzzles — 6 puzzles
    Assertion Debug Puzzles — 6 puzzles

    How to practice

    1. Open each topic and attempt every puzzle cold, writing your predicted answer first.

    2. Only then read the step-by-step solution and confirm the exact answer.

    3. Re-read the 'why candidates get it wrong' note — that is the actual interview signal.

    4. Finish with the section Q&A to rehearse explaining the rule out loud.

    Related topics

    • VLSI DV Interview Puzzles hub

    PreviousNext: Sequence Puzzles

    Up next

    Up nextSequence Puzzles

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    See also

    • How to Use This Puzzle Bank
    • SystemVerilog Language Puzzles
    • Difficulty Guide