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14.5.3. Advanced Techniques
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14.5.3.1. Practical Design Examples
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Simple ALU Design
Verilog
Finite State Machine (FSM)
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8-to-1 Multiplexer - Both Styles
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14.5.3.2. Best Practices and Guidelines
General Best Practices
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Always include else or default to avoid latches
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Use case for state machines and decoders
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Use if/else for range checking and priority encoding
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Prefer casez over casex (casex masks X values)
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Always use begin-end for multiple statements
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Keep nesting levels reasonable (max 2-3 levels)
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Avoiding Latches
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Coding Style Guidelines
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14.5.3.3. Common Mistakes and Solutions
Mistake #1: Incomplete Case Statement
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Mistake #2: Missing begin-end
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Mistake #3: Using Assignments in Conditions
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Mistake #4: Overlapping case Items with casex
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