Out of Bounds Array Indexing
A combinational lookup table maps a 2-bit array index to a specific 2-bit configuration value. Hardware synthesis of an undersized array often results in out-of-bounds reads silently returning zero.
Expected behavior:
| Idx1 | Idx0 | Y1 | Y0 | |--------|--------|------|------| | 0 | 0 | 1 | 1 | | 0 | 1 | 1 | 0 | | 1 | 0 | 0 | 1 | | 1 | 1 | 1 | 1 |
Simulation shows Y1 = 0 and Y0 = 0 for input Idx1 = 1, Idx0 = 1. The highest index combination returns an invalid zero value. Inspect the circuit and correct the fault.
Constraints
- Only standard combinational logic gates are allowed.
- Do not add new input or output ports.
Topics
Solve this problem
Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.
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