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Codiode/Problems/Combinational Logic

1-Bit Magnitude Comparator

EasyLogic CircuitBuild

Arithmetic logic units and sorting networks rely on magnitude comparison to evaluate conditions and route data. A 1-bit magnitude comparator forms the foundational cascadable slice for N-bit comparators by evaluating two single-bit inputs and asserting exactly one of three possible relationship states.

| A | B | A_gt_B | A_eq_B | A_lt_B | |-----|-----|----------|----------|----------| | 0 | 0 | 0 | 1 | 0 | | 0 | 1 | 0 | 0 | 1 | | 1 | 0 | 1 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 |

Constraints

  • Use only combinational logic gates.
  • Drive all three outputs simultaneously from the same input sources.

Topics

basic-gatescombinational-logiccomparators

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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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