Build a Half Subtractor
Arithmetic logic units calculate relative offsets, address decrements, and error bounds using binary subtraction. The core arithmetic element calculates the difference between a minuend bit A and a subtrahend bit B, asserting a borrow out signal when the subtrahend is larger.
| A | B | Diff | Bout | |-----|-----|--------|--------| | 0 | 0 | 0 | 0 | | 0 | 1 | 1 | 1 | | 1 | 0 | 1 | 0 | | 1 | 1 | 0 | 0 |
Constraints
- Implement using combinational logic only.
- Use basic logic gates. Do not use high-level arithmetic blocks.
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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