Carry Logic
Each CLB contains dedicated arithmetic logic for fast carry and borrow signals
- Carry logic is associated with F and G function generators
Carry logic components have a vertical orientation
- Needed for speed and utilization
- Known as RPM or “Relationally Placed Macro”
- Examples:
- ADDx adders
- ADSUx adder/subtractors
- CCx counters
- COMPMCx magnitude comparators