operation code 
noun Computing
The part of a machine code instruction that defines the operation to be performed.Send both numbers and the operation code to the execution unit.
- quadrantally
- quadrantanopia
- quadrantanopsia
- quadrant cell
- quadrant compass
- quadrant electrometer
- quadrantic
- Quadrantid
- Quadrantids
- quadrant method
- quadrant roller
- quadraphonic
- tiredly
- tiredness
- Tiree
- tire iron
- tireless
- tirelessly
- tirelessness
- Tiresias
- tiresome
- tiresomely
- tiresomeness
- Tirich Mir
- tiring