! Instruction !! Opcode !! Cycles !! S !! Z !! X !! H !! Y !! P !! N !! C !! Effect !! Description
|-
| neg || 11101101 01***100 || 8 || + || + || + || + || + || V || 1 || + || a := 0 - a|| Negate
|-
| nop || 00000000 || 4 || - || - || - || - || - || - || - || - || nothing||No Operation
|}