| ei || 11111011 || 1 || 4 (4) || - || - || - || - || - || - || - || - || iff1 := 1, iff2 := 1 after the next instruction || Enable Interrupts
|-
| im m || 11101101 01mmm110 || 2 || 8 (4,4) || - || - || - || - || - || - || - || - || mode 0im : execute instruction on bus = m ||rowspan=3|Set Interrupt Mode
mmm: 000=0, 001=0, 010=1, 011=2, 100=0, 101=0, 110=1, 111=2
|-