what the meaning of cycle in or1ksim

for example
  00002a50: d7e21fb4  l.sw -76(r2),r3 (executed) [cycle 4417245, #121308]
  00002a54: 18800004  l.movhi r4,0x4 (next insn)
            18800004  l.movhi r4,0x4 (executed) [cycle 4417265, #121309]

  why only a mov instruction use 20 cycles? i think this will only cost one cycle.

  thank you