src/ov_SC04_011/ov_SC04_011_jr_80154C24.c:func_80157D20: score 9 (COUNT; mine 19 ins, target 21) — not yet
  register pairs (mine -> target, count): v0->s0 x2, s0->s1 x2, s1->s0 x1
  insert  mine[1:1] target[1:4]
        1  --                                 | sw	s1,20(sp)
        2  --                                 | move	s1,a0
        3  --                                 | sw	s0,16(sp)
  delete  mine[2:3] target[5:5]
        2  sw	s1,20(sp)                       | --
  replace mine[4:6] target[6:8]
        4  sw	s0,16(sp)                       | move	s0,a1
        5  sll	v0,s1,0x1                      | sll	s0,s0,0x1
  replace mine[7:8] target[9:10]
        7  addu	at,at,v0                      | addu	at,at,s0
  replace mine[10:11] target[12:13]
       10  move	a0,s0                         | move	a0,s1
  replace mine[12:13] target[14:15]
       12  move	a0,s0                         | move	a0,s1
