src/800.c:func_80015760: score 23 (COUNT; mine 106 ins, target 106) — not yet
  register pairs (mine -> target, count): s5->s4 x5, s4->s3 x1
  replace mine[19:20] target[19:20]
       19  subu	s4,a1,v0                      | subu	s3,a1,v0
  replace mine[32:33] target[32:33]
       32  li	s5,8                            | li	s4,8
  replace mine[35:36] target[35:36]
       35  li	s5,8                            | li	s4,8
  replace mine[38:41] target[38:41]
       38  andi	v1,s5,0xff                    | andi	v1,s4,0xff
       39  li	s5,16                           | li	s4,16
       40  andi	v1,s5,0xff                    | andi	v1,s4,0xff
  insert  mine[49:49] target[49:50]
       49  --                                 | lui	s5,0x300
  delete  mine[53:55] target[54:54]
       53  lui	s3,0xff                        | --
       54  ori	s3,s3,0xffff                   | --
  replace mine[58:59] target[57:59]
       58  andi	v1,s4,0xffff                  | andi	v1,s3,0xffff
       59  --                                 | addu	s3,s4,s3
  replace mine[68:69] target[68:69]
       68  addu	s4,s5,s4                      | addiu	s2,s2,-1
  replace mine[75:76] target[75:77]
       75  addiu	s2,s2,-1                     | lui	v1,0xff
       76  --                                 | ori	v1,v1,0xffff
  insert  mine[80:80] target[81:82]
       80  --                                 | lw	v0,0(s8)
  replace mine[81:85] target[83:86]
       81  lw	v0,0(s8)                        | and	v0,v0,v1
       82  lui	a2,0x300                       | or	v0,v0,s5
       83  and	v0,v0,s3                       | and	v1,s1,v1
       84  or	v0,v0,a2                        | --
  replace mine[86:88] target[87:88]
       86  and	v0,s1,s3                       | addiu	s1,s1,16
       87  sw	v0,0(s8)                        | --
  replace mine[89:91] target[89:91]
       89  bnez	v0,3458 <func_80015760+0xe8>  | bnez	v0,3454 <func_80015760+0xe4>
       90  addiu	s1,s1,16                     | sw	v1,0(s8)
