Play Effect

801a1880: 3c03801b lui r3,0x801b
801a1884: 8c6363e8 lw r3,0x63e8(r3)             #   *0x801b63e8
801a1888: 34020001 ori r2,r0,0x0001             #   1
801a188c: 14620003 bne r3,r2,0x801a189c
801a1890: 34020002 ori r2,r0,0x0002             #   2
                                                #   if (*0x801b63e8 == 1) {
801a1894: 3c01801b lui r1,0x801b
801a1898: ac2263e8 sw r2,0x63e8(r1)             #       *0x801b63e8 = 2
                                                #   }
801a189c: 03e00008 jr r31
801a18a0: 00000000 nop