Set Thread Task ID

#   ROUTINE: SET THREAD TASK ID
#       Parameters:
#           r4 = taskID

80149d48: 3c028017 lui r2,0x8017
80149d4c: 8c424038 lw r2,0x4038(r2)             #   ThreadID
80149d50: 00000000 nop
80149d54: 00021280 sll r2,r2,0x0a               #   ThreadID * sizeof(Thread)
80149d58: 3c018017 lui r1,0x8017
80149d5c: 00220821 addu r1,r1,r2
80149d60: ac2498b8 sw r4,-0x6748(r1)            #   thread.TaskID = taskID      // (Base pointer 0x801698b8 = 0x8016986c + 0x4c)
80149d64: 03e00008 jr r31
80149d68: 00000000 nop