di<sup>-2</sup> --> data_out?

[@940ns]   data_in --> data_in_buff  [==di<sup>0</sup>]    0x0400 [1.0]

[@1000ns]  data_in_buff --> del_1    [==di<sup>-1</sup>]   0x0400 [1.0]

[@1080ns]  del_1 --> del_2           [==di<sup>-1</sup>]   0x0400 [1.0]

           del_2 --> add2_lft                              0x0400 [1.0]
           del_6 --> add2_rgt                              0x0000 [0.0]
           add2_lft+add2_rgt --> add2_out                  0x0400 [1.0]
[@1100ns]  add2_out --> reg2         [==v2]                0x0400 [1.0]

           reg2 --> sub4_lft                               0x0400 [1.0]
           reg2/4 --> sub4_rgt                             0x0100 [0.25]
           sub4_lft-sub4_rgt --> sub4_out                  0x0300 [0.75]
[@1120ns]  sub4_out --> reg4         [==v7]                0x0300 [0.75]

           reg3 --> sub4_lft                               0x0000 [0.0]
           reg4 --> sub4_rgt                               0x0300 [0.75]
           sub4_lft-sub4_rgt --> sub4_out                  0xFD00 [-0.75]
[@1140ns]  sub4_out --> reg4         [==v9]                0xFD00 [-0.75]

           reg1 --> add1_lft                               0x0000 [0.0]
           reg4 --> add1_rgt                               0xFD00 [-0.75]
           add1_lft+add1_rgt --> add1_out                  0xFD00 [-0.75]
[@1160ns]  add1_out --> reg1         [==data_out]          0xFD00 [-0.75]

[@1180ns]  reg1 --> data_out                               0xFD00 [-0.75]