Master uP Initialization Routine

[Ulibrium]

What's all of this:

tempA CON c_p3_x <<1 + c_p4_x <<1 + c_p1_x <<1 + c_p2_x <<1 + c_rc_swB
dataInitA CON tempA <<1 + c_rc_swA <<1 + c_oi_swB <<1 + c_oi_swA
tempB CON c_sensor4 <<1 + c_sensor3 <<1 + c_p1_y <<1 + c_p2_y <<1 + c_sensor2
dataInitB CON tempB <<1 + c_sensor1 <<1 + c_packet_num <<1 + c_PB_mode
tempC CON c_batt_volt <<1 + c_sensor7 <<1 + c_p1_wheel <<1 + c_p2_wheel <<1 + c_sensor6
dataInitC CON tempC <<1 + c_sensor5 <<1 + c_p3_y <<1 + c_p4_y
tempD CON c_res01 <<1 + c_delta_t <<1 + c_p3_aux <<1 + c_p4_aux <<1 + c_p1_aux
dataInitD CON tempD <<1 + c_p2_aux <<1 + c_p3_wheel <<1 + c_p4_wheel

Output COMA
low COMA
low COMB
Wait_init: if IN3 = 1 then Wait_init:
Shiftout COMB,COMA,1, [dataInitA,dataInitB,dataInitC,dataInitD,dataInitVo lt]
Input COMA
high COMB

Does it actually effect the I/O processor? Let's say I keep all the c_constants 0... does it make a difference? Does it have an effect on the order of variables that the SERIN command takes?