Chapter 10: SIMULATION

## 10-9: Documenting the Netlist (ALS)

The designer can document a netlist by inserting comments that begin with the # character. The parser will ignore the rest of the input line when it encounters this symbol. An example illustrating the use of comments is shown below:

       # Circuit: RS Latch  #
       #### Model description for the RS latch ####
       model main(set, reset, q, q_bar)  inst1: nor2(reset, q_bar, q)
       inst2: nor2(q, set, q_bar)
       #### Description for 2 input NOR gate ####
       gate nor2(in1,in2,out)
       t: delta=4.5e-9 + linear=5.0e-10  # Timing Parameters
       i: in1=L in2=L  o: out=H@2
       i: in1=H        o: out=L@2        # Truth Table Entries
       i: in2=H        o: out=L@2
       i:              o: out=X@2
       load in1=1.5 in2=1.5              # Loading Declaration

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