In P3 you design the one bit slice as you see it fit.
In P4 you design the same one bit slice using a different philosophy.
Although PLD E0320 can fit the design as specified, I want you to design
this circuit where output of one function is being fed as
input to the next function. Here is what I want you to do.
Take the same set of equations as in P3 and replace symbols
X, O2, O3, O4, and O5 by I1, I2, ..., I5, respectively, on the right
hand side only. Thus you will 7 equations for O1, ... O7 with 11 inputs,
A, B, C, f2, f1, f0, I1, I2, I3, I4, I5. Each equation here
is a two level circuit. This set of equations in implemented
using E0320. Create a block symbol for this.
Then draw a schematic using this symbol, and connect O1 to I1,
O2 to I2, ..., O5 to I5. Vary A, B, C, f2, f1, f0 as specified to
observe the waveforms.
I hope this makes sense now.
Sorry for the confusion.