Not again! Mux8way16 this time

[The Gigabiter]

I have a problem AGAIN! Seems like muxes seem to trip me up, don't they! Especially the bigger ones, there are so many bleeping internal pins that I cannot stand it! And those blasted SEL lines...cussed old blighters! Whenever there's more than one, I get 'em confused. This is in the same vein as my topic "Where did I go wrong?" which is right below this one in the list. Ive checked the code for my Mux8way16 and there are NO duplicated internal things. And stay away from berating me/the way I see things for anything....someone whose username I cannot remember cut a little too close with his judgment and hurt my feelings.

Here is the parts section of my code. I didnt change anything else.
Mux16(a=a , b=b , sel=sel[0] , out=internal1 );
    Mux16(a=c , b=d , sel=sel[0] , out=internal2 );  
    Mux16(a=internal1 , b=internal2 , sel=sel[1] , out=final1 );
      Mux16(a=a , b=b , sel=sel[0] , out=internal3 );
    Mux16(a=c , b=d , sel=sel[0] , out=internal4 );  
    Mux16(a=internal3 , b=internal4 , sel=sel[1] , out=final2 );
    Mux16(a=final1 , b=final2 , sel=sel[2] , out=out );

[WBahn]

You can certainly implement an 8Way mux using nothing by 2Way muxes, but it defeats the purpose of walking your way up the levels of abstraction. This will REALLY come back to bite you when you start implementing the RAM chips in Chapter 3. You will start by implementing a 1 bit memory cell and use that as your building block to eventually implement a memory with 262,144 bits. You do NOT want to keep going back and using small building blocks at each step. You want to use the largest blocks you have in order to make a new block that is a step up in size, and then use that one to step up again.

The authors had you implement a 4Way mux for a reason. It's because it makes implementing an 8Way mux extremely simple -- the HDL code for the 8Way mux will look almost the same as the code for the 4 Way, including the same number of parts (namely three).

As before, to find out where your implementation is going awry, you need to look at your code for what is actually there. Draw a schematic that matches the code. There are four glaring errors that should jump out at you immediately if you do that.

Hint: According to your code, what value of 'sel' is needed to get input 'g' to appear at the output?

[The Gigabiter]

I found out that I had had some inputs wired wrong. Fixed em aaaaaaaaaand still getting compare failures.

[The Gigabiter]

PROBLEM SOLVED now working on DMux4way

[The Gigabiter]

I finished that..and Dmux4way and Dmux8way...I submitted Project 1