Asynchronous adress decoder

Well, below the line, you are right . . .

If you say that Quartus is building the same combinatorical logic for both designs then it should work because it worked in AHDL as expected (or better to say: with no recognizable sideeffects . . ). I was not quiet sure if it is the case that the synthezized logic is the same. At least, if I look into the RTL of both designs they look different.

But maybe here is a very experienced user who says: "Well, you can do it this way but I would recommend to do it in an other way because . . . "

Personally I wonder why it is designed in such an asynchronous way because I would prefer the synchronous way. On the other side I'm a little fearfull to change this because if I get additional wait states and maybe my whole project gets timing issues I don't understand. . .

Maik