Personally I am willing to let everybody who meets the requirement
-- and is willing to do the work -- have a go in this course.
Thus it is crucial that you start to do the assignments immediately,
if you want to have a chance to be enrolled in this course.
If you miss out on the first few assignments, I take this as a sign
that you have decided to take CS184 in another semester.
The admission process should be concluded during the third week
of the semester.
The CS enrollment policy is described in one of the CS Division Web
pages:
http://www.cs.berkeley.edu/~msasson/enrollment.html
Useful information regarding the current procedures can also be found
here:
http://www.cs.berkeley.edu/Scheduling/faq.shtml