!lm12
!rm73
Commented Listing of DOS 3.2.1 RWTS

I promised in the original AAL flyer that I would print dis-assemblies of things like DOS.  Here is the first installment.  RWTS is described in some detail in the DOS Reference Manual, pages 94-98.

There are not too many differences between the various versions of RWTS.  Each one, from 3.1 to 3.2 to 3.2.1 to 3.3, seems mainly to clean up errors of the previous ones.  I will probably print some DOS 3.3 listings in the future, as well as more of 3.2.1.

There is a bug in the 3.2.1 version (a bad address), at line 2200.  It works anyway, but it is sloppy.  Another problem I have discovered the hard way:  the "previous slot #" in the IOB should be a slot that has a disk controller in it.  If not, RWTS may do strange things to whatever is in that slot.  I put in "0", and it turned on my language card!  Zap!  No more Applesoft!
