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Re: Wonderful ProDOS patch!

In article <2grk7i$1nvg@info2.rus.uni-stuttgart.de> zcaa1122@rpool2.rus.uni-stuttgart.de (Wulf Hofbauer) writes:

[...]
   CP/M is even more primitive than Apple DOS, but has a better machine
   language interface. [...]

No. Apple DOS 3.x consists of three modules, each with its own calling
interface and each built on top of the layer beneath it: The RWTS
(Read or Write a Track & Sector) containes the hardware drivers for
the (Disk II) disk drives, as its name implied. The File Manager
implements all the operations on files, managing the file system on
the drives and offers this functionality through a rich machine
language interface, which is superior to the one in CP/M (IMHO). The
third layer is the BASIC filing interface, also known as the Control-D
Interpreter, since it handles all the DOS commands on input or PRINTed
after an initial Ctrl-D and maps them onto appropriate File Manager
calls.


			  - Matthias Kapffer