To-do file for ZCN
------------------

Need zap files for spell and invaders!

`get' should be able to work with only one arg (the filename), such
that `get foo.com' is equivalent to `get 100 foo.com'.

`undel' command to undelete files. Should be able to make this an
external command, probably based on zdbe.

bbcbas's copy cursor should work for chars in range 128-255, or at the
very least the pound sign as that can be entered from the keyboard.

bbcbas should provide a *KEY for changing user areas (but would need
to deal with currently-open files possibly being in different areas!).

Consider changing bbcbas's copy cursor to beep and copy nothing if
char to copy is unrecognised (as on BBC). (Currently it copies a
space.)


[All things below this point are very unlikely to ever get done]

Turn UART (serial chip) off if it hasn't been used in a while, or
allow an option to explicitly turn the UART (well, the line driver
really) on/off. Currently, ZCN always has the driver on, which is
sensible in a CP/M system but probably runs the batteries down a
lot. :-(

Add redirection to files (pretty tricky, would probably take a fair
bit of memory, and I'm not convinced it's actually all that useful on
CP/M).

Fix any funcs that write to card to give error if it's r/o.

Update hardware details (e.g. sound) from nciospec.doc.
