Re: Help ME! Apple IIc

[dalloff@freenet.columbus.oh.us (Dave Althoff)]

PetScii (petscii@aol.com) wrote:
: >Well, as Dave Althoff explained, there is an "escape mode" in Applesoft,
: >which means that there are certain shortcuts available by pressing
: >Escape and another key.
: >
: >Escape-Escape: Clear screen, move cursor to top-left position
: >Escape-a:      Move cursor one position to the right

: right, but you have to wake up the 80-col card to make these work right?

: Do this by typing PR#3
: you should get the white square cursor as opposed to the grey checkerboard
: cursor...

Most of the escape-mode functions work equally well in 40-column or
80-column mode.  The notable exceptions are the 80-column firmware control
sequences such as esc-4, esc-8, and esc-^Q.  They are somewhat more
convenient in 80-column (or active-40) mode, as the 80-column firmware
changes the cursor to an inverse-+ when you are in the 'esc' mode.

Also, I believe the esc-esc sequence given earlier is incorrect.  On my
machines, esc-esc merely toggles between escape mode and normal mode.

In fact, the most basic escape key sequences 
          esc-D
  esc-A          esc-B
          esc-C           (I think I got those directions right)
will work on ANY Apple ][.

The second most basic sequences:
          esc-I
  esc-J          esc-K
          esc-M
will work on any Apple ][ with Autostart ROM or better, including
everything except the original Apple ][.  That one being the one with
Integer BASIC in ROM.

When the Apple ][e was introduced, two more arrow keys were added to the
keyboard, and that added four more escape sequences, ones which I very
seldom use:
          esc-^K
  esc-^H          esc-^U
          esc-^J

(recall the mappings for the various keys--
     TAB = ^I
Up Arrow = ^K
Dn Arrow = ^J
Lt Arrow = ^H
Rt Arrow = ^U
Open Apple is PB0
Solid Apple is PB1)

Another little pitfall with the 80-column display firmware.  Notice that
the --> key comes across as ^U?  It just so happens that if you print a
^U, it will shut off the 80-column firmware.  For some reason, I have had
the GET instruction return a CHR$(32) [space] instead of a CHR$(21) [^U]
when the 80-column firmware was active.  I'm not sure where it was getting
translated...

More, I am sure, than you ever wanted to know...

--Dave Althoff, ][.
  (happy that c.s.a2 is finally talking about something I know about!)
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