Atari 800

The line delete function
ff
6EGEf:[EllGl
removes
one
whole logical
line. lf
there
are lines
below
the
deleted one they will all
move up one
line
leaving
a
blank
line
at the
bottom of the
screen.
The character
delete
fucntion
![!
lt'lfilfftlltl
erases
the character
under
the cursor
by
moving
all
the
characters
to the
right of
the cursor
one space
to the
left.
EEEgEBEEBOBEgffi@
5ntr@EEEOOOOtrEg@
ETtrtrOtrtrtrOtrtrEBBB
EBEgOtrtr@EEEAE
The
keys
shown
in
red in
the
diagram
above have
functions not
found on an
ordinary typewriter.
The
@!t
key disables the
cursor control
movements and
prints
a
graphic
character
instead.
For example,
press
ff,,
then
hold down
[[!
@@
@
@
@
@
PUSH
SIMULTANEOUSLY
:.Et
,
g
,:.':B'
E
.tt@
@
.fifflrrrtidrE{
I
,
fltErf,il
E,L?tr??,w.q
:,
llw
.
while typinc
[[[[f!!st
lnstead of the
text
moving to
the
left
you
will see
graphics.
This func-
tion
will
prove
very useful
when
you
begin to
pro-
gram in BASIC.
The
other characters
produced
in
this
manner are:
into their
!S!
characters.
You
will find this
feature useful
when creating
pictures
with
the
graphic
characters.
The
E
key switches
characters
into
inverse
video.
Press it
again to
go
back to
normal
display.
Gt!!t!L
interrupts
the computer
while
it is busy
following
instructions.
Refer to
the cartridge
in-
struction
sheet
for its
exact
f
unction.
FIRST
PUSH
@
@
@
@
@
@
@
@
@
@
@
GEE ..
rrrir
t@,,.
EEE
"
GE[],''
@
,,.
EEI
,.
Glrir:
rm
-rmil
|!rit!..
The
E[[@[il
key allows
you
to change the
usage of the
@
and
![!
keys.
Hold down
f@
and then
press
IIEEEEEI
.
This will lock
all the alphabet
keys into upper case.
However,
those keys
which
show two
or
three
characters on
the
keytops remain unchanged.
Note
that this
is not
the
way
the
shift lock
works on an ordinary
typewriter.
To remove this upper
case lock
push
the
Etrs@Eil
key again.
Now
hold down the
key
and
pressE[EEIEEEI.
This will
lock
ALL keys