Radio Shack TRS-80 Model III - Page 207

BASIC
n
©
Moves the
cursor to the left
by n spaces . If no number
n is specified, the
cursor
moves
back
one space.
When the cursor moves to the
left, all characters
in its
'
'path"
are erased from the
display, but they
are not
deleted from the
program
line.
Using this in
conjunction with
D or K or
C
can give misleading
Video
Displays
of
your program lines.
So, be careful
using it! For example,
assuming
you've used
«Space-Bar
so that the Display shows:
100 FOR
1
=
1 TO 10«
type
8
and
hit the ©key
.
The
display will show something
like this
:
1
00
FOR
I
=
(will vary depending
on number of blanks
in
your line
100)
(SHIFT)
CD
Hitting
SHIFT and(T)keys
together
effects an escape from
any of the
Insert
subcommands:
X, I and H. After
escaping from an
Insert subcommand,
you'll still
be in
the Edit
Mode, and
the cursor will remain
in its current
position.
(Hitting
(ENTER) is another
way
to exit these Insert
subcommands).
L (List
Line)
When the
Computer
is in the Edit
Mode, and is not
currently
executing
one
of the
subcommands
below
,
hitting
L causes the remainder
of the
program
line to be
displayed
.
The cursor
drops down
to the
next line of the
Display ,
reprints the
current
line number,
and moves to the first
position
of the line.
For example,
when
the
Display shows
100»
hit
L (without hitting
(
ENTER) key) and line
1 00 will be displayed
:
100FORI
=
1TO10STEP.5:PR!NTI,l
[2,l [3:NEXT
100a
This
lets you look
at the line
in
its
current form
while you're
doing the
editing.
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