Apple IIe - Page 86

86
Apple
lie
Users
Handbook
The
AUTO
command
is
generally
used
when
entering
programs.
This
saves
the
user
the
task
of
typing
every
line
number.
The
AUTO
command
is
ended
by pressing
Ctrl-X
and
typing
MAN.
Example
AUTO
30
AUTO
10,
5
The
first
command
will
generate
the
line
numbers
30, 40, 50,
and
so
on.
The
second
command
will
generate
the
line
numbers
10,
15, 20, 25,
30,
...
AUTO
is
not
available
in
Applesoft
BASIC.
•
Applesoft
CALL
•
Integer
The CALL
statement
is
used
to
execute
a
machine
language
subroutine
.
Configuration
CALL
expression
expression
evaluates
to
an
integer
between
-65535
and
+65535.
In
Integer
BASIC,
the
value
of
the
expression
must
be
an
integer
between
-32767
and
+32767.
The
expression
is
the
location
of
the
machine
language
sub-
routine.
In
Applesoft,
there
are
two
values
which
will
execute
the
same
machine
language
subroutine.
There
is
the
positive
address
and
the
negative address.
The
conversion
is
as
follows
:
positive address -
65536
=negative
address