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Apple IIe
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Apple
BASIC Reference
Guide
111
Example
HIMEM:
33024
The
preceding
example
sets
high
memory
to
memory
address
33024.
Variable and string storage
will
begin at this address and
extend
downward
into
memory.
Applesoft
HUN
Integer
HLIN
is
used
in
the
low
resolution
graphics
mode
to
draw
a
horizontal
line
on
the
screen.
Configuration
HLIN
column
1,
column
2 AT row
column
1,
column
2,
and row can be
either
numeric
constants
or
numeric
expressions.
column
1 and
column
2 must
lie
in
the
range
of
0
to
39.
Also,
the
value
of
column
1
mt1st
be
less
than
or
equal
to
column
2.
Row must lie in
the
range
of
0
to
47.
If
an
incorrect
value
is
used
for
column
1,
column
2,
or
row,
the
following
error
message
will
be displayed:
ILLEGAL
QUANTITY
ERROR
If
H LIN
is
executed
in
the
text
mode,
a
Ii
ne
of
characters
rather
than graphics
points
will
be displayed. Also,
if
the
low
resolution
graphics
mode
with
the
text
mode
is
active, and
HLIN
plots
to
rows
42
to
47,
a
line
of
characters
will
be displayed.
Example
10 GR
20
COLOR=
3
30
HLIN0,39AT20
40
END
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