HIMEM
HIMEM
PRINT
HIMEM
42619
FUN
CTI 0
N:
Returns
the
address of
the
HIghest
byte of M E M ory used by BASIC,
(which
may
be
altered
by
the
MEMO
RY
command).
NOTE -BASIC
uses
only
the
first 64K of
the
memory.
Associated keywords: F
RE,
M E M 0 R
Y,
S Y M B 0
L,
S Y M B 0 L AFT E R
IF
I F <logical expression>
THE
N <option part>
[E
LSE <option part>]
10
MODE
1
20
x=CINT(RND*100)
30
PRINT
"Guess
my
number (0
to
100)"
40
INPUT
n
50
IF
,n<x
THEN
PRINT
n;"is
too
low.,,"
60
IF
n>x
THEN
PRINT
n;"istoo
high
..
,"
70
IF
n=x
THEN
80
ELSE
c=c+1:GOTO
40
80
PRINT
"Well
done,
you
got
it
in";
90
PRINT
c+1;"guesses!"
run
COMMAND:
Determines
whether
the
<logical expression> is
true,
in
which case
the
first <option part> is executed.
If
the
<logical expression> is false,
any
<option part>
specified
in
the
EL
SE clause
is
executed, otherwise BASIC passes onto
the
next
line.
I F
THE
N commands
may
be
nested
to
any
depth,
and
are
terminated
by end ofline.
Therefore
it
is NOT possible to
have
further
statements
which
are
independent of
the
I F
THE
N command, on
the
same
line.
Where
the
result
of
the
<logical expression>
requires
that
a line should be jumped to,
the
command
may
be given
as
either:
Examples
....
IF
.a
= 1
THE
N 1 00
.... or ....
IF
a=1
GOTO
100
.... or ....
IF
a=1
THEN
GOTO
100
Associated keywords:
EL
SE,
GOT
0,
THE
N
Chapter 3 Page
32
Complete
List
of Keywords
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