Radio Shack Telephone Interface II Manual

I
6. Logic
functions
)
I
These
functions
return
1
when
an
expression
composed
using
logic
operators
(-><>=<
=
and
<>
)
is
true,
and
when
false.
In
other
words,
xQyjo
is
a
logic
operator)
gives
us
either
a
1
or
a
depending
on the
relationship
of
x and
y.
'
x
Logic
operator
1
if
x=y.
if xl=y.
>•
<
=
1 if x>y
\f x<y
1
if
x<y
tf
x>y
1
if
x>y
if
jc
<y
1
if
x
<y
if
x>y
<>
1 if
x^y
if
x=y
Note:
<
>
has the
same
meaning
as
=£.
&
If
you
want
to
use
a
logical
expression
relating
to
contents
of
a
memory
(variable
name)
you
must
use
the
following
form:
<
expression
>
=
[memory/variable
name]
. If
you
use
[memory/
variable
name)
=
<
expression
)
the
Computer
will
treat
the
statement
as
a
normal
assignment
statement;
e.g.
A =
<
expression
>.
(Relational
equations
in IF
statements,
are
not
subject
to
this
exception;
i.e.
they
function
normally.)
Examples:
(5
+
8)>(3*4)
=
(24/5)<
=
(2.4*2)=
Operation
m3CS4CD
|
BITER
|
DD24
m
5
rn;iii^ir<ir^i
CD
2.4
[*D2m
[biter|
Display
(5
+
8)
>
_
(5
+
8)
>
(3*4)
_
(24/5)
<==_
(24/5)
<=
(2. 4*2)
1.
Note
Answer
Answer
Notes:
Logical
expressions
(AND)
and
(OR) can
be
executed
using
the
following
form
of
logical
computa-
tions.
(T)
Logical
OR
(logical
computation)
+
(logical
computation)
Example:
{A
<
0)
+
(A
>
8)
1
is
returned
if A
is
smaller
than
or
larger
than
8.
(B
> 0)
+
(C>
0)
1
is
returned
if
B
or C
is larger
than
and
2
is
returned
if
both B
and
C are
larger
than
0.
(2)
Logical
AND
(logical
computation)
*
(logical
computation)
Example:
(B
>
1) *
(B
<
6)
1
is
returned
if
B is
larger
than
1
and
smaller
than
6.
24

Radio Shack Telephone Interface II Specifications

General

Brand	Radio Shack
Model	Telephone Interface II
Category	Desktop
Language	English