64
IOUT@(OUT)
Outputs data
to
1/0
ports.
Format:
OUT @
<port
number>,
<numerical
data>
Abbreviated form:
OU.@
Explanation:
• Converts <numerical
data>
values
(0
- 255) to binary numbers and outputs to the
<port
number>
output port.
• From 0 to
127
($00 - $7F in hexadecimal), the
<port
number>
can
be
determined
freely. From
128
to
255
($FO
-
$80
in hexadecimal), tne use
is
exclusively as ports
for external devices.
• For control of peripheral devices, etc., data are output to 110 ports. Thus, if there
is
a mistake of the
<port
number>,
etc. by this OUT@ command, there
is
the
possibility that such a mistake
will
cause abnormal operation of the peripheral
equipment, etc.,
so
care must be taken
in
that regard.
Example:
1 0
FOR
1 =0
TO
20
20
C
=1
+32
30
GOSUB
"SUB"
40
NEXT
1
50
60
70
80
90
100
1 1 0
120
1
30
140
END
LABEL
"SUB"
1
NP@
$FE,
A
1 F
NOT
(A
AND
$ 0 D) =0
OUT@
$FF,C
OUT@
$FE,
$80
1
NP@
$FE,
A
1 F
NOT
(A
AND
$ 0 D)
=1
OUT@
$ F,E, 0
RE
T UR N
Reference:
INP@ (page
63)
THE
N
70
THEN
110
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