Difference between revisions of "Port"

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<br>
 
<br>
 
==  Port 4  ==
 
==  Port 4  ==
0 <br>
+
 
1 <br>
+
Port 4 has double duties and serve left controller
2 <br>
+
as well as horizontal video position.
3 <br>
+
 
4 <br>
+
0 Left controller right<br>
5 <br>
+
1 Left controller left<br>
6 <br>
+
2 Left controller down<br>
 +
3 Left controller forward<br>
 +
4 Left controller counter clockwise<br>
 +
5 Left controller clockwise<br>
 +
6 Left controller pull<br>
 +
7 Left controller push<br>
 +
 
 +
Also:
 +
 
 +
0 Video Select <br>
 +
1 Video Horizontal A<br>
 +
2 Video Horizontal B<br>
 +
3 Video Horizontal C<br>
 +
4 Video Horizontal D<br>
 +
5 Video Horizontal E<br>
 +
6 Video Horizontal F<br>
 
7 <br>
 
7 <br>
 +
 
<br>
 
<br>
 +
 
==  Port 5  ==
 
==  Port 5  ==
 
0 Video Vertical A<br>
 
0 Video Vertical A<br>

Revision as of 18:00, 17 November 2012

The VES has four usable 8-bit data ports in the console, port 0 and 1 that are in the 3850 CPU and port 4 and 5 on one of the 3851 Program Storage Units. These I/O:s are hooked to specific functions as shown in the table below.

Port 0

0 TIME console button
1 MODE console button
2 HOLD console button
3 START console button
4 - not connected -
5 ARM (sound/graphics)
6 Enable in-signal from controllers
7 - not connected -

Port 1

0
1
2
3
4
5
6
7

Port 4

Port 4 has double duties and serve left controller as well as horizontal video position.

0 Left controller right
1 Left controller left
2 Left controller down
3 Left controller forward
4 Left controller counter clockwise
5 Left controller clockwise
6 Left controller pull
7 Left controller push

Also:

0 Video Select
1 Video Horizontal A
2 Video Horizontal B
3 Video Horizontal C
4 Video Horizontal D
5 Video Horizontal E
6 Video Horizontal F
7


Port 5

0 Video Vertical A
1 Video Vertical B
2 Video Vertical C
3 Video Vertical D
4 Video Vertical E
5 Video Vertical F
6 Tone AN (beep sound)
7 Tone BN (beep sound)