YMF754 Datasheet, PDF (43/60 Pages) YAMAHA CORPORATION – DS-1E

YMF754
2-4. Joystick
Joystick Block is the port for connecting IBM compatible analog joystick.
The following shows the JSBase I/O map for Joystick.
JSBase (R/W)
Port
D7
D6
D5
D4
D3
D2
D1
D0
+0h
JBB2
JBB1
JAB2
JAB1
JBCY
JBCX
JACY
JACX
JACX...
JACY...
JBCX...
JBCY...
JAB1...
JAB2...
JBB1...
JBB2...
Joystick A, Coordinate X
Joystick A, Coordinate Y
Joystick B, Coordinate X
Joystick B, Coordinate Y
Joystick A, Button 1
Joystick A, Button 2
Joystick B, Button 1
Joystick B, Button 2
June 28, 1999
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