32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
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AST RESEARCH TECHNICAL BULLETIN TB-0036 7-25-84
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TESTING OF THE GAME PORT
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Depending on the version and type of IBM Diagnostics used to test
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AST multifunction boards, the game port is not always recognized.
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If the game port option is not recognized, or you're not able to
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add it to the IBM Diagnostics Table, an alternative method of
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testing is listed below.
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This program requires the use of BASICA.COM
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10 DEFINT A-Z : KEY OFF : CLS : STRIG ON : SCREEN 2
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20 PRINT "X1","Y1","S1";"S3"
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30 X1 = STICK(0) : Y1 = STICK(1)
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40 A = STRIG(0) : C = STRIG(5)
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50 LOCATE 3 : PRINT X1,Y1,A;C
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60 GOTO 30
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When running the above program, moving the joystick in the X-
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plane (left-right) causes a change in the "X1" readout displayed
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on monitor, while moving the joystick in the Y-plane (updown)
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causes a change in the "Y1" readout. Pressing the switch (either
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one or two, depending on your joystick) causes a change in the
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"S1" or "S3" readouts from 0 to -1. Note that, depending on the
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quality of your joystick, you may not be able to get a zero
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reading in the X and Y planes when running the program.
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