, , . IBM PC Game port, . 4 (X1, X2, Y1 Y2), , 4 . . X1 -, Y1 -, X2 , Y2 . X1 , Y1 , X2 ( Y1). .
() USB -. , ( ).
Game- - 201h, . . . 8.19. , , ( , ). , . , , (. ), . (201h), 03 . 03, . GND , . -. 0-100
T()=24,2+11×R().
, ( 1,12 ) . - , .
. 8.19.
- DB-15S. . 8.20. +5 , GND (. 8.20). 57. , , GND, , + 5 . ( ) Y- -. Game MIDI-, -, (. . 8.18). MIDI 12 15, GND +5V. MIDI MIDI.
|
|
8.20. MIDI
7 | #2 | 14 |
6 | #1 | 10 |
5 | #2 | 7 |
4 | #1 | 2 |
3 | Y- (Y2) | 13 |
2 | X- (X2) | 11 |
1 | Y- (Y1) | 6 |
0 | X- (X1) | 3 |
- | GND | 4, 5, (12) |
- | +5 | 1, 8, 9, (15) |
- | MIDI In (Rx) ( ) | 15 |
- | MIDI Out (Tx) ( ) | 12 |
. 8.20.
BIOS Int 15h AH=84h. DX :
♦ DX=0 , AL[7:4] ( 201h);
♦ DX=1 X, Y ( , BX) ( , DX).
DX CF=1. Windows.
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