$D6D0/54992: Transmit param to disk controller
Jump from $D09B, $D0BA, $D186, $D1BE, $DCE2, $DE7F, $E3B9, $E3CB:
D6D0: 20 93 DF JSR $DF93 ; get buffer number
Jump from $C8D7, $D03A, $D46D, $DC8F, $DD2E, $DF3D:
D6D3: 0A ASL
D6D4: A8 TAY
D6D5: A5 80 LDA $80 ; track number
D6D7: 99 06 00 STA $06,Y ; transmit
D6DA: A5 81 LDA $81 ; sector number
D6DC: 99 07 00 STA $07,Y ; transmit
D6DF: A5 7F LDA $7F ; drive number
D6E1: 0A ASL ; times 2
D6E2: AA TAX
D6E3: 60 RTS
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