$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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