$D6D0/54992:   Transmit param to disk controller

D6D0: 20 93 DF  JSR $DF93
D6D3: 0A        ASL
D6D4: A8        TAY
D6D5: A5 80     LDA $80
D6D7: 99 06 00  STA $06,Y
D6DA: A5 81     LDA $81
D6DC: 99 07 00  STA $07,Y
D6DF: A5 7F     LDA $7F
D6E1: 0A        ASL
D6E2: AA        TAX
D6E3: 60        RTS

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