$D313/54035:   Close all channels of other drives

D313: A9 0E     LDA #$0E
D315: 85 83     STA $83
D317: A6 83     LDX $83
D319: BD 2B 02  LDA $022B,X
D31C: C9 FF     CMP #$FF
D31E: F0 14     BEQ $D334
D320: 29 3F     AND #$3F
D322: 85 82     STA $82
D324: 20 93 DF  JSR $DF93
D327: AA        TAX
D328: BD 5B 02  LDA $025B,X
D32B: 29 01     AND #$01
D32D: C5 7F     CMP $7F
D32F: D0 03     BNE $D334
D331: 20 27 D2  JSR $D227
D334: C6 83     DEC $83
D336: 10 DF     BPL $D317
D338: 60        RTS

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