$C688/50824: Copy filename to work buffer
Jump from $C672:
C688: 98 TYA ; buffer number
C689: 0A ASL
C68A: A8 TAY ; times 2 as pointer
C68B: B9 99 00 LDA $99,Y
C68E: 85 94 STA $94
C690: B9 9A 00 LDA $9A,Y ; buffer pointer after $94/$95
C693: 85 95 STA $95
C695: A0 00 LDY #$00
Jump from $C6A3:
C697: BD 00 02 LDA $0200,X ; transmit characters in buffer
C69A: 91 94 STA ($94),Y
C69C: C8 INY
C69D: F0 06 BEQ $C6A5 ; buffer already full?
C69F: E8 INX
C6A0: EC 76 02 CPX $0276
C6A3: 90 F2 BCC $C697
Jump from $C69D:
C6A5: 60 RTS
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