13 lines
330 B
ArmAsm
13 lines
330 B
ArmAsm
; Function defined on pp272-273 of C64 Programmers Reference Guide
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tksa:
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;; This routine is documented in 'C64 Programmer's Reference Guide', page 302 and
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;; https://www.pagetable.com/?p=1031, , https://github.com/mist64/cbmbus_doc
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ora #$F0
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jsr iec_tx_command
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bcs tksa_error
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jmp iec_turnaround_to_listen
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tksa_error:
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rts
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