50 lines
754 B
ArmAsm
50 lines
754 B
ArmAsm
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;
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; Implementation of SECOND command.
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; For detailed description see 'm65dos_bridge.s' file.
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;
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msg_SECOND:
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jsr dos_ENTER
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; First store the channel
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tay
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and #$0F ; support channels 0-15, like 1541 drive
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ldx IDX1_LISTENER
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bmi msg_SECOND_done ; do nothing if no listener
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sta XX_CHANNEL, x ; store channel
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; Determine command type
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tya
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and #$F0
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cmp #$F0
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beq msg_SECOND_OPEN
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cmp #$E0
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beq msg_SECOND_CLOSE
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; XXX provide implementation
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; FALLTROUGH
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msg_SECOND_done:
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jmp dos_EXIT
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msg_SECOND_OPEN:
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lda #$00
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sta XX_CMDFN_IDX, x ; reset the index to the command/filename
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ldx IDX2_LISTENER
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jmp (dos_cmd_OPEN_vectab, x)
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msg_SECOND_CLOSE:
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ldx IDX2_LISTENER
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jmp (dos_cmd_CLOSE_vectab, x)
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