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Forums > C64 Coding > Stop drive error
2019-04-13 09:45
oziphantom

Registered: Oct 2014
Posts: 502
Stop drive error

What is the easiest way to stop the driver flickering its light post error, in code?
2019-04-13 09:53
tlr

Registered: Sep 2003
Posts: 1807
Reading the error channel I suppose.
2019-04-13 11:45
Krill

Registered: Apr 2002
Posts: 3082
Quoting tlr
Reading the error channel I suppose.
Indeed. From loader source:
            ; read error channel on active drive to stop potentially blinking error LED
            ldx #COMMAND_ERROR_CHANNEL
            jsr CHKIN
:           jsr READST
            bne :+
            jsr CHRIN
            jmp :-
:           lda #COMMAND_ERROR_CHANNEL
            jsr CLOSE
            jsr CLRCHN
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