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BBC Micro Elite

Utility routines: OSB

       Name: OSB                                               [View in context]
       Type: Subroutine
   Category: Utility routines
    Summary: A convenience routine for calling OSBYTE with Y = 0



.OSB

 LDY #0                 \ Call OSBYTE with Y = 0, returning from the subroutine
 JMP OSBYTE             \ using a tail call (so we can call OSB to call OSBYTE
                        \ for when we know we want Y set to 0)