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⌂ ∞ ▽ Elite on the 6502

Start and end: ResetOptions

[NES version, Bank 7]

       Name: ResetOptions                                            [Show more]
       Type: Subroutine
   Category: Start and end
    Summary: Reset the game options to their default values

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * SetupDemoUniverse calls ResetOptions
             * ShowStartScreen calls ResetOptions




.ResetOptions

 LDA #0                 ; Configure the controller y-axis to the default
 STA JSTGY              ; direction (i.e. not reversed) by setting JSTGY to 0

 STA disableMusic       ; Configure music to be enabled by default by setting
                        ; disableMusic to 0

 LDA #$FF               ; Configure damping to be enabled by default by setting
 STA DAMP               ; DAMP to $FF

 STA DNOIZ              ; Configure sound to be enabled by default by setting
                        ; DNOIZ to $FF

 RTS                    ; Return from the subroutine