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⌂ ∞ Elite on the BBC Micro and NES

Icon bar: SetIconBarButtons

[NES version, Bank 3]

       Name: SetIconBarButtons                                       [Show more]
       Type: Subroutine
   Category: Icon bar
    Summary: Set the correct list of button numbers for the icon bar

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * SetIconBarButtonsS calls SetIconBarButtons
             * SetupIconBarDocked calls SetIconBarButtons




.SetIconBarButtons

 SETUP_PPU_FOR_ICON_BAR ; If the PPU has started drawing the icon bar, configure
                        ; the PPU to use nametable 0 and pattern table 0

 LDA iconBarType        ; Set barButtons(1 0) = iconBarButtons
 ASL A                  ;                       + iconBarType * 16
 ASL A                  ;
 ASL A                  ; So barButtons(1 0) points to list of button numbers in
 ASL A                  ; the iconBarButtons table for this icon bar type
 ADC #LO(iconBarButtons)
 STA barButtons
 LDA #HI(iconBarButtons)
 ADC #0
 STA barButtons+1

 RTS                    ; Return from the subroutine