Screen buffer: StartScrollingView

       Name: StartScrollingView                                      [Show more]
       Type: Subroutine
   Category: Screen buffer
    Summary: Start a scroll process in the background by setting the number of
             scroll steps and the address to start copying new content from
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * PanLandscapeView calls StartScrollingView


.StartScrollingView

 STA numberOfScrolls    \ Store the number of scroll steps required in the
                        \ variable
                        \
                        \ When this variable is non-zero, the interrupt handler
                        \ will scroll the screen by this many steps in the
                        \ background

                        \ Fall through into SetBufferAddress to set the address
                        \ from which the interrupt handler should start fetching
                        \ new content to scroll onto the screen