PPU: SendDashImageToPPU

       Name: SendDashImageToPPU                                      [Show more]
       Type: Subroutine
   Category: PPU
    Summary: Unpack the dashboard image and send it to patterns 69 to 255 in
             pattern table 0 in the PPU
  Deep dive: Views and view types in NES Elite
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * ResetScreen calls SendDashImageToPPU
             * SendViewToPPU calls SendDashImageToPPU


.SendDashImageToPPU

 LDA #HI(16*69)         ; Set PPU_ADDR to the address of pattern 69 in pattern
 STA PPU_ADDR           ; table 0
 LDA #LO(16*69)
 STA PPU_ADDR

 LDA #HI(dashImage)     ; Set V(1 0) = dashImage
 STA V+1                ;
 LDA #LO(dashImage)     ; So we can unpack the image data for the dashboard into
 STA V                  ; into patterns 69 to 255 in pattern table 0

 JMP UnpackToPPU        ; Unpack the image data to the PPU, returning from the
                        ; subroutine using a tail call