Init:     ; 
   LDA #$11    ;\  BG1, OBJ on main screen (TM)
   STA $212C   ; | 
   LDA #$01    ; | BG1 on main screen should use windowing. (TMW)
   STA $212E   ;/  
   LDA #$06    ;\  BG2, BG3 on sub screen (TS)
   STA $212D   ; | 
   LDA #$16    ; | BG2, BG3, OBJ on sub screen should use windowing. (TSW)
   STA $212F   ;/  
   LDA #$31    ; BG1, OBJ, Backdrop for color math
   STA $40     ; mirror of $2131
   LDA #$02    ;\  Clip to black: Never, Prevent colot math: Never
   STA $44     ;/  Add subscreen instead of fixed color: True
   RTL

back to listings