Graphics: SetColourToBlack

       Name: SetColourToBlack                                        [Show more]
       Type: Subroutine
   Category: Graphics
    Summary: Set a logical colour to black
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DrawCanopyView calls SetColourToBlack


 Arguments:

   X                    The logical colour to set to black


.SetColourToBlack

 LDY #0                 \ Set Y = 0 so we set the logical colour to physical
                        \ colour 7 (black)

                        \ Fall through into SetLogicalColour to set the logical
                        \ colour in X to black