Drawing planets: PLS2 (Disc version)

       Name: PLS2                                              [View in context]
       Type: Subroutine
   Category: Drawing planets
    Summary: Draw a half-circle


 Draw a half-circle, used for the planet's equator and meridian.


.PLS2

 LDA #31                \ Set TGT = 31, so we only draw half a circle
 STA TGT

                        \ Fall through into PLS22 to draw the half circle