Drawing circles: HFS2

       Name: HFS2                                                    [Show more]
       Type: Subroutine
   Category: Drawing circles
    Summary: Clear the screen and draw the launch or hyperspace tunnel
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * LL164 calls HFS2
             * Main flight loop (Part 9 of 16) calls HFS2


.HFS2

 STA STP                \ Store the step size in A

 JSR TTX66              \ Clear the screen and draw a border box

 JMP HFS1               \ Jump to HFS1 to draw the launch or hyperspace tunnel