Utility routines: Delay

       Name: Delay                                                   [Show more]
       Type: Subroutine
   Category: Utility routines
    Summary: Delay for a specified number of loops
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * AlienInAcornsville calls Delay
             * Crash calls Delay


 This routine performs A^3 loop iterations, to create a delay.

 Fragments of the original source for this routine appear in the game code, as
 follows:

   .dlp2 STA&76
   .dl ...
   ... :BNE dlp2
   DEC&74:BNE dlp1
   rts


.Delay

 STA T                  \ Set T as the counter for the outer loop

.dely1

 STA U                  \ Set U as the counter for the middle loop

.dely2

 STA V                  \ Set V as the counter for the inner loop

.dely3

 DEC V                  \ Loop around for A iterations in the inner loop
 BNE dely3

 DEC U                  \ Loop around for A iterations in the middle loop
 BNE dely2

 DEC T                  \ Loop around for A iterations in the outer loop
 BNE dely1

 RTS                    \ Return from the subroutine