Driving model: SquealTyres

       Name: SquealTyres                                             [Show more]
       Type: Subroutine
   Category: Driving model
    Summary: Make the tyres squeal
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * CheckForCrash calls SquealTyres


 Arguments:

   A                    The new value for spinYawAngleTop


.SquealTyres

 STA spinYawAngleTop    \ Set spinYawAngleTop = A

 LDA #%10000000         \ Set bit 7 in tyreSqueal for both tyres, so they squeal
 STA tyreSqueal
 STA tyreSqueal+1

 LDA #4                 \ Make sound #4 (crash/contact) at the current volume
 JSR MakeSound-3        \ level

 RTS                    \ Return from the subroutine