Maths (Arithmetic): MLS2

       Name: MLS2                                                    [Show more]
       Type: Subroutine
   Category: Maths (Arithmetic)
    Summary: Calculate (S R) = XX(1 0) and (A P) = A * ALP1
    Context: See this subroutine in context in the source code
 Variations: See code variations for this subroutine in the different versions
 References: This subroutine is called as follows:
             * STARS1 calls MLS2
             * STARS6 calls MLS2


 Calculate the following:

   (S R) = XX(1 0)

   (A P) = A * ALP1

 where ALP1 is the magnitude of the current roll angle alpha, in the range
 0-31.


.MLS2

 LDX XX                 \ Set (S R) = XX(1 0), starting with the low bytes
 STX R

 LDX XX+1               \ And then doing the high bytes
 STX S

                        \ Fall through into MLS1 to calculate (A P) = A * ALP1