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Elite on the BBC Micro

Maths (Arithmetic): MLS2, Removed [Elite-A, Docked]

Name: MLS2, Removed [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 References: No direct references to this subroutine in this source file

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.
\ --- Mod: Original Acornsoft code removed: -----------> \.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 \ LDX ALP1 \ This repeats the first two instructions of MLS1, which \ STX P \ is presumably unintentional (though it has no effect) \ \ Fall through into MLS1 to calculate (A P) = A * ALP1 \ --- End of removed code ----------------------------->