quick poll - precalc sin & cos or perform every frame ?

I agree that this kind of tests are not reliable.

For example:

Graphics 640,480,32,2


; Calc on the fly
Time1=MilliSecs()
For a=0 To 10000000
	cont=a
	cont=cont*2
	cont=cont*4
Next
Time2=MilliSecs()
TimeTaken1=Time2-Time1

; Now Calc using Binary Shift
Time1=MilliSecs()
For a=0 To 10000000
	cont=a
	cont=cont Shl 1
	cont=cont Shl 2
Next
Time2=MilliSecs()
TimeTaken2=Time2-Time1





Text 10,10,"REPORT"
Text 10,30,"Calc using * operator took "+Str(TimeTaken1)+" millisecs"
Text 10,45,"Calc using Binary Shift Left took "+Str(TimeTaken2)+" millisecs"

Flip
WaitKey()
End

and this

Graphics 640,480,32,2


; Now Calc using Binary Shift
Time1=MilliSecs()
For a=0 To 10000000
	cont=a
	cont=cont Shl 1
	cont=cont Shl 2
Next
Time2=MilliSecs()
TimeTaken2=Time2-Time1

; Calc on the fly
Time1=MilliSecs()
For a=0 To 10000000
	cont=a
	cont=cont*2
	cont=cont*4
Next
Time2=MilliSecs()
TimeTaken1=Time2-Time1



Text 10,10,"REPORT"
Text 10,30,"Calc using * operator took "+Str(TimeTaken1)+" millisecs"
Text 10,45,"Calc using Binary Shift Left took "+Str(TimeTaken2)+" millisecs"

Flip
WaitKey()
End

I wanted to test the fastest way to multiply by 2 and 4 (* operator or binary shift), but the result changes if you just switch the order of the test...