Maths: sinHi

       Name: sinHi                                                   [Show more]
       Type: Variable
   Category: Maths
    Summary: High byte of the sine lookup table
  Deep dive: Trigonometry
    Context: See this variable in context in the source code
 References: This variable is used as follows:
             * Sine16Bit uses sinHi


 See sinLo for an explanation of this table.


.sinHi

 FOR I%, 0, 256

  N = SIN((I% / 256) * (PI / 2))

  IF N >= 1
   B% = 255
  ELSE
   B% = HI(INT(N * 65536))
  ENDIF

  EQUB B%

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