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Fixed the return types of the sine/cosine functions. Added comments.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4402 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -44,12 +44,12 @@
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extern unsigned __fastcall__ cc65_sin (unsigned x);
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extern int __fastcall__ cc65_sin (unsigned x);
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/* Return the sine of the argument, which must be in range 0..360. The result
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* is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
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*/
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extern unsigned __fastcall__ cc65_cos (unsigned x);
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extern int __fastcall__ cc65_cos (unsigned x);
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/* Return the cosine of the argument, which must be in range 0..360. The result
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* is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
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*/
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@ -1,6 +1,9 @@
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;
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; Fixed point cosine/sine functions.
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;
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; int __fastcall__ cc65_sin (unsigned x);
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; int __fastcall__ cc65_cos (unsigned x);
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;
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; Returns the cosine/sine for the given argument as angular degree.
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; Valid argument range is 0..360 for both functions. They will return
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; garbage if the argument is not in a valid range. Result is in 8.8 fixed
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