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| author | Bdale Garbee <bdale@gag.com> | 2018-10-20 01:18:12 -0600 |
|---|---|---|
| committer | Bdale Garbee <bdale@gag.com> | 2018-10-20 01:18:12 -0600 |
| commit | 0686a7b8aec524d81bda4c572549a3a068ce0eed (patch) | |
| tree | 2e6061c834b99e3b9668be8b3cfb1627251365d3 /src/math/kf_sin.c | |
| parent | 6aa451ce81bfdfe679e3f9902043a5f0d235c745 (diff) | |
| parent | cc528f1ff0271ec6488a1a7b91c731183502101e (diff) | |
Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos
Diffstat (limited to 'src/math/kf_sin.c')
| -rw-r--r-- | src/math/kf_sin.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/src/math/kf_sin.c b/src/math/kf_sin.c deleted file mode 100644 index e81fa0bd..00000000 --- a/src/math/kf_sin.c +++ /dev/null @@ -1,49 +0,0 @@ -/* kf_sin.c -- float version of k_sin.c - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#include "fdlibm.h" - -#ifdef __STDC__ -static const float -#else -static float -#endif -half = 5.0000000000e-01,/* 0x3f000000 */ -S1 = -1.6666667163e-01, /* 0xbe2aaaab */ -S2 = 8.3333337680e-03, /* 0x3c088889 */ -S3 = -1.9841270114e-04, /* 0xb9500d01 */ -S4 = 2.7557314297e-06, /* 0x3638ef1b */ -S5 = -2.5050759689e-08, /* 0xb2d72f34 */ -S6 = 1.5896910177e-10; /* 0x2f2ec9d3 */ - -#ifdef __STDC__ - float __kernel_sinf(float x, float y, int iy) -#else - float __kernel_sinf(x, y, iy) - float x,y; int iy; /* iy=0 if y is zero */ -#endif -{ - float z,r,v; - __int32_t ix; - GET_FLOAT_WORD(ix,x); - ix &= 0x7fffffff; /* high word of x */ - if(ix<0x32000000) /* |x| < 2**-27 */ - {if((int)x==0) return x;} /* generate inexact */ - z = x*x; - v = z*x; - r = S2+z*(S3+z*(S4+z*(S5+z*S6))); - if(iy==0) return x+v*(S1+z*r); - else return x-((z*(half*y-v*r)-y)-v*S1); -} |