diff options
Diffstat (limited to 'REORG.TODO/sysdeps/i386/fpu/e_asin.S')
| -rw-r--r-- | REORG.TODO/sysdeps/i386/fpu/e_asin.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/fpu/e_asin.S b/REORG.TODO/sysdeps/i386/fpu/e_asin.S new file mode 100644 index 0000000000..39c8b47da4 --- /dev/null +++ b/REORG.TODO/sysdeps/i386/fpu/e_asin.S @@ -0,0 +1,38 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> +#include <i386-math-asm.h> + +RCSID("$NetBSD: e_asin.S,v 1.4 1995/05/08 23:45:40 jtc Exp $") + +DEFINE_DBL_MIN + +#ifdef PIC +# define MO(op) op##@GOTOFF(%ecx) +#else +# define MO(op) op +#endif + + .text + +/* asin = atan (x / sqrt((1-x) (1+x))) */ +ENTRY(__ieee754_asin) +#ifdef PIC + LOAD_PIC_REG (cx) +#endif + fldl 4(%esp) /* x */ + fld %st + fld1 /* 1 : x : x */ + fsubp /* 1 - x : x */ + fld1 /* 1 : 1 - x : x */ + fadd %st(2) /* 1 + x : 1 - x : x */ + fmulp /* 1 - x^2 */ + fsqrt /* sqrt (1 - x^2) */ + fpatan + DBL_CHECK_FORCE_UFLOW + ret +END (__ieee754_asin) +strong_alias (__ieee754_asin, __asin_finite) |