| /* | |
| * Written by J.T. Conklin <jtc@netbsd.org>. | |
| * Public domain. | |
| * Adapted for float type by Ulrich Drepper <drepper@cygnus.com>. | |
| */ | |
| #include <machine/asm.h> | |
| RCSID("$NetBSD: $") | |
| /* acos = atan (sqrt(1 - x^2) / x) */ | |
| ENTRY(__ieee754_acosf) | |
| flds 4(%esp) /* x */ | |
| fld %st | |
| fmul %st(0) /* x^2 */ | |
| fld1 | |
| fsubp /* 1 - x^2 */ | |
| fsqrt /* sqrt (1 - x^2) */ | |
| fxch %st(1) | |
| fpatan | |
| ret | |
| END (__ieee754_acosf) |