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+/*
+ * 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) */
+ fabs
+ fxch %st(1)
+ fpatan
+ ret
+END (__ieee754_acosf)
+strong_alias (__ieee754_acosf, __acosf_finite)