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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
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parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: e_asin.S,v 1.4 1995/05/08 23:45:40 jtc Exp $")
+
+/* asin = atan (x / sqrt(1 - x^2)) */
+ENTRY(__ieee754_asin)
+ fldl 4(%esp) /* x */
+ fld %st
+ fmul %st(0) /* x^2 */
+ fld1
+ fsubp /* 1 - x^2 */
+ fsqrt /* sqrt (1 - x^2) */
+ fpatan
+ ret
+END (__ieee754_asin)