From abfbdde177c3a7155070dda1b2cdc8292054cc26 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 14 Jul 1999 00:54:57 +0000 Subject: Update. --- sysdeps/libm-i387/e_expl.S | 43 ------------------------------------------- 1 file changed, 43 deletions(-) delete mode 100644 sysdeps/libm-i387/e_expl.S (limited to 'sysdeps/libm-i387/e_expl.S') diff --git a/sysdeps/libm-i387/e_expl.S b/sysdeps/libm-i387/e_expl.S deleted file mode 100644 index 2bcdf58c58..0000000000 --- a/sysdeps/libm-i387/e_expl.S +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Written by J.T. Conklin . - * Public domain. - * - * Adapted for `long double' by Ulrich Drepper . - */ - -#include - -RCSID("$NetBSD: $") - -/* e^x = 2^(x * log2l(e)) */ -ENTRY(__ieee754_expl) - fldt 4(%esp) -/* I added the following ugly construct because expl(+-Inf) resulted - in NaN. The ugliness results from the bright minds at Intel. - For the i686 the code can be written better. - -- drepper@cygnus.com. */ - fxam /* Is NaN or +-Inf? */ - fstsw %ax - movb $0x45, %dh - andb %ah, %dh - cmpb $0x05, %dh - je 1f /* Is +-Inf, jump. */ - fldl2e - fmulp /* x * log2(e) */ - fld %st - frndint /* int(x * log2(e)) */ - fsubr %st,%st(1) /* fract(x * log2(e)) */ - fxch - f2xm1 /* 2^(fract(x * log2(e))) - 1 */ - fld1 - faddp /* 2^(fract(x * log2(e))) */ - fscale /* e^x */ - fstp %st(1) - ret - -1: testl $0x200, %eax /* Test sign. */ - jz 2f /* If positive, jump. */ - fstp %st - fldz /* Set result to 0. */ -2: ret -END (__ieee754_expl) -- cgit v1.2.3-70-g09d2