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annotate src/build-msvctools/math/logbf.c @ 3061:f8299bb6c872

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Initial support for native MSVC compilation. * add MSVC support files: compiler wrappers and support libraries * adapt libiconv to work with MSVC * adapt gettext to work with MSVC
author Michael Goffioul <michael.goffioul@gmail.com>
date Mon, 17 Jun 2013 22:43:11 -0400
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3061
f8299bb6c872 Initial support for native MSVC compilation.
Michael Goffioul <michael.goffioul@gmail.com>
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1 /*
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2 * Written by J.T. Conklin <jtc@netbsd.org>.
f8299bb6c872 Initial support for native MSVC compilation.
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3 * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
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4 * Public domain.
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5 */
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6
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7 #include <math.h>
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8
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9 float
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10 logbf (float x)
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11 {
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12 float res;
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13 asm ("fxtract\n\t"
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14 "fstp %%st" : "=t" (res) : "0" (x));
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15 return res;
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16 }