From f7eac6eb504f4baf13dbb4d26717942df050ebe6 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Tue, 5 Mar 1996 21:41:30 +0000
Subject: Mon Mar  4 20:54:40 1996  Andreas Schwab 
 <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig ($(common-objpfx)config.make): Depend on config.h.in.


Mon Mar  4 17:35:09 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	* hurd/catch-signal.c (hurd_safe_memmove): New function.
	(hurd_safe_copyin, hurd_safe_copyout): New functions.
	* hurd/hurd/sigpreempt.h: Declare them.

Sun Mar  3 08:43:44 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	Replace math code with fdlibm from Sun as modified for netbsd by
	JT Conklin and Ian Taylor, including x86 FPU support.
	* sysdeps/libm-ieee754, sysdeps/libm-i387: New directories.
	* math/math_private.h: New file.
	* sysdeps/i386/fpu/Implies: New file.
	* sysdeps/ieee754/Implies: New file.
	* math/machine/asm.h, math/machine/endian.h: New files.
	* math/Makefile, math/math.h: Rewritten.
	* mathcalls.h, math/mathcalls.h: New file, broken out of math.h.
	* math/finite.c: File removed.
	* sysdeps/generic/Makefile [$(subdir)=math]: Frobnication removed.

	* math/test-math.c: Include errno.h and string.h.

	* sysdeps/unix/bsd/dirstream.h: File removed.
	* sysdeps/unix/bsd/readdir.c: File removed.
---
 sysdeps/libm-ieee754/s_rintf.c | 72 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 sysdeps/libm-ieee754/s_rintf.c

(limited to 'sysdeps/libm-ieee754/s_rintf.c')

diff --git a/sysdeps/libm-ieee754/s_rintf.c b/sysdeps/libm-ieee754/s_rintf.c
new file mode 100644
index 0000000..4e5b409
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_rintf.c
@@ -0,0 +1,72 @@
+/* s_rintf.c -- float version of s_rint.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice 
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: s_rintf.c,v 1.4 1995/05/10 20:48:06 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const float
+#else
+static float 
+#endif
+TWO23[2]={
+  8.3886080000e+06, /* 0x4b000000 */
+ -8.3886080000e+06, /* 0xcb000000 */
+};
+
+#ifdef __STDC__
+	float __rintf(float x)
+#else
+	float __rintf(x)
+	float x;
+#endif
+{
+	int32_t i0,j0,sx;
+	u_int32_t i,i1;
+	float w,t;
+	GET_FLOAT_WORD(i0,x);
+	sx = (i0>>31)&1;
+	j0 = ((i0>>23)&0xff)-0x7f;
+	if(j0<23) {
+	    if(j0<0) { 	
+		if((i0&0x7fffffff)==0) return x;
+		i1 = (i0&0x07fffff);
+		i0 &= 0xfff00000;
+		i0 |= ((i1|-i1)>>9)&0x400000;
+		SET_FLOAT_WORD(x,i0);
+	        w = TWO23[sx]+x;
+	        t =  w-TWO23[sx];
+		GET_FLOAT_WORD(i0,t);
+		SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
+	        return t;
+	    } else {
+		i = (0x007fffff)>>j0;
+		if((i0&i)==0) return x; /* x is integral */
+		i>>=1;
+		if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0);
+	    }
+	} else {
+	    if(j0==0x80) return x+x;	/* inf or NaN */
+	    else return x;		/* x is integral */
+	}
+	SET_FLOAT_WORD(x,i0);
+	w = TWO23[sx]+x;
+	return w-TWO23[sx];
+}
+weak_alias (__rintf, rintf)
-- 
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