4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* $NetBSD: ulp.c,v 1.2 2006/01/25 15:27:42 kleink Exp $ */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/****************************************************************
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncThe author of this software is David M. Gay.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncCopyright (C) 1998, 1999 by Lucent Technologies
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncAll Rights Reserved
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncPermission to use, copy, modify, and distribute this software and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncits documentation for any purpose and without fee is hereby
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncgranted, provided that the above copyright notice appear in all
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsynccopies and that both that the copyright notice and this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncpermission notice and warranty disclaimer appear in supporting
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncdocumentation, and that the name of Lucent or any of its entities
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncnot be used in advertising or publicity pertaining to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncdistribution of the software without specific, written prior
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncpermission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncLUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncINCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncIN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncSPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncWHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncIN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncTHIS SOFTWARE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync****************************************************************/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Please send bug reports to David M. Gay (dmg at acm dot org,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * with " at " changed at "@" and " dot " changed to "."). */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <LibConfig.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "gdtoaimp.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync double
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsynculp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifdef KR_headers
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (x) double x;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (double x)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Long L;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync double a;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync L = (word0(x) & Exp_mask) - (P-1)*Exp_msk1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifndef Sudden_Underflow
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (L > 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifdef IBM
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync L |= Exp_msk1 >> 4;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word0(a) = (UINT32)L;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word1(a) = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifndef Sudden_Underflow
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync L = (unsigned int)-L >> Exp_shift;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (L < Exp_shift) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word0(a) = 0x80000 >> L;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word1(a) = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word0(a) = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync L -= Exp_shift;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync word1(a) = L >= 31 ? 1 : 1 << (31 - L);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return a;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }