fixsfdi.c revision 1.1
11.1Smycroft/*- 21.1Smycroft * Copyright (c) 1992 The Regents of the University of California. 31.1Smycroft * All rights reserved. 41.1Smycroft * 51.1Smycroft * This software was developed by the Computer Systems Engineering group 61.1Smycroft * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 71.1Smycroft * contributed to Berkeley. 81.1Smycroft * 91.1Smycroft * Redistribution and use in source and binary forms, with or without 101.1Smycroft * modification, are permitted provided that the following conditions 111.1Smycroft * are met: 121.1Smycroft * 1. Redistributions of source code must retain the above copyright 131.1Smycroft * notice, this list of conditions and the following disclaimer. 141.1Smycroft * 2. Redistributions in binary form must reproduce the above copyright 151.1Smycroft * notice, this list of conditions and the following disclaimer in the 161.1Smycroft * documentation and/or other materials provided with the distribution. 171.1Smycroft * 3. All advertising materials mentioning features or use of this software 181.1Smycroft * must display the following acknowledgement: 191.1Smycroft * This product includes software developed by the University of 201.1Smycroft * California, Berkeley and its contributors. 211.1Smycroft * 4. Neither the name of the University nor the names of its contributors 221.1Smycroft * may be used to endorse or promote products derived from this software 231.1Smycroft * without specific prior written permission. 241.1Smycroft * 251.1Smycroft * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 261.1Smycroft * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 271.1Smycroft * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 281.1Smycroft * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291.1Smycroft * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 301.1Smycroft * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 311.1Smycroft * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 321.1Smycroft * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 331.1Smycroft * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 341.1Smycroft * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 351.1Smycroft * SUCH DAMAGE. 361.1Smycroft */ 371.1Smycroft 381.1Smycroft#if defined(LIBC_SCCS) && !defined(lint) 391.1Smycroft/*static char *sccsid = "from: @(#)fixsfdi.c 5.1 (Berkeley) 7/7/92";*/ 401.1Smycroftstatic char *rcsid = "$Id: fixsfdi.c,v 1.1 1993/09/16 06:05:54 mycroft Exp $"; 411.1Smycroft#endif /* LIBC_SCCS and not lint */ 421.1Smycroft 431.1Smycroft#include "quad.h" 441.1Smycroft 451.1Smycroft/* 461.1Smycroft * Convert float to (signed) quad. 471.1Smycroft * We clamp anything that is out of range. 481.1Smycroft * 491.1Smycroft * N.B.: must use new ANSI syntax (sorry). 501.1Smycroft */ 511.1Smycroftlong long 521.1Smycroft__fixsfdi(float x) 531.1Smycroft{ 541.1Smycroft if (x < 0) 551.1Smycroft if (x <= QUAD_MIN) 561.1Smycroft return (QUAD_MIN); 571.1Smycroft else 581.1Smycroft return ((quad_t)-(u_quad_t)-x); 591.1Smycroft else 601.1Smycroft if (x >= QUAD_MAX) 611.1Smycroft return (QUAD_MAX); 621.1Smycroft else 631.1Smycroft return ((quad_t)(u_quad_t)x); 641.1Smycroft} 65