11541Srgrimes/*- 21541Srgrimes * Copyright (c) 1992, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * This software was developed by the Computer Systems Engineering group 61541Srgrimes * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 71541Srgrimes * contributed to Berkeley. 81541Srgrimes * 91541Srgrimes * Redistribution and use in source and binary forms, with or without 101541Srgrimes * modification, are permitted provided that the following conditions 111541Srgrimes * are met: 121541Srgrimes * 1. Redistributions of source code must retain the above copyright 131541Srgrimes * notice, this list of conditions and the following disclaimer. 141541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 151541Srgrimes * notice, this list of conditions and the following disclaimer in the 161541Srgrimes * documentation and/or other materials provided with the distribution. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes */ 331541Srgrimes 34116189Sobrien#include <sys/cdefs.h> 35116189Sobrien__FBSDID("$FreeBSD$"); 36116189Sobrien 3770949Sbenno#include <libkern/quad.h> 381541Srgrimes 391541Srgrimes/* 401541Srgrimes * Shift a (signed) quad value left (arithmetic shift left). 411541Srgrimes * This is the same as logical shift left! 421541Srgrimes */ 431541Srgrimesquad_t 441541Srgrimes__ashldi3(a, shift) 451541Srgrimes quad_t a; 461541Srgrimes qshift_t shift; 471541Srgrimes{ 481541Srgrimes union uu aa; 491541Srgrimes 501541Srgrimes aa.q = a; 511541Srgrimes if (shift >= LONG_BITS) { 521541Srgrimes aa.ul[H] = shift >= QUAD_BITS ? 0 : 531541Srgrimes aa.ul[L] << (shift - LONG_BITS); 541541Srgrimes aa.ul[L] = 0; 551541Srgrimes } else if (shift > 0) { 561541Srgrimes aa.ul[H] = (aa.ul[H] << shift) | 571541Srgrimes (aa.ul[L] >> (LONG_BITS - shift)); 581541Srgrimes aa.ul[L] <<= shift; 591541Srgrimes } 601541Srgrimes return (aa.q); 611541Srgrimes} 62255939Sandrew 63255939Sandrew#ifdef __ARM_EABI__ 64255939Sandrewlong long __aeabi_llsl(long long, int); 65255939Sandrew 66255939Sandrewlong long 67255939Sandrew__aeabi_llsl(long long a, int b) 68255939Sandrew{ 69255939Sandrew return __ashldi3(a, b); 70255939Sandrew} 71255939Sandrew#endif 72