125c28e83SPiotr Jasiukajtis/* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis/* 2225c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2325c28e83SPiotr Jasiukajtis */ 2425c28e83SPiotr Jasiukajtis/* 2525c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2625c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2725c28e83SPiotr Jasiukajtis */ 2825c28e83SPiotr Jasiukajtis 2925c28e83SPiotr Jasiukajtis .file "remquol.s" 3025c28e83SPiotr Jasiukajtis 3125c28e83SPiotr Jasiukajtis#include "libm.h" 3225c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(remquol,function) 3325c28e83SPiotr Jasiukajtis#include "libm_protos.h" 3425c28e83SPiotr Jasiukajtis ENTRY(remquol) 3525c28e83SPiotr Jasiukajtis fldt 24(%rsp) / load arg y 3625c28e83SPiotr Jasiukajtis fldt 8(%rsp) / load arg x 3725c28e83SPiotr Jasiukajtis.Lreml_loop: 3825c28e83SPiotr Jasiukajtis fprem1 / partial remainder 3925c28e83SPiotr Jasiukajtis fstsw %ax / store status word 4025c28e83SPiotr Jasiukajtis andw $0x400,%ax / check whether reduction complete 4125c28e83SPiotr Jasiukajtis jne .Lreml_loop / while reduction incomplete, do fprem1 4225c28e83SPiotr Jasiukajtis fstsw %ax 4325c28e83SPiotr Jasiukajtis fwait 4425c28e83SPiotr Jasiukajtis fstp %st(1) 4525c28e83SPiotr Jasiukajtis movw %ax,%dx 4625c28e83SPiotr Jasiukajtis andw $0x4000,%dx / get C3 4725c28e83SPiotr Jasiukajtis sarw $13,%dx 4825c28e83SPiotr Jasiukajtis movw %ax,%cx 4925c28e83SPiotr Jasiukajtis andw $0x100,%cx / get C0 5025c28e83SPiotr Jasiukajtis sarw $6,%cx 5125c28e83SPiotr Jasiukajtis addw %cx,%dx 5225c28e83SPiotr Jasiukajtis andw $0x200,%ax / get C1 5325c28e83SPiotr Jasiukajtis sarw $9,%ax 5425c28e83SPiotr Jasiukajtis addw %dx,%ax 55*55fea89dSDan Cross cwtl 5625c28e83SPiotr Jasiukajtis movl 16(%rsp),%edx / sign and bexp of x 5725c28e83SPiotr Jasiukajtis movl 32(%rsp),%ecx / sign and bexp of y 5825c28e83SPiotr Jasiukajtis andl $0x8000,%edx / edx <- sign(x) 5925c28e83SPiotr Jasiukajtis andl $0x8000,%ecx / ecx <- sign(y) 6025c28e83SPiotr Jasiukajtis cmpl %edx,%ecx 6125c28e83SPiotr Jasiukajtis je 1f 6225c28e83SPiotr Jasiukajtis negl %eax / negative n 6325c28e83SPiotr Jasiukajtis1: 6425c28e83SPiotr Jasiukajtis movl %eax,(%rdi) / last 3 significant bits of quotient 6525c28e83SPiotr Jasiukajtis ret 6625c28e83SPiotr Jasiukajtis .align 16 6725c28e83SPiotr Jasiukajtis SET_SIZE(remquol) 68