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 2005 Sun Microsystems, Inc. All rights reserved. 2625c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2725c28e83SPiotr Jasiukajtis */ 2825c28e83SPiotr Jasiukajtis 2925c28e83SPiotr Jasiukajtis .file "remainder.s" 3025c28e83SPiotr Jasiukajtis 3125c28e83SPiotr Jasiukajtis#include "libm.h" 3225c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(remainder,function) 3325c28e83SPiotr Jasiukajtis#include "libm_protos.h" 3425c28e83SPiotr Jasiukajtis 3525c28e83SPiotr Jasiukajtis ENTRY(remainder) 3625c28e83SPiotr Jasiukajtis push %rbp 3725c28e83SPiotr Jasiukajtis movq %rsp,%rbp 3825c28e83SPiotr Jasiukajtis subq $16,%rsp 3925c28e83SPiotr Jasiukajtis movlpd %xmm1,-16(%rbp) 4025c28e83SPiotr Jasiukajtis movlpd %xmm0,-8(%rbp) 4125c28e83SPiotr Jasiukajtis 4225c28e83SPiotr Jasiukajtis ucomisd %xmm0,%xmm1 / if x or y is NaN, use fprem1 4325c28e83SPiotr Jasiukajtis jp 1f 4425c28e83SPiotr Jasiukajtis 4525c28e83SPiotr Jasiukajtis movl -12(%rbp),%eax / eax <-- hi_32(y) 4625c28e83SPiotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- hi_32(|y|) 4725c28e83SPiotr Jasiukajtis orl -16(%rbp),%eax / eax <-- lo_32(y)|hi_32(|y|) 4825c28e83SPiotr Jasiukajtis je .yzero_or_xinf 4925c28e83SPiotr Jasiukajtis 5025c28e83SPiotr Jasiukajtis movl -4(%rbp),%eax / eax <-- hi_32(x) 5125c28e83SPiotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- hi_32(|x|) 5225c28e83SPiotr Jasiukajtis cmpl $0x7ff00000,%eax 5325c28e83SPiotr Jasiukajtis jne 1f 5425c28e83SPiotr Jasiukajtis cmpl $0,-8(%rbp) 5525c28e83SPiotr Jasiukajtis je .yzero_or_xinf 5625c28e83SPiotr Jasiukajtis1: 5725c28e83SPiotr Jasiukajtis fldl -16(%rbp) / y 5825c28e83SPiotr Jasiukajtis fldl -8(%rbp) / x 5925c28e83SPiotr Jasiukajtis.rem_loop: 6025c28e83SPiotr Jasiukajtis fprem1 / partial remainder 6125c28e83SPiotr Jasiukajtis fstsw %ax / store status word 6225c28e83SPiotr Jasiukajtis andw $0x400,%ax / check for incomplete reduction 6325c28e83SPiotr Jasiukajtis jne .rem_loop / while incomplete, do fprem1 again 6425c28e83SPiotr Jasiukajtis fstpl -8(%rbp) 6525c28e83SPiotr Jasiukajtis movsd -8(%rbp),%xmm0 6625c28e83SPiotr Jasiukajtis fstp %st(0) 6725c28e83SPiotr Jasiukajtis leave 6825c28e83SPiotr Jasiukajtis ret 6925c28e83SPiotr Jasiukajtis 7025c28e83SPiotr Jasiukajtis.yzero_or_xinf: 7125c28e83SPiotr Jasiukajtis PIC_SETUP(1) 7225c28e83SPiotr Jasiukajtis movl $28,%edi 7325c28e83SPiotr Jasiukajtis movl $2,%eax 7425c28e83SPiotr Jasiukajtis call PIC_F(_SVID_libm_err) 7525c28e83SPiotr Jasiukajtis PIC_WRAPUP 7625c28e83SPiotr Jasiukajtis leave 7725c28e83SPiotr Jasiukajtis ret 7825c28e83SPiotr Jasiukajtis .align 4 7925c28e83SPiotr Jasiukajtis SET_SIZE(remainder) 80