1*25c28e83SPiotr Jasiukajtis/* 2*25c28e83SPiotr Jasiukajtis * CDDL HEADER START 3*25c28e83SPiotr Jasiukajtis * 4*25c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 5*25c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 6*25c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 7*25c28e83SPiotr Jasiukajtis * 8*25c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*25c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 10*25c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 11*25c28e83SPiotr Jasiukajtis * and limitations under the License. 12*25c28e83SPiotr Jasiukajtis * 13*25c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 14*25c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*25c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 16*25c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 17*25c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 18*25c28e83SPiotr Jasiukajtis * 19*25c28e83SPiotr Jasiukajtis * CDDL HEADER END 20*25c28e83SPiotr Jasiukajtis */ 21*25c28e83SPiotr Jasiukajtis/* 22*25c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23*25c28e83SPiotr Jasiukajtis */ 24*25c28e83SPiotr Jasiukajtis/* 25*25c28e83SPiotr Jasiukajtis * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26*25c28e83SPiotr Jasiukajtis * Use is subject to license terms. 27*25c28e83SPiotr Jasiukajtis */ 28*25c28e83SPiotr Jasiukajtis 29*25c28e83SPiotr Jasiukajtis .file "remainder.s" 30*25c28e83SPiotr Jasiukajtis 31*25c28e83SPiotr Jasiukajtis#include "libm.h" 32*25c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(remainder,function) 33*25c28e83SPiotr Jasiukajtis#include "libm_protos.h" 34*25c28e83SPiotr Jasiukajtis 35*25c28e83SPiotr Jasiukajtis ENTRY(remainder) 36*25c28e83SPiotr Jasiukajtis pushl %ebp 37*25c28e83SPiotr Jasiukajtis movl %esp,%ebp 38*25c28e83SPiotr Jasiukajtis fldl 16(%esp) / load arg y 39*25c28e83SPiotr Jasiukajtis fldl 8(%esp) / load arg x 40*25c28e83SPiotr Jasiukajtis fucom 41*25c28e83SPiotr Jasiukajtis fnstsw %ax 42*25c28e83SPiotr Jasiukajtis sahf 43*25c28e83SPiotr Jasiukajtis jp .rem_loop / if x or y is NaN, use fprem1 44*25c28e83SPiotr Jasiukajtis 45*25c28e83SPiotr Jasiukajtis movl 20(%esp),%eax / eax <-- hi_32(y) 46*25c28e83SPiotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- hi_32(|y|) 47*25c28e83SPiotr Jasiukajtis orl 16(%esp),%eax / eax <-- lo_32(y)|hi_32(|y|) 48*25c28e83SPiotr Jasiukajtis je .yzero_or_xinf 49*25c28e83SPiotr Jasiukajtis 50*25c28e83SPiotr Jasiukajtis movl 12(%esp),%eax / eax <-- hi_32(x) 51*25c28e83SPiotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- hi_32(|x|) 52*25c28e83SPiotr Jasiukajtis cmpl $0x7ff00000,%eax 53*25c28e83SPiotr Jasiukajtis jne .rem_loop 54*25c28e83SPiotr Jasiukajtis cmpl $0,8(%esp) 55*25c28e83SPiotr Jasiukajtis je .yzero_or_xinf 56*25c28e83SPiotr Jasiukajtis 57*25c28e83SPiotr Jasiukajtis.rem_loop: 58*25c28e83SPiotr Jasiukajtis fprem1 / partial remainder 59*25c28e83SPiotr Jasiukajtis fstsw %ax / store status word 60*25c28e83SPiotr Jasiukajtis andw $0x400,%ax / check for incomplete reduction 61*25c28e83SPiotr Jasiukajtis jne .rem_loop / while incomplete, do fprem1 again 62*25c28e83SPiotr Jasiukajtis fstp %st(1) 63*25c28e83SPiotr Jasiukajtis leave 64*25c28e83SPiotr Jasiukajtis ret 65*25c28e83SPiotr Jasiukajtis 66*25c28e83SPiotr Jasiukajtis.yzero_or_xinf: 67*25c28e83SPiotr Jasiukajtis PIC_SETUP(1) 68*25c28e83SPiotr Jasiukajtis fstp %st(0) / x 69*25c28e83SPiotr Jasiukajtis fstp %st(0) / empty NPX stack 70*25c28e83SPiotr Jasiukajtis pushl $28 / case 28 in _SVID_libm_err 71*25c28e83SPiotr Jasiukajtis pushl 20(%ebp) / pass y 72*25c28e83SPiotr Jasiukajtis pushl 16(%ebp) 73*25c28e83SPiotr Jasiukajtis pushl 12(%ebp) / pass x 74*25c28e83SPiotr Jasiukajtis pushl 8(%ebp) 75*25c28e83SPiotr Jasiukajtis call PIC_F(_SVID_libm_err) 76*25c28e83SPiotr Jasiukajtis addl $20,%esp 77*25c28e83SPiotr Jasiukajtis PIC_WRAPUP 78*25c28e83SPiotr Jasiukajtis leave 79*25c28e83SPiotr Jasiukajtis ret 80*25c28e83SPiotr Jasiukajtis .align 4 81*25c28e83SPiotr Jasiukajtis SET_SIZE(remainder) 82