1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23 */ 24/* 25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 .file "fmod.s" 30 31#include "libm.h" 32LIBM_ANSI_PRAGMA_WEAK(fmod,function) 33#include "libm_protos.h" 34 35 ENTRY(fmod) 36 push %rbp 37 movq %rsp,%rbp 38 subq $16,%rsp 39 movlpd %xmm1,-16(%rbp) 40 movlpd %xmm0,-8(%rbp) 41 42 movl -12(%rbp),%eax / eax <-- hi_32(y) 43 andl $0x7fffffff,%eax / eax <-- hi_32(|y|) 44 orl -16(%rbp),%eax / eax <-- lo_32(y)|hi_32(|y|) 45 je .yzero 46 47 fldl -16(%rbp) / y 48 fldl -8(%rbp) / x 49.loop: 50 fprem / partial remainder 51 fstsw %ax / store status word 52 andw $0x400,%ax / check for incomplete reduction 53 jne .loop / loop while reduction incomplete 54 fstpl -8(%rbp) 55 movsd -8(%rbp),%xmm0 56 fstp %st(0) 57 leave 58 ret 59 60.yzero: 61 PIC_SETUP(1) 62 movl $27,%edi 63 movl $2,%eax 64 call PIC_F(_SVID_libm_err) 65 PIC_WRAPUP 66 leave 67 ret 68 .align 4 69 SET_SIZE(fmod) 70