1*5b2ba9d3SPiotr Jasiukajtis/* 2*5b2ba9d3SPiotr Jasiukajtis * CDDL HEADER START 3*5b2ba9d3SPiotr Jasiukajtis * 4*5b2ba9d3SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 5*5b2ba9d3SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 6*5b2ba9d3SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 7*5b2ba9d3SPiotr Jasiukajtis * 8*5b2ba9d3SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5b2ba9d3SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 10*5b2ba9d3SPiotr Jasiukajtis * See the License for the specific language governing permissions 11*5b2ba9d3SPiotr Jasiukajtis * and limitations under the License. 12*5b2ba9d3SPiotr Jasiukajtis * 13*5b2ba9d3SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 14*5b2ba9d3SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5b2ba9d3SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 16*5b2ba9d3SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 17*5b2ba9d3SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 18*5b2ba9d3SPiotr Jasiukajtis * 19*5b2ba9d3SPiotr Jasiukajtis * CDDL HEADER END 20*5b2ba9d3SPiotr Jasiukajtis */ 21*5b2ba9d3SPiotr Jasiukajtis/* 22*5b2ba9d3SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23*5b2ba9d3SPiotr Jasiukajtis */ 24*5b2ba9d3SPiotr Jasiukajtis/* 25*5b2ba9d3SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 26*5b2ba9d3SPiotr Jasiukajtis * Use is subject to license terms. 27*5b2ba9d3SPiotr Jasiukajtis */ 28*5b2ba9d3SPiotr Jasiukajtis 29*5b2ba9d3SPiotr Jasiukajtis .file "remquol.s" 30*5b2ba9d3SPiotr Jasiukajtis 31*5b2ba9d3SPiotr Jasiukajtis#include "libm.h" 32*5b2ba9d3SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(remquol,function) 33*5b2ba9d3SPiotr Jasiukajtis#include "libm_protos.h" 34*5b2ba9d3SPiotr Jasiukajtis ENTRY(remquol) 35*5b2ba9d3SPiotr Jasiukajtis fldt 24(%rsp) / load arg y 36*5b2ba9d3SPiotr Jasiukajtis fldt 8(%rsp) / load arg x 37*5b2ba9d3SPiotr Jasiukajtis.Lreml_loop: 38*5b2ba9d3SPiotr Jasiukajtis fprem1 / partial remainder 39*5b2ba9d3SPiotr Jasiukajtis fstsw %ax / store status word 40*5b2ba9d3SPiotr Jasiukajtis andw $0x400,%ax / check whether reduction complete 41*5b2ba9d3SPiotr Jasiukajtis jne .Lreml_loop / while reduction incomplete, do fprem1 42*5b2ba9d3SPiotr Jasiukajtis fstsw %ax 43*5b2ba9d3SPiotr Jasiukajtis fwait 44*5b2ba9d3SPiotr Jasiukajtis fstp %st(1) 45*5b2ba9d3SPiotr Jasiukajtis movw %ax,%dx 46*5b2ba9d3SPiotr Jasiukajtis andw $0x4000,%dx / get C3 47*5b2ba9d3SPiotr Jasiukajtis sarw $13,%dx 48*5b2ba9d3SPiotr Jasiukajtis movw %ax,%cx 49*5b2ba9d3SPiotr Jasiukajtis andw $0x100,%cx / get C0 50*5b2ba9d3SPiotr Jasiukajtis sarw $6,%cx 51*5b2ba9d3SPiotr Jasiukajtis addw %cx,%dx 52*5b2ba9d3SPiotr Jasiukajtis andw $0x200,%ax / get C1 53*5b2ba9d3SPiotr Jasiukajtis sarw $9,%ax 54*5b2ba9d3SPiotr Jasiukajtis addw %dx,%ax 55*5b2ba9d3SPiotr Jasiukajtis cwtl 56*5b2ba9d3SPiotr Jasiukajtis movl 16(%rsp),%edx / sign and bexp of x 57*5b2ba9d3SPiotr Jasiukajtis movl 32(%rsp),%ecx / sign and bexp of y 58*5b2ba9d3SPiotr Jasiukajtis andl $0x8000,%edx / edx <- sign(x) 59*5b2ba9d3SPiotr Jasiukajtis andl $0x8000,%ecx / ecx <- sign(y) 60*5b2ba9d3SPiotr Jasiukajtis cmpl %edx,%ecx 61*5b2ba9d3SPiotr Jasiukajtis je 1f 62*5b2ba9d3SPiotr Jasiukajtis negl %eax / negative n 63*5b2ba9d3SPiotr Jasiukajtis1: 64*5b2ba9d3SPiotr Jasiukajtis movl %eax,(%rdi) / last 3 significant bits of quotient 65*5b2ba9d3SPiotr Jasiukajtis ret 66*5b2ba9d3SPiotr Jasiukajtis .align 16 67*5b2ba9d3SPiotr Jasiukajtis SET_SIZE(remquol) 68