17c478bd9Sstevel@tonic-gate/* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217257d1b4Sraf 227257d1b4Sraf/* 237257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247257d1b4Sraf * Use is subject to license terms. 257257d1b4Sraf */ 267257d1b4Sraf 277c478bd9Sstevel@tonic-gate/* Copyright (c) 1988 AT&T */ 287c478bd9Sstevel@tonic-gate/* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 30*9a70fc3bSMark J. Nelson .file "fpsetrnd.s" 317c478bd9Sstevel@tonic-gate 327257d1b4Sraf#include "SYS.h" 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate ANSI_PRAGMA_WEAK(fpsetround,function) 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate ENTRY(fpsetround) 377c478bd9Sstevel@tonic-gate add %sp, -SA(MINFRAME), %sp ! get an additional word of storage 387c478bd9Sstevel@tonic-gate set 0xc0000000, %o4 ! mask of round control bits 397c478bd9Sstevel@tonic-gate sll %o0, 30, %o1 ! move input bits into position 407c478bd9Sstevel@tonic-gate st %fsr, [%sp+ARGPUSH] ! get fsr value 417c478bd9Sstevel@tonic-gate ld [%sp+ARGPUSH], %o0 ! load into register 427c478bd9Sstevel@tonic-gate and %o1, %o4, %o1 ! generate new fsr value 437c478bd9Sstevel@tonic-gate andn %o0, %o4, %o2 447c478bd9Sstevel@tonic-gate or %o1, %o2, %o1 457c478bd9Sstevel@tonic-gate st %o1, [%sp+ARGPUSH] ! move new fsr value to memory 467c478bd9Sstevel@tonic-gate ld [%sp+ARGPUSH], %fsr ! load fsr with new value 477c478bd9Sstevel@tonic-gate srl %o0, 30, %o0 ! return old round control value 487c478bd9Sstevel@tonic-gate retl 497c478bd9Sstevel@tonic-gate add %sp, SA(MINFRAME), %sp ! reclaim stack space 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate SET_SIZE(fpsetround) 52