1*5d9d9091SRichard Lowe/* 2*5d9d9091SRichard Lowe * CDDL HEADER START 3*5d9d9091SRichard Lowe * 4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7*5d9d9091SRichard Lowe * 8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11*5d9d9091SRichard Lowe * and limitations under the License. 12*5d9d9091SRichard Lowe * 13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18*5d9d9091SRichard Lowe * 19*5d9d9091SRichard Lowe * CDDL HEADER END 20*5d9d9091SRichard Lowe */ 21*5d9d9091SRichard Lowe 22*5d9d9091SRichard Lowe/* 23*5d9d9091SRichard Lowe * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24*5d9d9091SRichard Lowe * Use is subject to license terms. 25*5d9d9091SRichard Lowe */ 26*5d9d9091SRichard Lowe 27*5d9d9091SRichard Lowe/* Copyright (c) 1988 AT&T */ 28*5d9d9091SRichard Lowe/* All Rights Reserved */ 29*5d9d9091SRichard Lowe 30*5d9d9091SRichard Lowe .file "fpsetsticky.s" 31*5d9d9091SRichard Lowe 32*5d9d9091SRichard Lowe#include "SYS.h" 33*5d9d9091SRichard Lowe 34*5d9d9091SRichard Lowe ANSI_PRAGMA_WEAK(fpsetsticky,function) 35*5d9d9091SRichard Lowe 36*5d9d9091SRichard Lowe ENTRY(fpsetsticky) 37*5d9d9091SRichard Lowe add %sp, -SA(MINFRAME), %sp ! get an additional word of storage 38*5d9d9091SRichard Lowe set 0x000003e0, %o4 ! mask of accrued exception bits 39*5d9d9091SRichard Lowe sll %o0, 5, %o1 ! move input bits into position 40*5d9d9091SRichard Lowe st %fsr, [%sp+ARGPUSH] ! get fsr value 41*5d9d9091SRichard Lowe ld [%sp+ARGPUSH], %o0 ! load into register 42*5d9d9091SRichard Lowe and %o1, %o4, %o1 ! generate new fsr value 43*5d9d9091SRichard Lowe andn %o0, %o4, %o2 44*5d9d9091SRichard Lowe or %o1, %o2, %o1 45*5d9d9091SRichard Lowe st %o1, [%sp+ARGPUSH] ! move new fsr value to memory 46*5d9d9091SRichard Lowe ld [%sp+ARGPUSH], %fsr ! load fsr with new value 47*5d9d9091SRichard Lowe and %o0, %o4, %o0 ! mask off bits of interest in old fsr 48*5d9d9091SRichard Lowe srl %o0, 5, %o0 ! return old accrued exception value 49*5d9d9091SRichard Lowe retl 50*5d9d9091SRichard Lowe add %sp, SA(MINFRAME), %sp ! reclaim stack space 51*5d9d9091SRichard Lowe 52*5d9d9091SRichard Lowe SET_SIZE(fpsetsticky) 53