/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ .file "fpsetsticky.s" #include "SYS.h" ANSI_PRAGMA_WEAK(fpsetsticky,function) ENTRY(fpsetsticky) add %sp, -SA(MINFRAME), %sp ! get an additional word of storage set 0x000003e0, %o4 ! mask of accrued exception bits sll %o0, 5, %o1 ! move input bits into position st %fsr, [%sp+STACK_BIAS+ARGPUSH] ! get fsr value ld [%sp+STACK_BIAS+ARGPUSH], %o0 ! load into register and %o1, %o4, %o1 ! generate new fsr value andn %o0, %o4, %o2 or %o1, %o2, %o1 st %o1, [%sp+STACK_BIAS+ARGPUSH] ! move new fsr value to memory ld [%sp+STACK_BIAS+ARGPUSH], %fsr ! load fsr with new value and %o0, %o4, %o0 ! mask off bits of interest in old fsr srl %o0, 5, %o0 ! return old accrued exception value retl add %sp, SA(MINFRAME), %sp ! reclaim stack space SET_SIZE(fpsetsticky)