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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22/* Copyright (c) 1988 AT&T */ 23/* All Rights Reserved */ 24 25 26/* Copyright (c) 1989 by Sun Microsystems, Inc. */ 27 28.ident "%Z%%M% %I% %E% SMI" 29 /* SVr4.0 1.4.1.7 */ 30 31 .file "fpsetsticky.s" 32 33#include <sys/asm_linkage.h> 34 35 ANSI_PRAGMA_WEAK(fpsetsticky,function) 36 37#include "synonyms.h" 38 39 ENTRY(fpsetsticky) 40 add %sp, -SA(MINFRAME), %sp ! get an additional word of storage 41 set 0x000003e0, %o4 ! mask of accrued exception bits 42 sll %o0, 5, %o1 ! move input bits into position 43 st %fsr, [%sp+STACK_BIAS+ARGPUSH] ! get fsr value 44 ld [%sp+STACK_BIAS+ARGPUSH], %o0 ! load into register 45 and %o1, %o4, %o1 ! generate new fsr value 46 andn %o0, %o4, %o2 47 or %o1, %o2, %o1 48 st %o1, [%sp+STACK_BIAS+ARGPUSH] ! move new fsr value to memory 49 ld [%sp+STACK_BIAS+ARGPUSH], %fsr ! load fsr with new value 50 and %o0, %o4, %o0 ! mask off bits of interest in old fsr 51 srl %o0, 5, %o0 ! return old accrued exception value 52 retl 53 add %sp, SA(MINFRAME), %sp ! reclaim stack space 54 55 SET_SIZE(fpsetsticky) 56