1*84d9c625SLionel Sambuc/* $NetBSD: fpgetmask.S,v 1.7 2013/08/02 02:07:00 matt Exp $ */ 22fe8fb19SBen Gras 3*84d9c625SLionel Sambuc/*- 4*84d9c625SLionel Sambuc * Copyright (c) 2013 The NetBSD Foundation, Inc. 52fe8fb19SBen Gras * All rights reserved. 62fe8fb19SBen Gras * 7*84d9c625SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation 8*84d9c625SLionel Sambuc * by Matt Thomas of 3am Software Foundry. 9*84d9c625SLionel Sambuc * 102fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 112fe8fb19SBen Gras * modification, are permitted provided that the following conditions 122fe8fb19SBen Gras * are met: 132fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 142fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 152fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 162fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 172fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 182fe8fb19SBen Gras * 19*84d9c625SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*84d9c625SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*84d9c625SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*84d9c625SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*84d9c625SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*84d9c625SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*84d9c625SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*84d9c625SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*84d9c625SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*84d9c625SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*84d9c625SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE. 302fe8fb19SBen Gras */ 312fe8fb19SBen Gras 32*84d9c625SLionel Sambuc#ifndef __VFP_FP__ 33*84d9c625SLionel Sambuc#error FPA is not supported anymore 34*84d9c625SLionel Sambuc#endif 35*84d9c625SLionel Sambuc#include <arm/asm.h> 36*84d9c625SLionel Sambuc#include <arm/vfpreg.h> 372fe8fb19SBen Gras 382fe8fb19SBen Gras/* 392fe8fb19SBen Gras * Return the current FP exception enable mask 402fe8fb19SBen Gras */ 412fe8fb19SBen Gras 422fe8fb19SBen Gras#ifdef WEAK_ALIAS 432fe8fb19SBen GrasWEAK_ALIAS(fpgetmask, _fpgetmask) 44*84d9c625SLionel Sambuc#define fpgetmask _fpgetmask 45*84d9c625SLionel Sambuc#endif 46*84d9c625SLionel Sambuc 472fe8fb19SBen GrasENTRY(fpgetmask) 48*84d9c625SLionel Sambuc vmrs r0, fpscr 49*84d9c625SLionel Sambuc mov r0, r0, lsr #8 50*84d9c625SLionel Sambuc and r0, r0, #VFP_FPSCR_CSUM 512fe8fb19SBen Gras RET 52*84d9c625SLionel SambucEND(fpgetmask) 53