blob: eb58a85b3157584c267d583554670afa2b12cf01 [file] [log] [blame]
* Kevin D. Kissell, kevink@mips and Carsten Langgaard,
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
* Routines corresponding to Linux kernel FP context
* manipulation primitives for the Algorithmics MIPS
* FPU Emulator
#include <linux/sched.h>
#include <asm/processor.h>
#include <asm/signal.h>
#include <asm/uaccess.h>
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#define SIGNALLING_NAN 0x7ff800007ff80000LL
void fpu_emulator_init_fpu(void)
static int first = 1;
int i;
if (first) {
first = 0;
printk("Algorithmics/MIPS FPU Emulator v1.5\n");
current->thread.fpu.fcr31 = 0;
for (i = 0; i < 32; i++)
set_fpr64(&current->thread.fpu.fpr[i], 0, SIGNALLING_NAN);