freebsd-dev/sys/powerpc/include/fpu.h
Benno Rice c31c26450b Not all cpus are MPC750s. Replace the MPC750 cpu option with OEA. This
stands for Operating Environment Architecture and is the specification that
all of the MPC6xx, MPC7xx, MPC7xxx and IBM7xx CPUs adhere to.
2003-02-05 11:37:59 +00:00

83 lines
2.9 KiB
C

/*-
* Copyright (C) 1996 Wolfgang Solfrank.
* Copyright (C) 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $NetBSD: fpu.h,v 1.2 1999/12/07 15:14:56 danw Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_FPU_H_
#define _MACHINE_FPU_H_
#define FPSCR_FX 0x80000000
#define FPSCR_FEX 0x40000000
#define FPSCR_VX 0x20000000
#define FPSCR_OX 0x10000000
#define FPSCR_UX 0x08000000
#define FPSCR_ZX 0x04000000
#define FPSCR_XX 0x02000000
#define FPSCR_VXSNAN 0x01000000
#define FPSCR_VXISI 0x00800000
#define FPSCR_VXIDI 0x00400000
#define FPSCR_VXZDZ 0x00200000
#define FPSCR_VXIMZ 0x00100000
#define FPSCR_VXVC 0x00080000
#define FPSCR_FR 0x00040000
#define FPSCR_FI 0x00020000
#define FPSCR_FPRF 0x0001f000
#define FPSCR_C 0x00010000
#define FPSCR_FPCC 0x0000f000
#define FPSCR_FL 0x00008000
#define FPSCR_FG 0x00004000
#define FPSCR_FE 0x00002000
#define FPSCR_FU 0x00001000
#define FPSCR_VXSOFT 0x00000400
#define FPSCR_VXSQRT 0x00000200
#define FPSCR_VXCVI 0x00000100
#define FPSCR_VE 0x00000080
#define FPSCR_OE 0x00000040
#define FPSCR_UE 0x00000020
#define FPSCR_ZE 0x00000010
#define FPSCR_XE 0x00000008
#define FPSCR_NI 0x00000004
#define FPSCR_RN 0x00000003
#ifdef _KERNEL
/* List of PowerPC architectures that support FPUs. */
#if defined(OEA)
#define PPC_HAVE_FPU
void enable_fpu(struct thread *);
void save_fpu(struct thread *);
#endif /* PPC_HAVE_FPU */
#endif /* _KERNEL */
#endif /* _MACHINE_FPU_H_ */