88 lines
3.3 KiB
C
88 lines
3.3 KiB
C
/*
|
|
* fpu_system.h
|
|
*
|
|
*
|
|
* Copyright (C) 1992, 1993 W. Metzenthen, 22 Parker St, Ormond,
|
|
* Vic 3163, Australia.
|
|
* E-mail apm233m@vaxc.cc.monash.edu.au
|
|
* All rights reserved.
|
|
*
|
|
* This copyright notice covers the redistribution and use of the
|
|
* FPU emulator developed by W. Metzenthen. It covers only its use
|
|
* in the 386BSD operating system. Any other use is not permitted
|
|
* under this copyright.
|
|
*
|
|
* 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 include information specifying
|
|
* that source code for the emulator is freely available and include
|
|
* either:
|
|
* a) an offer to provide the source code for a nominal distribution
|
|
* fee, or
|
|
* b) list at least two alternative methods whereby the source
|
|
* can be obtained, e.g. a publically accessible bulletin board
|
|
* and an anonymous ftp site from which the software can be
|
|
* downloaded.
|
|
* 3. All advertising materials specifically mentioning features or use of
|
|
* this emulator must acknowledge that it was developed by W. Metzenthen.
|
|
* 4. The name of W. Metzenthen may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``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
|
|
* W. METZENTHEN 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.
|
|
*
|
|
*
|
|
* $Id:$
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef _FPU_SYSTEM_H
|
|
#define _FPU_SYSTEM_H
|
|
|
|
/* system dependent definitions */
|
|
|
|
/*
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel.h>
|
|
*/
|
|
|
|
#define I387 (*(union i387_union *)&(((struct pcb *)curproc->p_addr)->pcb_savefpu))
|
|
#define FPU_info (I387.soft.frame)
|
|
|
|
#define FPU_CS (*(unsigned short *) &(FPU_info->tf_cs))
|
|
#define FPU_DS (*(unsigned short *) &(FPU_info->tf_ds))
|
|
#define FPU_EAX (FPU_info->tf_eax)
|
|
#define FPU_EFLAGS (FPU_info->tf_eflags)
|
|
#define FPU_EIP (FPU_info->tf_eip)
|
|
/*#define FPU_ORIG_EIP (FPU_info->___orig_eip) */
|
|
/*#define FPU_ORIG_EIP (FPU_info->tf_isp)*/
|
|
#define FPU_ORIG_EIP (I387.soft.orig_eip)
|
|
|
|
#define FPU_lookahead (I387.soft.lookahead)
|
|
#define FPU_entry_eip (I387.soft.entry_eip)
|
|
|
|
#define status_word (I387.soft.swd)
|
|
#define control_word (I387.soft.cwd)
|
|
#define regs (I387.soft.regs)
|
|
#define top (I387.soft.top)
|
|
|
|
#define ip_offset (I387.soft.fip)
|
|
#define cs_selector (I387.soft.fcs)
|
|
#define data_operand_offset (I387.soft.foo)
|
|
#define operand_selector (I387.soft.fos)
|
|
|
|
#endif
|