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/* $NetBSD: pcb.h,v 1.6 1995/03/28 18:18:24 jtc Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
*
* @(#)pcb.h 5.10 (Berkeley) 5/12/91
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
/*
* PC 532 process control block
*
* Phil Nelson, 12/8/92
*
*/
/* The registers as pushed from a trap/interrupt with the
exception of USP and SB, and they are placed by software. */
struct on_stack {
long pcb_reg[8]; /* R7 - R0 from enter */
long pcb_usp; /* User stack pointer, by software. */
long pcb_sb; /* Static Base pointer, by software. */
long pcb_fp; /* From enter */
long pcb_pc; /* From the trap/interrupt */
u_short pcb_mod; /* in direct exception mode. */
u_short pcb_psr;
};
struct pcb {
/* Put in a pointer to the trap/interrupt frame. */
struct on_stack *pcb_onstack;
/* Floating point stuff */
long pcb_fsr; /* fpu status reg */
double pcb_freg[8]; /* F0 - F7 */
/* Saved during a "swtch" */
long pcb_ksp; /* Kernel stack -- sp0. */
long pcb_kfp; /* Kernel fp. */
long pcb_ptb; /* ptb0 */
long pcb_pl; /* "processor level" */
/*
* Software pcb (extension)
*/
u_short pcb_flags; /* Used? PAN */
caddr_t pcb_onfault; /* copyin/out fault recovery */
};
/*
* The pcb is augmented with machine-dependent additional data for
* core dumps. For the pc532, there is nothing to add.
*/
struct md_coredump {
long md_pad[8];
};
#ifdef _KERNEL
struct pcb *curpcb; /* our current running pcb */
#endif
#endif
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