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Annotation of sys/arch/vax/bi/kdbreg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: kdbreg.h,v 1.5 2003/06/02 23:27:57 millert Exp $ */
        !             2: /*     $NetBSD: kdbreg.h,v 1.3 1999/11/03 21:57:40 ragge Exp $ */
        !             3: /*
        !             4:  * Copyright (c) 1988 Regents of the University of California.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * This code is derived from software contributed to Berkeley by
        !             8:  * Chris Torek.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. Neither the name of the University nor the names of its contributors
        !            19:  *    may be used to endorse or promote products derived from this software
        !            20:  *    without specific prior written permission.
        !            21:  *
        !            22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            32:  * SUCH DAMAGE.
        !            33:  *
        !            34:  *     @(#)kdbreg.h    7.3 (Berkeley) 6/28/90
        !            35:  */
        !            36:
        !            37: /*
        !            38:  * The KDB50 registers are embedded inside the bi interface
        !            39:  * general-purpose registers.
        !            40:  */
        !            41: #ifdef notdef
        !            42: struct kdb_regs {
        !            43:        struct  biiregs kdb_bi;
        !            44:        short   kdb_xxx;        /* first half of GPR 0 unused */
        !            45:        short   kdb_ip;         /* initialisation and polling */
        !            46:        short   kdb_sa;         /* status & address (r/o half) */
        !            47:        short   kdb_sw;         /* status & address (w/o half) */
        !            48: };
        !            49: #endif
        !            50:
        !            51: #define        KDB_IP  0xf2
        !            52: #define        KDB_SA  0xf4
        !            53: #define        KDB_SW  0xf6
        !            54:
        !            55: #define KDBSR_BITS \
        !            56: "\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO"
        !            57:
        !            58: /*
        !            59:  * Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells
        !            60:  * the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer
        !            61:  * as an offset value.  Hence we need no mappings; the KDB50 reads
        !            62:  * the hardware page tables directly.  (Without KDB_MAP, seq_bufer
        !            63:  * represents the physical memory address instead, and seq_mapbase is
        !            64:  * unused.)
        !            65:  */
        !            66: #define        KDB_MAP         0x80000000
        !            67: #define        KDB_PHYS        0               /* pseudo flag */