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Annotation of Net2/arch/i386/include/reg.h, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1990 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * William Jolitz.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *     This product includes software developed by the University of
        !            19:  *     California, Berkeley and its contributors.
        !            20:  * 4. Neither the name of the University nor the names of its contributors
        !            21:  *    may be used to endorse or promote products derived from this software
        !            22:  *    without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  *     @(#)reg.h       5.5 (Berkeley) 1/18/91
        !            37:  */
        !            38: 
        !            39: /*
        !            40:  * Location of the users' stored
        !            41:  * registers within appropriate frame of 'trap' and 'syscall', relative to
        !            42:  * base of stack frame.
        !            43:  * Normal usage is u.u_ar0[XX] in kernel.
        !            44:  */
        !            45: 
        !            46: /* When referenced during a trap/exception, registers are at these offsets */
        !            47: 
        !            48: #define        tES     (0)
        !            49: #define        tDS     (1)
        !            50: #define        tEDI    (2)
        !            51: #define        tESI    (3)
        !            52: #define        tEBP    (4)
        !            53: 
        !            54: #define        tEBX    (6)
        !            55: #define        tEDX    (7)
        !            56: #define        tECX    (8)
        !            57: #define        tEAX    (9)
        !            58: 
        !            59: #define        tEIP    (12)
        !            60: #define        tCS     (13)
        !            61: #define        tEFLAGS (14)
        !            62: #define        tESP    (15)
        !            63: #define        tSS     (16)
        !            64: 
        !            65: /* During a system call, registers are at these offsets instead of above. */
        !            66: 
        !            67: #define        sEDI    (0)
        !            68: #define        sESI    (1)
        !            69: #define        sEBP    (2)
        !            70: 
        !            71: #define        sEBX    (4)
        !            72: #define        sEDX    (5)
        !            73: #define        sECX    (6)
        !            74: #define        sEAX    (7)
        !            75: #define        sEFLAGS (8)
        !            76: #define        sEIP    (9)
        !            77: #define        sCS     (10)
        !            78: #define        sESP    (11)
        !            79: #define        sSS     (12)
        !            80: 
        !            81: #define        PC      sEIP
        !            82: #define        SP      sESP
        !            83: #define        PS      sEFLAGS
        !            84: #define        R0      sEDX
        !            85: #define        R1      sECX
        !            86: /*
        !            87:  * Registers accessible to ptrace(2) syscall for debugger
        !            88:  */
        !            89: #ifdef IPCREG
        !            90: #define        NIPCREG 14
        !            91: int ipcreg[NIPCREG] =
        !            92:   { tES,tDS,tEDI,tESI,tEBP,tEBX,tEDX,tECX,tEAX,tEIP,tCS,tEFLAGS,tESP,tSS };
        !            93: #endif

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