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Annotation of Net2/arch/vax/inline/inline.h, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1984, 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)inline.h    7.2 (Berkeley) 5/8/91
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * COMMENTCHAR is the character delimiting comments in the assembler.
        !            38:  * LABELCHAR is the character that separates labels from instructions.
        !            39:  * ARGSEPCHAR is the character that separates arguments in instructions.
        !            40:  */
        !            41: #define COMMENTCHAR    '#'
        !            42: #define LABELCHAR      ':'
        !            43: #define ARGSEPCHAR     ','
        !            44: 
        !            45: /*
        !            46:  * Expansion parameters:
        !            47:  *   QUEUESIZE is the number of instructions to be considered for 
        !            48:  *     integration of argument pushes and pops
        !            49:  *   MAXLINELEN is the longest expected input line
        !            50:  *   MAXARGS is the maximum number of arguments in an assembly instruction
        !            51:  */
        !            52: #define QUEUESIZE      16
        !            53: #define MAXLINELEN     1024
        !            54: #define MAXARGS                10
        !            55: 
        !            56: /*
        !            57:  * The following global variables are used to manipulate the queue of
        !            58:  * recently seen instructions.
        !            59:  *     line - The queue of instructions.
        !            60:  *     bufhead - Pointer to next availble queue slot. It is not
        !            61:  *             considered part of te instruction stream until
        !            62:  *             bufhead is advanced.
        !            63:  *     buftail - Pointer to last instruction in queue.
        !            64:  * Note that bufhead == buftail implies that the queue is empty.
        !            65:  */
        !            66: int bufhead, buftail;
        !            67: char line[QUEUESIZE][MAXLINELEN];
        !            68: 
        !            69: #define SUCC(qindex) ((qindex) + 1 == QUEUESIZE ? 0 : (qindex) + 1)
        !            70: #define PRED(qindex) ((qindex) - 1 < 0 ? QUEUESIZE - 1 : (qindex) - 1)
        !            71: 
        !            72: /*
        !            73:  * Hash table headers should be twice as big as the number of patterns.
        !            74:  * They must be a power of two.
        !            75:  */
        !            76: #define HSHSIZ 128
        !            77: 
        !            78: /*
        !            79:  * These tables specify the substitutions that are to be done.
        !            80:  */
        !            81: struct pats {
        !            82:        int     args;
        !            83:        char    *name;
        !            84:        char    *replace;
        !            85:        struct  pats *next;
        !            86:        int     size;
        !            87: };
        !            88: struct pats *patshdr[HSHSIZ];
        !            89: extern struct pats language_ptab[], libc_ptab[], machine_ptab[];
        !            90: extern struct pats vax_libc_ptab[], vaxsubset_libc_ptab[];
        !            91: extern struct pats vax_ptab[], vaxsubset_ptab[];
        !            92: 
        !            93: /*
        !            94:  * This table defines the set of instructions that demark the
        !            95:  * end of a basic block.
        !            96:  */
        !            97: struct inststoptbl {
        !            98:        char    *name;
        !            99:        struct  inststoptbl *next;
        !           100:        int     size;
        !           101: };
        !           102: struct inststoptbl *inststoptblhdr[HSHSIZ];
        !           103: extern struct inststoptbl inststoptable[];
        !           104: 
        !           105: /*
        !           106:  * Miscellaneous functions.
        !           107:  */
        !           108: char *newline(), *copyline(), *doreplaceon();

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