BSD 4_4 release

[unix-history] / usr / src / sys / tahoe / inline / inline.h

/*-
* Copyright (c) 1984 The Regents of the University of California.
* All rights reserved.
*
* 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.
*
*      @(#)inline.h    1.3 (Berkeley) 5/8/91
*/

/*
* COMMENTCHAR is the character delimiting comments in the assembler.
* LABELCHAR is the character that separates labels from instructions.
* ARGSEPCHAR is the character that separates arguments in instructions.
*/
#define COMMENTCHAR     '#'
#define LABELCHAR       ':'
#define ARGSEPCHAR      ','

/*
* Expansion parameters:
*   QUEUESIZE is the number of instructions to be considered for 
*      integration of argument pushes and pops
*   MAXLINELEN is the longest expected input line
*   MAXARGS is the maximum number of arguments in an assembly instruction
*/
#define QUEUESIZE       16
#define MAXLINELEN      128
#define MAXARGS         10

/*
* The following global variables are used to manipulate the queue of
* recently seen instructions.
*      line - The queue of instructions.
*      bufhead - Pointer to next availble queue slot. It is not
*              considered part of te instruction stream until
*              bufhead is advanced.
*      buftail - Pointer to last instruction in queue.
* Note that bufhead == buftail implies that the queue is empty.
*/
int bufhead, buftail;
char line[QUEUESIZE][MAXLINELEN];

#define SUCC(qindex) ((qindex) + 1 == QUEUESIZE ? 0 : (qindex) + 1)
#define PRED(qindex) ((qindex) - 1 < 0 ? QUEUESIZE - 1 : (qindex) - 1)

/*
* Hash table headers should be twice as big as the number of patterns.
* They must be a power of two.
*/
#define HSHSIZ  128

/*
* These tables specify the substitutions that are to be done.
*/
struct pats {
       int     args;
       char    *name;
       char    *replace;
       struct  pats *next;
       int     size;
};
struct pats *patshdr[HSHSIZ];
extern struct pats language_ptab[], libc_ptab[], machine_ptab[];

/*
* This table defines the set of instructions that demark the
* end of a basic block.
*/
struct inststoptbl {
       char    *name;
       struct  inststoptbl *next;
       int     size;
};
struct inststoptbl *inststoptblhdr[HSHSIZ];
extern struct inststoptbl inststoptable[];

/*
* Miscellaneous functions.
*/
char *newline(), *copyline(), *doreplaceon();