i386/nasm/eval.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /* eval.h   header file for eval.c
  25  *
  26  * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
  27  * Julian Hall. All rights reserved. The software is
  28  * redistributable under the licence given in the file "Licence"
  29  * distributed in the NASM archive.
  30  */
  31
  32 #ifndef NASM_EVAL_H
  33 #define NASM_EVAL_H
  34
  35 /*
  36  * Called once to tell the evaluator what output format is
  37  * providing segment-base details, and what function can be used to
  38  * look labels up.
  39  */
  40 void eval_global_info (struct ofmt *output, lfunc lookup_label);
  41
  42 /*
  43  * Called to set the information the evaluator needs: the value of
  44  * $ is set from `segment' and `offset' if `labelname' is NULL, and
  45  * otherwise the name of the current line's label is set from
  46  * `labelname' instead.
  47  */
  48 void eval_info (char *labelname, long segment, long offset);
  49
  50 /*
  51  * The evaluator itself.
  52  */
  53 expr *evaluate (scanner sc, void *scprivate, struct tokenval *tv,
  54                 int *fwref, int critical, efunc report_error,
  55                 struct eval_hints *hints);
  56
  57 #endif