i386/nasm/eval.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* eval.h   header file for eval.c
  26  *
  27  * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
  28  * Julian Hall. All rights reserved. The software is
  29  * redistributable under the licence given in the file "Licence"
  30  * distributed in the NASM archive.
  31  */
  32
  33 #ifndef NASM_EVAL_H
  34 #define NASM_EVAL_H
  35
  36 /*
  37  * Called once to tell the evaluator what output format is
  38  * providing segment-base details, and what function can be used to
  39  * look labels up.
  40  */
  41 void eval_global_info (struct ofmt *output, lfunc lookup_label);
  42
  43 /*
  44  * Called to set the information the evaluator needs: the value of
  45  * $ is set from `segment' and `offset' if `labelname' is NULL, and
  46  * otherwise the name of the current line's label is set from
  47  * `labelname' instead.
  48  */
  49 void eval_info (char *labelname, long segment, long offset);
  50
  51 /*
  52  * The evaluator itself.
  53  */
  54 expr *evaluate (scanner sc, void *scprivate, struct tokenval *tv,
  55                 int *fwref, int critical, efunc report_error,
  56                 struct eval_hints *hints);
  57
  58 #endif