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      1 /* tc-tic54x.h -- Header file for tc-tic54x.c
      2    Copyright (C) 1999-2014 Free Software Foundation, Inc.
      3    Contributed by Timothy Wall (twall (at) alum.mit.edu)
      4 
      5    This file is part of GAS, the GNU Assembler.
      6 
      7    GAS is free software; you can redistribute it and/or modify
      8    it under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3, or (at your option)
     10    any later version.
     11 
     12    GAS is distributed in the hope that it will be useful,
     13    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15    GNU General Public License for more details.
     16 
     17    You should have received a copy of the GNU General Public License
     18    along with GAS; see the file COPYING.  If not, write to the Free
     19    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
     20    02110-1301, USA.  */
     21 
     22 #ifndef _TC_TIC54X_H_
     23 #define _TC_TIC54X_H_
     24 
     25 /* select the proper coff format (see obj-coff.h) */
     26 #define TC_TIC54X
     27 
     28 #define TARGET_BYTES_BIG_ENDIAN	0
     29 #define OCTETS_PER_BYTE_POWER 1
     30 
     31 #define TARGET_ARCH		bfd_arch_tic54x
     32 
     33 #define WORKING_DOT_WORD        1
     34 
     35 #define MAX_OPERANDS 4
     36 #define PARALLEL_SEPARATOR '|'
     37 #define LABELS_WITHOUT_COLONS 1
     38 /* accept 0FFFFh, 1010b, etc.  */
     39 #define NUMBERS_WITH_SUFFIX 1
     40 /* $ is section program counter */
     41 #define DOLLAR_DOT 1
     42 /* accept parallel lines like
     43        add #1,a  ||  ld #1, b
     44        (may also be split across lines)
     45 */
     46 #define DOUBLEBAR_PARALLEL 1
     47 /* affects preprocessor */
     48 #define KEEP_WHITE_AROUND_COLON 1
     49 
     50 struct bit_info
     51 {
     52   segT seg;
     53 #define TYPE_SPACE 0
     54 #define TYPE_BES   1
     55 #define TYPE_FIELD 2
     56   int type;
     57   symbolS *sym;
     58   valueT value;
     59   char *where;
     60   int offset;
     61 };
     62 
     63 /* We sometimes need to keep track of bit offsets within words */
     64 #define TC_FRAG_TYPE int
     65 #define TC_FRAG_INIT(FRAGP) do {(FRAGP)->tc_frag_data = 0;}while (0)
     66 
     67 /* tell GAS whether the given token is indeed a code label */
     68 #define TC_START_LABEL_WITHOUT_COLON(c,ptr) tic54x_start_label(c,ptr)
     69 extern int tic54x_start_label (int, char *);
     70 
     71 /* custom handling for relocations in cons expressions */
     72 #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC)	\
     73   tic54x_cons_fix_new (FRAG, OFF, LEN, EXP, RELOC)
     74 extern void tic54x_cons_fix_new (fragS *, int, int, expressionS *,
     75 				 bfd_reloc_code_real_type);
     76 
     77 /* Define md_number_to_chars as the appropriate standard big endian or
     78    little endian function.  Mostly littleendian, but longwords and floats are
     79    stored MS word first.
     80 */
     81 
     82 #define md_number_to_chars tic54x_number_to_chars
     83 extern void tic54x_number_to_chars (char *, valueT, int);
     84 #define tc_adjust_symtab() tic54x_adjust_symtab()
     85 extern void tic54x_adjust_symtab (void);
     86 #define tc_unrecognized_line(ch) tic54x_unrecognized_line(ch)
     87 extern int tic54x_unrecognized_line (int ch);
     88 #define md_parse_name(s,e,m,c) tic54x_parse_name(s,e)
     89 extern int tic54x_parse_name (char *name, expressionS *e);
     90 #define md_undefined_symbol(s) tic54x_undefined_symbol(s)
     91 extern symbolS *tic54x_undefined_symbol (char *name);
     92 #define md_macro_start() tic54x_macro_start()
     93 extern void tic54x_macro_start (void);
     94 #define md_macro_end() tic54x_macro_end()
     95 extern void tic54x_macro_end (void);
     96 #define md_macro_info(args) tic54x_macro_info(args)
     97 struct macro_struct;
     98 extern void tic54x_macro_info (const struct macro_struct *);
     99 #define tc_frob_label(sym) tic54x_define_label (sym)
    100 extern void tic54x_define_label (symbolS *);
    101 
    102 #define md_start_line_hook() tic54x_start_line_hook()
    103 extern void tic54x_start_line_hook (void);
    104 
    105 #define md_estimate_size_before_relax(f,s) \
    106 tic54x_estimate_size_before_relax(f,s)
    107 extern int tic54x_estimate_size_before_relax(fragS *, segT);
    108 
    109 #define md_relax_frag(seg, f,s) tic54x_relax_frag(f,s)
    110 extern int tic54x_relax_frag(fragS *, long);
    111 
    112 #define md_convert_frag(b,s,f)	tic54x_convert_frag(b,s,f)
    113 extern void tic54x_convert_frag(bfd *, segT, fragS *);
    114 
    115 /* Other things we don't support...  */
    116 
    117 /* Define away the call to md_operand in the expression parsing code.
    118    This is called whenever the expression parser can't parse the input
    119    and gives the assembler backend a chance to deal with it instead.  */
    120 
    121 #define md_operand(X)
    122 
    123 /* spruce up the listing output */
    124 #define LISTING_WORD_SIZE 2
    125 
    126 extern void tic54x_global (int);
    127 
    128 #endif
    129