gas/config/tc-m88k.h

   1
   2 /* m88k.h -- Assembler for the Motorola 88000
   3    Contributed by Devon Bowen of Buffalo University
   4    and Torbjorn Granlund of the Swedish Institute of Computer Science.
   5    Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
   6
   7 This file is part of GAS, the GNU Assembler.
   8
   9 GAS is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 1, or (at your option)
  12 any later version.
  13
  14 GAS is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GAS; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  22
  23 #define TC_M88K
  24
  25 #ifdef M88KCOFF
  26 #define COFF_MAGIC MC88OMAGIC
  27 #define BFD_ARCH bfd_arch_m88k
  28 #define COFF_FLAGS F_AR32W
  29 #endif
  30
  31 #define NEED_FX_R_TYPE
  32 #define TC_KEEP_FX_OFFSET
  33 #define TC_CONS_RELOC RELOC_32
  34
  35 /* different type of relocation available in the m88k */
  36
  37 enum reloc_type
  38 {
  39   RELOC_LO16,                   /* lo16(sym) */
  40   RELOC_HI16,                   /* hi16(sym) */
  41   RELOC_PC16,                   /* bb0, bb1, bcnd */
  42   RELOC_PC26,                   /* br, bsr */
  43   RELOC_32,                     /* jump tables, etc */
  44   RELOC_IW16,                   /* global access through linker regs 28 */
  45   NO_RELOC
  46 };
  47
  48 struct reloc_info_m88k
  49 {
  50   unsigned long int r_address;
  51   unsigned int r_symbolnum:24;
  52   unsigned int r_extern:1;
  53   unsigned int r_pad:3;
  54   enum reloc_type r_type:4;
  55   long int r_addend;
  56 };
  57
  58 #define relocation_info reloc_info_m88k
  59
  60 /* The m88k uses '@' to start local labels.  */
  61 #define LEX_AT (LEX_BEGIN_NAME | LEX_NAME)
  62 #define LOCAL_LABEL(name) \
  63   ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \
  64    || (name[0] == 'L' && name[1] == '0' && name[2] == '\001'))
  65
  66 /* The m88k uses pseudo-ops with no leading period.  */
  67 #define NO_PSEUDO_DOT
  68
  69 /* Don't warn on word overflow; it happens on %hi relocs.  */
  70 #undef WARN_SIGNED_OVERFLOW_WORD
  71
  72 #ifndef BFD_ASSEMBLER
  73 #define md_convert_frag(h,f)            {as_fatal ("m88k convert_frag\n");}
  74 #else
  75 #define md_convert_frag(b,s,f)          {as_fatal ("m88k convert_frag\n");}
  76 #endif
  77
  78 /* We don't need to do anything special for undefined symbols.  */
  79 #define md_undefined_symbol(s) 0
  80
  81 /* We have no special operand handling.  */
  82 #define md_operand(e)
  83
  84 #ifdef M88KCOFF
  85
  86 /* Whether a reloc should be output.  */
  87 #define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL)
  88
  89 /* Get the BFD reloc type to use for a gas fixS structure.  */
  90 #define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)
  91
  92 /* No special hook needed for symbols.  */
  93 #define tc_coff_symbol_emit_hook(s)
  94
  95 #endif /* M88KCOFF */