
/* m88k.h -- Assembler for the Motorola 88000
   Contributed by Devon Bowen of Buffalo University
   and Torbjorn Granlund of the Swedish Institute of Computer Science.
   Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.

This file is part of GAS, the GNU Assembler.

GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.

GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

#define TC_M88K

#ifdef M88KCOFF
#define COFF_MAGIC MC88OMAGIC
#define BFD_ARCH bfd_arch_m88k
#define COFF_FLAGS F_AR32W
#endif

#define NEED_FX_R_TYPE
#define TC_KEEP_FX_OFFSET
#define TC_CONS_RELOC RELOC_32

/* different type of relocation available in the m88k */

enum reloc_type
{
  RELOC_LO16,			/* lo16(sym) */
  RELOC_HI16,			/* hi16(sym) */
  RELOC_PC16,			/* bb0, bb1, bcnd */
  RELOC_PC26,			/* br, bsr */
  RELOC_32,			/* jump tables, etc */
  RELOC_IW16,			/* global access through linker regs 28 */
  NO_RELOC
};

struct reloc_info_m88k
{
  unsigned long int r_address;
  unsigned int r_symbolnum:24;
  unsigned int r_extern:1;
  unsigned int r_pad:3;
  enum reloc_type r_type:4;
  long int r_addend;
};

#define relocation_info reloc_info_m88k

/* The m88k uses '@' to start local labels.  */
#define LEX_AT (LEX_BEGIN_NAME | LEX_NAME)
#define LOCAL_LABEL(name) \
  ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \
   || (name[0] == 'L' && name[1] == '0' && name[2] == '\001'))

/* The m88k uses pseudo-ops with no leading period.  */
#define NO_PSEUDO_DOT

/* Don't warn on word overflow; it happens on %hi relocs.  */
#undef WARN_SIGNED_OVERFLOW_WORD

#ifndef BFD_ASSEMBLER
#define md_convert_frag(h,f)		{as_fatal ("m88k convert_frag\n");}
#else
#define md_convert_frag(b,s,f)		{as_fatal ("m88k convert_frag\n");}
#endif

/* We don't need to do anything special for undefined symbols.  */
#define md_undefined_symbol(s) 0

/* We have no special operand handling.  */
#define md_operand(e)

#ifdef M88KCOFF

/* Whether a reloc should be output.  */
#define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL)

/* Get the BFD reloc type to use for a gas fixS structure.  */
#define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)

/* No special hook needed for symbols.  */
#define tc_coff_symbol_emit_hook(s)

#endif /* M88KCOFF */
