home *** CD-ROM | disk | FTP | other *** search
- /* 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, 90, 91, 92, 93, 94, 95, 1996
- 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #define TC_M88K
-
- #define TARGET_BYTES_BIG_ENDIAN 1
-
- #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
-
- #define md_convert_frag(b,s,f) {as_fatal ("m88k convert_frag\n");}
-
- /* 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)
-
- /* Align sections to a four byte boundary. */
- #ifndef max
- #define max(a,b) (((a) > (b)) ? (a) : (b))
- #endif
- #define SUB_SEGMENT_ALIGN(SEG) max (section_alignment[(int) (SEG)], 4)
-
- /* We use a special alignment function to insert the correct nop
- pattern in .init. */
- extern int m88k_do_align PARAMS ((int, const char *, int));
- #define md_do_align(n,fill,len,l) if (m88k_do_align(n,fill,len)) goto l
-
- #endif /* M88KCOFF */
-