| 1 | /* m88k.h -- Assembler for the Motorola 88000
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| 2 | Contributed by Devon Bowen of Buffalo University
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| 3 | and Torbjorn Granlund of the Swedish Institute of Computer Science.
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| 4 | Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000,
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| 5 | 2002 Free Software Foundation, Inc.
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| 6 |
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| 7 | This file is part of GAS, the GNU Assembler.
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| 8 |
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| 9 | GAS is free software; you can redistribute it and/or modify
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| 10 | it under the terms of the GNU General Public License as published by
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| 11 | the Free Software Foundation; either version 2, or (at your option)
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| 12 | any later version.
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| 13 |
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| 14 | GAS is distributed in the hope that it will be useful,
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | GNU General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU General Public License
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| 20 | along with GAS; see the file COPYING. If not, write to the Free
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| 21 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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| 22 | 02111-1307, USA. */
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| 23 |
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| 24 | #define TC_M88K
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| 25 |
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| 26 | #define TARGET_BYTES_BIG_ENDIAN 1
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| 27 |
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| 28 | #ifdef M88KCOFF
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| 29 | #define COFF_MAGIC MC88OMAGIC
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| 30 | #define BFD_ARCH bfd_arch_m88k
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| 31 | #define COFF_FLAGS F_AR32W
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| 32 | #endif
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| 33 |
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| 34 | #define NEED_FX_R_TYPE
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| 35 | #define TC_KEEP_FX_OFFSET
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| 36 | #define TC_CONS_RELOC RELOC_32
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| 37 |
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| 38 | /* different type of relocation available in the m88k */
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| 39 |
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| 40 | enum reloc_type
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| 41 | {
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| 42 | RELOC_LO16, /* lo16(sym) */
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| 43 | RELOC_HI16, /* hi16(sym) */
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| 44 | RELOC_PC16, /* bb0, bb1, bcnd */
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| 45 | RELOC_PC26, /* br, bsr */
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| 46 | RELOC_32, /* jump tables, etc */
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| 47 | RELOC_IW16, /* global access through linker regs 28 */
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| 48 | NO_RELOC
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| 49 | };
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| 50 |
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| 51 | struct reloc_info_m88k
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| 52 | {
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| 53 | unsigned long int r_address;
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| 54 | unsigned int r_symbolnum:24;
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| 55 | unsigned int r_extern:1;
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| 56 | unsigned int r_pad:3;
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| 57 | enum reloc_type r_type:4;
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| 58 | long int r_addend;
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| 59 | };
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| 60 |
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| 61 | #define relocation_info reloc_info_m88k
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| 62 |
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| 63 | /* The m88k uses '@' to start local labels. */
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| 64 | #define LEX_AT (LEX_BEGIN_NAME | LEX_NAME)
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| 65 |
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| 66 | #ifndef BFD_ASSEMBLER
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| 67 | #define LOCAL_LABEL(name) \
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| 68 | ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \
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| 69 | || (name[0] == 'L' && name[1] == '0' && name[2] == '\001'))
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| 70 | #endif
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| 71 |
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| 72 | /* The m88k uses pseudo-ops with no leading period. */
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| 73 | #define NO_PSEUDO_DOT 1
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| 74 |
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| 75 | /* Don't warn on word overflow; it happens on %hi relocs. */
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| 76 | #undef WARN_SIGNED_OVERFLOW_WORD
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| 77 |
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| 78 | #define md_convert_frag(b,s,f) {as_fatal (_("m88k convert_frag\n"));}
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| 79 |
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| 80 | /* We don't need to do anything special for undefined symbols. */
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| 81 | #define md_undefined_symbol(s) 0
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| 82 |
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| 83 | /* We have no special operand handling. */
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| 84 | #define md_operand(e)
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| 85 |
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| 86 | #ifdef M88KCOFF
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| 87 |
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| 88 | /* Whether a reloc should be output. */
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| 89 | #define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL)
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| 90 |
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| 91 | /* Get the BFD reloc type to use for a gas fixS structure. */
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| 92 | #define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)
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| 93 |
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| 94 | /* No special hook needed for symbols. */
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| 95 | #define tc_coff_symbol_emit_hook(s)
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| 96 |
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| 97 | /* Align sections to a four byte boundary. */
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| 98 | #ifndef max
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| 99 | #define max(a,b) (((a) > (b)) ? (a) : (b))
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| 100 | #endif
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| 101 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) max (section_alignment[(int) (SEG)], 4)
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| 102 |
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| 103 | /* Fill in rs_align_code fragments. */
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| 104 | extern void m88k_handle_align PARAMS ((fragS *));
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| 105 | #define HANDLE_ALIGN(frag) m88k_handle_align (frag)
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| 106 |
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| 107 | #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4)
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| 108 |
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| 109 | #endif /* M88KCOFF */
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