1 /* m88k.h -- Assembler for the Motorola 88000
2 Contributed by Devon Bowen of Buffalo University
3 and Torbjorn Granlund of the Swedish Institute of Computer Science.
4 Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
5 Free Software Foundation, Inc.
7 This file is part of GAS, the GNU Assembler.
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)
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.
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #define TARGET_BYTES_BIG_ENDIAN 1
28 #define COFF_MAGIC MC88OMAGIC
29 #define BFD_ARCH bfd_arch_m88k
30 #define COFF_FLAGS F_AR32W
33 #define NEED_FX_R_TYPE
34 #define TC_KEEP_FX_OFFSET
35 #define TC_CONS_RELOC RELOC_32
37 /* different type of relocation available in the m88k */
41 RELOC_LO16
, /* lo16(sym) */
42 RELOC_HI16
, /* hi16(sym) */
43 RELOC_PC16
, /* bb0, bb1, bcnd */
44 RELOC_PC26
, /* br, bsr */
45 RELOC_32
, /* jump tables, etc */
46 RELOC_IW16
, /* global access through linker regs 28 */
50 struct reloc_info_m88k
52 unsigned long int r_address
;
53 unsigned int r_symbolnum
:24;
54 unsigned int r_extern
:1;
56 enum reloc_type r_type
:4;
60 #define relocation_info reloc_info_m88k
62 /* The m88k uses '@' to start local labels. */
63 #define LEX_AT (LEX_BEGIN_NAME | LEX_NAME)
64 #define LOCAL_LABEL(name) \
65 ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \
66 || (name[0] == 'L' && name[1] == '0' && name[2] == '\001'))
68 /* The m88k uses pseudo-ops with no leading period. */
71 /* Don't warn on word overflow; it happens on %hi relocs. */
72 #undef WARN_SIGNED_OVERFLOW_WORD
74 #define md_convert_frag(b,s,f) {as_fatal ("m88k convert_frag\n");}
76 /* We don't need to do anything special for undefined symbols. */
77 #define md_undefined_symbol(s) 0
79 /* We have no special operand handling. */
84 /* Whether a reloc should be output. */
85 #define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL)
87 /* Get the BFD reloc type to use for a gas fixS structure. */
88 #define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)
90 /* No special hook needed for symbols. */
91 #define tc_coff_symbol_emit_hook(s)
93 /* Align sections to a four byte boundary. */
95 #define max(a,b) (((a) > (b)) ? (a) : (b))
97 #define SUB_SEGMENT_ALIGN(SEG) max (section_alignment[(int) (SEG)], 4)
99 /* We use a special alignment function to insert the correct nop
101 extern int m88k_do_align
PARAMS ((int, const char *, int));
102 #define md_do_align(n,fill,len,l) if (m88k_do_align(n,fill,len)) goto l
104 #endif /* M88KCOFF */
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