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, 96, 1997
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 2, 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 the Free
21 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
26 #define TARGET_BYTES_BIG_ENDIAN 1
29 #define COFF_MAGIC MC88OMAGIC
30 #define BFD_ARCH bfd_arch_m88k
31 #define COFF_FLAGS F_AR32W
34 #define NEED_FX_R_TYPE
35 #define TC_KEEP_FX_OFFSET
36 #define TC_CONS_RELOC RELOC_32
38 /* different type of relocation available in the m88k */
42 RELOC_LO16
, /* lo16(sym) */
43 RELOC_HI16
, /* hi16(sym) */
44 RELOC_PC16
, /* bb0, bb1, bcnd */
45 RELOC_PC26
, /* br, bsr */
46 RELOC_32
, /* jump tables, etc */
47 RELOC_IW16
, /* global access through linker regs 28 */
51 struct reloc_info_m88k
53 unsigned long int r_address
;
54 unsigned int r_symbolnum
:24;
55 unsigned int r_extern
:1;
57 enum reloc_type r_type
:4;
61 #define relocation_info reloc_info_m88k
63 /* The m88k uses '@' to start local labels. */
64 #define LEX_AT (LEX_BEGIN_NAME | LEX_NAME)
67 #define LOCAL_LABEL(name) \
68 ((name[0] =='@' && (name [1] == 'L' || name [1] == '.')) \
69 || (name[0] == 'L' && name[1] == '0' && name[2] == '\001'))
72 /* The m88k uses pseudo-ops with no leading period. */
75 /* Don't warn on word overflow; it happens on %hi relocs. */
76 #undef WARN_SIGNED_OVERFLOW_WORD
78 #define md_convert_frag(b,s,f) {as_fatal (_("m88k convert_frag\n"));}
80 /* We don't need to do anything special for undefined symbols. */
81 #define md_undefined_symbol(s) 0
83 /* We have no special operand handling. */
88 /* Whether a reloc should be output. */
89 #define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL)
91 /* Get the BFD reloc type to use for a gas fixS structure. */
92 #define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)
94 /* No special hook needed for symbols. */
95 #define tc_coff_symbol_emit_hook(s)
97 /* Align sections to a four byte boundary. */
99 #define max(a,b) (((a) > (b)) ? (a) : (b))
101 #define SUB_SEGMENT_ALIGN(SEG) max (section_alignment[(int) (SEG)], 4)
103 /* We use a special alignment function to insert the correct nop
105 extern int m88k_do_align
PARAMS ((int, const char *, int, int));
106 #define md_do_align(n,fill,len,max,l) if (m88k_do_align(n,fill,max,len)) goto l
108 #endif /* M88KCOFF */
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