1/* tc-mep.h -- Header file for tc-mep.c.
2   Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
3
4   This file is part of GAS, the GNU Assembler.
5
6   GAS is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   GAS is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with GAS; see the file COPYING.  If not, write to
18   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19   Boston, MA 02110-1301, USA. */
20
21#define TC_MEP
22
23/* Support computed relocations.  */
24#define OBJ_COMPLEX_RELC
25
26/* Support many operands per instruction.  */
27#define GAS_CGEN_MAX_FIXUPS 10
28
29#define LISTING_HEADER "MEP GAS "
30
31/* The target BFD architecture.  */
32#define TARGET_ARCH bfd_arch_mep
33
34#define TARGET_FORMAT (target_big_endian ? "elf32-mep" : "elf32-mep-little")
35
36/* This is the default.  */
37#define TARGET_BYTES_BIG_ENDIAN 1
38
39/* Permit temporary numeric labels. */
40#define LOCAL_LABELS_FB 1
41
42/* .-foo gets turned into PC relative relocs.  */
43#define DIFF_EXPR_OK
44
45/* We don't need to handle .word strangely.  */
46#define WORKING_DOT_WORD
47
48/* Values passed to md_apply_fix don't include the symbol value.  */
49#define MD_APPLY_SYM_VALUE(FIX) 0
50
51#define MD_APPLY_FIX
52#define md_apply_fix mep_apply_fix
53extern void mep_apply_fix (struct fix *, valueT *, segT);
54
55/* Call md_pcrel_from_section(), not md_pcrel_from().  */
56#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
57extern long md_pcrel_from_section (struct fix *, segT);
58
59#define tc_frob_file() mep_frob_file ()
60extern void mep_frob_file (void);
61
62#define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP)
63extern bfd_boolean mep_fix_adjustable (struct fix *);
64
65/* After creating a fixup for an instruction operand, we need
66   to check for HI16 relocs and queue them up for later sorting.  */
67#define md_cgen_record_fixup_exp  mep_cgen_record_fixup_exp
68
69/* When relaxing, we need to emit various relocs we otherwise wouldn't.  */
70#define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix)
71extern int mep_force_relocation (struct fix *);
72
73#define tc_gen_reloc gas_cgen_tc_gen_reloc
74
75extern void gas_cgen_md_operand (expressionS *);
76#define md_operand(x) gas_cgen_md_operand (x)
77
78#define md_flush_pending_output() mep_flush_pending_output()
79extern int mep_flush_pending_output(void);
80
81extern const struct relax_type md_relax_table[];
82#define TC_GENERIC_RELAX_TABLE md_relax_table
83
84/* Account for inserting a jmp after the insn.  */
85#define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4)
86
87extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
88#define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \
89	mep_prepare_relax_scan (FRAGP, &AIM, STATE)
90
91#define skip_whitespace(str) while (*(str) == ' ') ++(str)
92
93/* Support for core/vliw mode switching.  */
94#define CORE 0
95#define VLIW 1
96#define MAX_PARALLEL_INSNS 56 /* From email from Toshiba.  */
97#define VTEXT_SECTION_NAME ".vtext"
98
99/* Needed to process pending instructions when a label is encountered.  */
100#define TC_START_LABEL(ch, ptr)    ((ch == ':') && mep_flush_pending_output ())
101
102#define tc_unrecognized_line(c) mep_unrecognized_line (c)
103extern int mep_unrecognized_line (int);
104#define md_cleanup mep_cleanup
105extern void mep_cleanup (void);
106
107#define md_elf_section_letter		mep_elf_section_letter
108extern int mep_elf_section_letter (int, char **);
109#define md_elf_section_flags		mep_elf_section_flags
110extern flagword mep_elf_section_flags  (flagword, int, int);
111
112#define ELF_TC_SPECIAL_SECTIONS \
113  { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW },
114
115/* The values of the following enum are for use with parinsnum, which
116   is a variable in md_assemble that keeps track of whether or not the
117   next instruction is expected to be the first or second instrucion in
118   a parallelization group.  */
119typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN;
120