1/* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
2   Copyright (C) 1997, 2002, 2003, 2005 Free Software Foundation.
3
4   Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
5
6   This file is part of GAS, the GNU Assembler.
7
8   GAS is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 2, or (at your option)
11   any later version.
12
13   GAS is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with GAS; see the file COPYING.  If not, write to
20   the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
21
22#define TC_TIC4X
23#define TIC4X
24
25#define TARGET_ARCH bfd_arch_tic4x
26
27#define WORKING_DOT_WORD
28
29/* There are a number of different formats used for local labels.  gas
30   expects local labels either of the form `10$:' or `n:', where n is
31   a single digit.  When LOCAL_LABEL_DOLLARS is defined labels of the
32   form `10$:' are expected.  When LOCAL_LABEL_FB is defined labels of
33   the form `n:' are expected.  The latter are expected to be referred
34   to using `nf' for a forward reference of `nb' for a backward
35   reference.
36
37   The local labels expected by the TI tools are of the form `$n:',
38   where the colon is optional.  Now the $ character is considered to
39   be valid symbol name character, so gas doesn't recognise our local
40   symbols by default.  Defining LEX_DOLLAR to be 1 means that gas
41   won't allow labels starting with $ and thus the hook
42   tc_unrecognized_line() will be called from read.c.  We can thus
43   parse lines starting with $n as having local labels.
44
45   The other problem is the forward reference of local labels.  If a
46   symbol is undefined, symbol_make() calls the md_undefined_symbol()
47   hook where we create a local label if recognised.  */
48
49/* Don't stick labels starting with 'L' into symbol table of COFF file. */
50#define LOCAL_LABEL(name) ((name)[0] == '$' || (name)[0] == 'L')
51
52#define TARGET_BYTES_BIG_ENDIAN	0
53#define OCTETS_PER_BYTE_POWER 	2
54
55#define TARGET_ARCH		bfd_arch_tic4x
56
57#define TIC_NOP_OPCODE		0x0c800000
58
59#define reloc_type 		int
60
61#define NO_RELOC 		0
62
63/* '||' denotes parallel instruction */
64#define DOUBLEBAR_PARALLEL      1
65
66/* Labels are not required to have a colon for a suffix.  */
67#define LABELS_WITHOUT_COLONS 	1
68
69/* Use $ as the section program counter (SPC). */
70#define DOLLAR_DOT
71
72/* Accept numbers with a suffix, e.g. 0ffffh, 1010b.  */
73#define NUMBERS_WITH_SUFFIX 	1
74
75extern int tic4x_unrecognized_line PARAMS ((int));
76#define tc_unrecognized_line(c) tic4x_unrecognized_line (c)
77
78#define md_number_to_chars number_to_chars_littleendian
79
80extern int tic4x_do_align PARAMS ((int, const char *, int, int));
81#define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;
82
83/* Start of line hook to remove parallel instruction operator || */
84extern void tic4x_start_line PARAMS ((void));
85#define md_start_line_hook() tic4x_start_line()
86
87extern void tic4x_cleanup PARAMS ((void));
88#define md_cleanup() tic4x_cleanup()
89
90extern void tic4x_end PARAMS ((void));
91#define md_end() tic4x_end()
92
93