1/* tc-i860.h -- Header file for the i860.
2   Copyright 1991, 1992, 1995, 1998, 2000, 2001, 2002, 2003, 2005
3   Free Software Foundation, Inc.
4
5   Brought back from the dead and completely reworked
6   by Jason Eckhardt <jle@cygnus.com>.
7
8   This file is part of GAS, the GNU Assembler.
9
10   GAS is free software; you can redistribute it and/or modify
11   it under the terms of the GNU General Public License as published by
12   the Free Software Foundation; either version 2, or (at your option)
13   any later version.
14
15   GAS is distributed in the hope that it will be useful,
16   but WITHOUT ANY WARRANTY; without even the implied warranty of
17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18   GNU General Public License for more details.
19
20   You should have received a copy of the GNU General Public License along
21   with GAS; see the file COPYING.  If not, write to the Free Software
22   Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
23
24#ifndef TC_I860
25#define TC_I860 1
26
27enum i860_fix_info
28{
29  OP_NONE	 = 0x00000,
30  OP_IMM_U5	 = 0x00001,
31  OP_IMM_S16	 = 0x00002,
32  OP_IMM_U16	 = 0x00004,
33  OP_IMM_SPLIT16 = 0x00008,
34  OP_IMM_BR26	 = 0x00010,
35  OP_IMM_BR16	 = 0x00020,
36  OP_ENCODE1	 = 0x00040,
37  OP_ENCODE2	 = 0x00080,
38  OP_ENCODE3	 = 0x00100,
39  OP_SEL_HA	 = 0x00200,
40  OP_SEL_H	 = 0x00400,
41  OP_SEL_L	 = 0x00800,
42  OP_SEL_GOT	 = 0x01000,
43  OP_SEL_GOTOFF	 = 0x02000,
44  OP_SEL_PLT	 = 0x04000,
45  OP_ALIGN2	 = 0x08000,
46  OP_ALIGN4	 = 0x10000,
47  OP_ALIGN8	 = 0x20000,
48  OP_ALIGN16	 = 0x40000
49};
50
51/* Set the endianness we are using.  Default to little endian.  */
52#ifndef TARGET_BYTES_BIG_ENDIAN
53#define TARGET_BYTES_BIG_ENDIAN 0
54#endif
55
56/* Whether or not the target is big endian.  */
57extern int target_big_endian;
58
59/* BFD target architecture.  */
60#define TARGET_ARCH     bfd_arch_i860
61
62/* The target BFD format.  */
63#ifdef OBJ_ELF
64#define TARGET_FORMAT (target_big_endian ? "elf32-i860" : "elf32-i860-little")
65#else
66#error i860 GAS currently supports only the ELF object format
67#endif
68
69#define WORKING_DOT_WORD
70#define DIFF_EXPR_OK
71
72/* Permit temporary numeric labels.  */
73#define LOCAL_LABELS_FB		1
74#define LISTING_HEADER		"GAS for i860"
75
76#define md_convert_frag(b,s,f)  as_fatal (_("i860_convert_frag\n"));
77
78/* Values passed to md_apply_fix don't include the symbol value.  */
79#define MD_APPLY_SYM_VALUE(FIX) 0
80
81/* No shared lib support, so we don't need to ensure externally
82   visible symbols can be overridden.  */
83#define EXTERN_FORCE_RELOC 0
84
85/* Bits for post-processing of a user defined label to check if
86   it has a double colon (Intel syntax only).  */
87extern void i860_check_label (symbolS *labelsym);
88#define tc_check_label(ls)	i860_check_label (ls)
89
90/* Bits for filling in rs_align_code fragments with NOPs.  */
91extern void i860_handle_align (struct frag *);
92#define HANDLE_ALIGN(fragp) i860_handle_align (fragp)
93
94#define MAX_MEM_FOR_RS_ALIGN_CODE  (3 + 4 + 4)
95
96#endif /* TC_I860 */
97