| 1 | /* tc-i860.h -- Header file for the i860. |
| 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
| 3 | |
| 4 | Brought back from the dead and completely reworked |
| 5 | by Jason Eckhardt <jle@cygnus.com>. |
| 6 | |
| 7 | This file is part of GAS, the GNU Assembler. |
| 8 | |
| 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 3, or (at your option) |
| 12 | any later version. |
| 13 | |
| 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. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License along |
| 20 | with GAS; see the file COPYING. If not, write to the Free Software |
| 21 | Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 22 | |
| 23 | #ifndef TC_I860 |
| 24 | #define TC_I860 1 |
| 25 | |
| 26 | enum i860_fix_info |
| 27 | { |
| 28 | OP_NONE = 0x00000, |
| 29 | OP_IMM_U5 = 0x00001, |
| 30 | OP_IMM_S16 = 0x00002, |
| 31 | OP_IMM_U16 = 0x00004, |
| 32 | OP_IMM_SPLIT16 = 0x00008, |
| 33 | OP_IMM_BR26 = 0x00010, |
| 34 | OP_IMM_BR16 = 0x00020, |
| 35 | OP_ENCODE1 = 0x00040, |
| 36 | OP_ENCODE2 = 0x00080, |
| 37 | OP_ENCODE3 = 0x00100, |
| 38 | OP_SEL_HA = 0x00200, |
| 39 | OP_SEL_H = 0x00400, |
| 40 | OP_SEL_L = 0x00800, |
| 41 | OP_SEL_GOT = 0x01000, |
| 42 | OP_SEL_GOTOFF = 0x02000, |
| 43 | OP_SEL_PLT = 0x04000, |
| 44 | OP_ALIGN2 = 0x08000, |
| 45 | OP_ALIGN4 = 0x10000, |
| 46 | OP_ALIGN8 = 0x20000, |
| 47 | OP_ALIGN16 = 0x40000 |
| 48 | }; |
| 49 | |
| 50 | /* Set the endianness we are using. Default to little endian. */ |
| 51 | #ifndef TARGET_BYTES_BIG_ENDIAN |
| 52 | #define TARGET_BYTES_BIG_ENDIAN 0 |
| 53 | #endif |
| 54 | |
| 55 | /* Whether or not the target is big endian. */ |
| 56 | extern int target_big_endian; |
| 57 | |
| 58 | /* BFD target architecture. */ |
| 59 | #define TARGET_ARCH bfd_arch_i860 |
| 60 | |
| 61 | /* The target BFD format. */ |
| 62 | #ifdef OBJ_ELF |
| 63 | #define TARGET_FORMAT (target_big_endian ? "elf32-i860" : "elf32-i860-little") |
| 64 | #else |
| 65 | #error i860 GAS currently supports only the ELF object format |
| 66 | #endif |
| 67 | |
| 68 | #define WORKING_DOT_WORD |
| 69 | #define DIFF_EXPR_OK |
| 70 | |
| 71 | /* Permit temporary numeric labels. */ |
| 72 | #define LOCAL_LABELS_FB 1 |
| 73 | #define LISTING_HEADER "GAS for i860" |
| 74 | |
| 75 | #define md_convert_frag(b,s,f) abort () |
| 76 | |
| 77 | /* Values passed to md_apply_fix don't include the symbol value. */ |
| 78 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
| 79 | |
| 80 | /* No shared lib support, so we don't need to ensure externally |
| 81 | visible symbols can be overridden. */ |
| 82 | #define EXTERN_FORCE_RELOC 0 |
| 83 | |
| 84 | /* Bits for post-processing of a user defined label to check if |
| 85 | it has a double colon (Intel syntax only). */ |
| 86 | extern void i860_check_label (symbolS *labelsym); |
| 87 | #define tc_check_label(ls) i860_check_label (ls) |
| 88 | |
| 89 | /* Bits for filling in rs_align_code fragments with NOPs. */ |
| 90 | extern void i860_handle_align (struct frag *); |
| 91 | #define HANDLE_ALIGN(fragp) i860_handle_align (fragp) |
| 92 | |
| 93 | #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) |
| 94 | |
| 95 | #endif /* TC_I860 */ |