1 /* tc-i860.h -- Header file for the i860. 2 Copyright 1991, 1992, 1995, 1998, 2000, 2001, 2002 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 23 24 #ifndef TC_I860 25 #define TC_I860 1 26 27 #ifndef BFD_ASSEMBLER 28 #error i860 support requires BFD_ASSEMBLER 29 #endif 30 31 enum i860_fix_info 32 { 33 OP_NONE = 0x00000, 34 OP_IMM_U5 = 0x00001, 35 OP_IMM_S16 = 0x00002, 36 OP_IMM_U16 = 0x00004, 37 OP_IMM_SPLIT16 = 0x00008, 38 OP_IMM_BR26 = 0x00010, 39 OP_IMM_BR16 = 0x00020, 40 OP_ENCODE1 = 0x00040, 41 OP_ENCODE2 = 0x00080, 42 OP_ENCODE3 = 0x00100, 43 OP_SEL_HA = 0x00200, 44 OP_SEL_H = 0x00400, 45 OP_SEL_L = 0x00800, 46 OP_SEL_GOT = 0x01000, 47 OP_SEL_GOTOFF = 0x02000, 48 OP_SEL_PLT = 0x04000, 49 OP_ALIGN2 = 0x08000, 50 OP_ALIGN4 = 0x10000, 51 OP_ALIGN8 = 0x20000, 52 OP_ALIGN16 = 0x40000 53 }; 54 55 /* Set the endianness we are using. Default to little endian. */ 56 #ifndef TARGET_BYTES_BIG_ENDIAN 57 #define TARGET_BYTES_BIG_ENDIAN 0 58 #endif 59 60 /* Whether or not the target is big endian. */ 61 extern int target_big_endian; 62 63 /* BFD target architecture. */ 64 #define TARGET_ARCH bfd_arch_i860 65 66 /* The target BFD format. */ 67 #ifdef OBJ_ELF 68 #define TARGET_FORMAT (target_big_endian ? "elf32-i860" : "elf32-i860-little") 69 #else 70 #error i860 GAS currently supports only the ELF object format 71 #endif 72 73 #define WORKING_DOT_WORD 74 #define DIFF_EXPR_OK 75 76 /* Permit temporary numeric labels. */ 77 #define LOCAL_LABELS_FB 1 78 #define LISTING_HEADER "GAS for i860" 79 80 #define md_convert_frag(b,s,f) as_fatal (_("i860_convert_frag\n")); 81 82 /* Values passed to md_apply_fix3 don't include the symbol value. */ 83 #define MD_APPLY_SYM_VALUE(FIX) 0 84 85 /* No shared lib support, so we don't need to ensure externally 86 visible symbols can be overridden. */ 87 #define EXTERN_FORCE_RELOC 0 88 89 /* Bits for post-processing of a user defined label to check if 90 it has a double colon (Intel syntax only). */ 91 extern void i860_check_label (symbolS *labelsym); 92 #define tc_check_label(ls) i860_check_label (ls) 93 94 /* Bits for filling in rs_align_code fragments with NOPs. */ 95 extern void i860_handle_align (struct frag *); 96 #define HANDLE_ALIGN(fragp) i860_handle_align (fragp) 97 98 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) 99 100 #endif /* TC_I860 */ 101