gas/config/tc-i860.h

   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
  27 enum 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.  */
  57 extern 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).  */
  87 extern 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.  */
  91 extern 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 */