gas/config/tc-i860.h

   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 */