gas/config/tc-tic4x.h

   1 /* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
   2    Copyright (C) 1997, 2002, 2003, 2005, 2007, 2008
   3    Free Software Foundation. Inc.
   4
   5    Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
   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
  20    along with GAS; see the file COPYING.  If not, write to
  21    the Free Software Foundation, 51 Franklin Street - Fifth Floor,
  22    Boston, MA 02110-1301, USA.  */
  23
  24 #define TC_TIC4X
  25 #define TIC4X
  26
  27 #define TARGET_ARCH bfd_arch_tic4x
  28
  29 #define WORKING_DOT_WORD
  30
  31 /* There are a number of different formats used for local labels.  gas
  32    expects local labels either of the form `10$:' or `n:', where n is
  33    a single digit.  When LOCAL_LABEL_DOLLARS is defined labels of the
  34    form `10$:' are expected.  When LOCAL_LABEL_FB is defined labels of
  35    the form `n:' are expected.  The latter are expected to be referred
  36    to using `nf' for a forward reference of `nb' for a backward
  37    reference.
  38
  39    The local labels expected by the TI tools are of the form `$n:',
  40    where the colon is optional.  Now the $ character is considered to
  41    be valid symbol name character, so gas doesn't recognise our local
  42    symbols by default.  Defining LEX_DOLLAR to be 1 means that gas
  43    won't allow labels starting with $ and thus the hook
  44    tc_unrecognized_line() will be called from read.c.  We can thus
  45    parse lines starting with $n as having local labels.
  46
  47    The other problem is the forward reference of local labels.  If a
  48    symbol is undefined, symbol_make() calls the md_undefined_symbol()
  49    hook where we create a local label if recognised.  */
  50
  51 /* Don't stick labels starting with 'L' into symbol table of COFF file. */
  52 #define LOCAL_LABEL(name) ((name)[0] == '$' || (name)[0] == 'L')
  53
  54 #define TARGET_BYTES_BIG_ENDIAN 0
  55 #define OCTETS_PER_BYTE_POWER   2
  56
  57 #define TARGET_ARCH             bfd_arch_tic4x
  58
  59 #define TIC_NOP_OPCODE          0x0c800000
  60
  61 #define reloc_type              int
  62
  63 #define NO_RELOC                0
  64
  65 /* '||' denotes parallel instruction */
  66 #define DOUBLEBAR_PARALLEL      1
  67
  68 /* Labels are not required to have a colon for a suffix.  */
  69 #define LABELS_WITHOUT_COLONS   1
  70
  71 /* Use $ as the section program counter (SPC). */
  72 #define DOLLAR_DOT
  73
  74 /* Accept numbers with a suffix, e.g. 0ffffh, 1010b.  */
  75 #define NUMBERS_WITH_SUFFIX     1
  76
  77 extern int tic4x_unrecognized_line (int);
  78 #define tc_unrecognized_line(c) tic4x_unrecognized_line (c)
  79
  80 #define md_number_to_chars number_to_chars_littleendian
  81
  82 extern int tic4x_do_align (int, const char *, int, int);
  83 #define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;
  84
  85 /* Start of line hook to remove parallel instruction operator || */
  86 extern void tic4x_start_line (void);
  87 #define md_start_line_hook() tic4x_start_line()
  88
  89 extern void tic4x_cleanup (void);
  90 #define md_cleanup() tic4x_cleanup()
  91
  92 extern void tic4x_end (void);
  93 #define md_end() tic4x_end()
  94