Home | History | Annotate | Download | only in config
      1 /* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X.
      2    Copyright (C) 1997-2014 Free Software Foundation, Inc.
      3 
      4    Contributed by Michael P. Hayes (m.hayes (at) elec.canterbury.ac.nz)
      5 
      6    This file is part of GAS, the GNU Assembler.
      7 
      8    GAS is free software; you can redistribute it and/or modify
      9    it under the terms of the GNU General Public License as published by
     10    the Free Software Foundation; either version 3, or (at your option)
     11    any later version.
     12 
     13    GAS is distributed in the hope that it will be useful,
     14    but WITHOUT ANY WARRANTY; without even the implied warranty of
     15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16    GNU General Public License for more details.
     17 
     18    You should have received a copy of the GNU General Public License
     19    along with GAS; see the file COPYING.  If not, write to
     20    the Free Software Foundation, 51 Franklin Street - Fifth Floor,
     21    Boston, MA 02110-1301, USA.  */
     22 
     23 #define TC_TIC4X
     24 #define TIC4X
     25 
     26 #define TARGET_ARCH bfd_arch_tic4x
     27 
     28 #define WORKING_DOT_WORD
     29 
     30 /* There are a number of different formats used for local labels.  gas
     31    expects local labels either of the form `10$:' or `n:', where n is
     32    a single digit.  When LOCAL_LABEL_DOLLARS is defined labels of the
     33    form `10$:' are expected.  When LOCAL_LABEL_FB is defined labels of
     34    the form `n:' are expected.  The latter are expected to be referred
     35    to using `nf' for a forward reference of `nb' for a backward
     36    reference.
     37 
     38    The local labels expected by the TI tools are of the form `$n:',
     39    where the colon is optional.  Now the $ character is considered to
     40    be valid symbol name character, so gas doesn't recognise our local
     41    symbols by default.  Defining LEX_DOLLAR to be 1 means that gas
     42    won't allow labels starting with $ and thus the hook
     43    tc_unrecognized_line() will be called from read.c.  We can thus
     44    parse lines starting with $n as having local labels.
     45 
     46    The other problem is the forward reference of local labels.  If a
     47    symbol is undefined, symbol_make() calls the md_undefined_symbol()
     48    hook where we create a local label if recognised.  */
     49 
     50 /* Don't stick labels starting with 'L' into symbol table of COFF file. */
     51 #define LOCAL_LABEL(name) ((name)[0] == '$' || (name)[0] == 'L')
     52 
     53 #define TARGET_BYTES_BIG_ENDIAN	0
     54 #define OCTETS_PER_BYTE_POWER 	2
     55 
     56 #define TARGET_ARCH		bfd_arch_tic4x
     57 
     58 #define TIC_NOP_OPCODE		0x0c800000
     59 
     60 #define reloc_type 		int
     61 
     62 #define NO_RELOC 		0
     63 
     64 /* '||' denotes parallel instruction */
     65 #define DOUBLEBAR_PARALLEL      1
     66 
     67 /* Labels are not required to have a colon for a suffix.  */
     68 #define LABELS_WITHOUT_COLONS 	1
     69 
     70 /* Use $ as the section program counter (SPC). */
     71 #define DOLLAR_DOT
     72 
     73 /* Accept numbers with a suffix, e.g. 0ffffh, 1010b.  */
     74 #define NUMBERS_WITH_SUFFIX 	1
     75 
     76 extern int tic4x_unrecognized_line (int);
     77 #define tc_unrecognized_line(c) tic4x_unrecognized_line (c)
     78 
     79 #define md_number_to_chars number_to_chars_littleendian
     80 
     81 extern int tic4x_do_align (int, const char *, int, int);
     82 #define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label;
     83 
     84 /* Start of line hook to remove parallel instruction operator || */
     85 extern void tic4x_start_line (void);
     86 #define md_start_line_hook() tic4x_start_line()
     87 
     88 extern void tic4x_cleanup (void);
     89 #define md_cleanup() tic4x_cleanup()
     90 
     91 extern void tic4x_end (void);
     92 #define md_end() tic4x_end()
     93 
     94