| 1 | /* tc-tic4x.h -- Assemble for the Texas TMS320C[34]X. |
| 2 | Copyright (C) 1997, 2002, 2003, 2005 Free Software Foundation. |
| 3 | |
| 4 | Contributed by Michael P. Hayes (m.hayes@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 2, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #define TC_TIC4X |
| 23 | #define TIC4X |
| 24 | |
| 25 | #ifndef BFD_ASSEMBLER |
| 26 | #error TMS320C4x requires BFD_ASSEMBLER |
| 27 | #endif |
| 28 | |
| 29 | #define TARGET_ARCH bfd_arch_tic4x |
| 30 | |
| 31 | #define WORKING_DOT_WORD |
| 32 | |
| 33 | /* There are a number of different formats used for local labels. gas |
| 34 | expects local labels either of the form `10$:' or `n:', where n is |
| 35 | a single digit. When LOCAL_LABEL_DOLLARS is defined labels of the |
| 36 | form `10$:' are expected. When LOCAL_LABEL_FB is defined labels of |
| 37 | the form `n:' are expected. The latter are expected to be referred |
| 38 | to using `nf' for a forward reference of `nb' for a backward |
| 39 | reference. |
| 40 | |
| 41 | The local labels expected by the TI tools are of the form `$n:', |
| 42 | where the colon is optional. Now the $ character is considered to |
| 43 | be valid symbol name character, so gas doesn't recognise our local |
| 44 | symbols by default. Defining LEX_DOLLAR to be 1 means that gas |
| 45 | won't allow labels starting with $ and thus the hook |
| 46 | tc_unrecognized_line() will be called from read.c. We can thus |
| 47 | parse lines starting with $n as having local labels. |
| 48 | |
| 49 | The other problem is the forward reference of local labels. If a |
| 50 | symbol is undefined, symbol_make() calls the md_undefined_symbol() |
| 51 | hook where we create a local label if recognised. */ |
| 52 | |
| 53 | /* Don't stick labels starting with 'L' into symbol table of COFF file. */ |
| 54 | #define LOCAL_LABEL(name) ((name)[0] == '$' || (name)[0] == 'L') |
| 55 | |
| 56 | #define TARGET_BYTES_BIG_ENDIAN 0 |
| 57 | #define OCTETS_PER_BYTE_POWER 2 |
| 58 | |
| 59 | #define TARGET_ARCH bfd_arch_tic4x |
| 60 | #define BFD_ARCH TARGET_ARCH |
| 61 | |
| 62 | #define TC_COUNT_RELOC(x) (x->fx_addsy) |
| 63 | #define TC_CONS_RELOC RELOC_32 |
| 64 | #define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP) |
| 65 | #define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep (frag) |
| 66 | #define NEED_FX_R_TYPE |
| 67 | |
| 68 | #define TIC_NOP_OPCODE 0x0c800000 |
| 69 | |
| 70 | #define reloc_type int |
| 71 | |
| 72 | #define NO_RELOC 0 |
| 73 | |
| 74 | /* '||' denotes parallel instruction */ |
| 75 | #define DOUBLEBAR_PARALLEL 1 |
| 76 | |
| 77 | /* Labels are not required to have a colon for a suffix. */ |
| 78 | #define LABELS_WITHOUT_COLONS 1 |
| 79 | |
| 80 | /* Use $ as the section program counter (SPC). */ |
| 81 | #define DOLLAR_DOT |
| 82 | |
| 83 | /* Accept numbers with a suffix, e.g. 0ffffh, 1010b. */ |
| 84 | #define NUMBERS_WITH_SUFFIX 1 |
| 85 | |
| 86 | extern int tic4x_unrecognized_line PARAMS ((int)); |
| 87 | #define tc_unrecognized_line(c) tic4x_unrecognized_line (c) |
| 88 | |
| 89 | #define md_number_to_chars number_to_chars_littleendian |
| 90 | |
| 91 | extern int tic4x_do_align PARAMS ((int, const char *, int, int)); |
| 92 | #define md_do_align(n,fill,len,max,label) if( tic4x_do_align (n,fill,len,max) ) goto label; |
| 93 | |
| 94 | /* Start of line hook to remove parallel instruction operator || */ |
| 95 | extern void tic4x_start_line PARAMS ((void)); |
| 96 | #define md_start_line_hook() tic4x_start_line() |
| 97 | |
| 98 | extern void tic4x_cleanup PARAMS ((void)); |
| 99 | #define md_cleanup() tic4x_cleanup() |
| 100 | |
| 101 | extern void tic4x_end PARAMS ((void)); |
| 102 | #define md_end() tic4x_end() |
| 103 | |