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 95