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
