| 1 | /* Definitions for TI C6X assembler. |
| 2 | Copyright 2010 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GAS, the GNU Assembler. |
| 6 | |
| 7 | GAS is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GAS is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GAS; see the file COPYING. If not, write to the Free |
| 19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 20 | 02110-1301, USA. */ |
| 21 | |
| 22 | #define TC_TIC6X 1 |
| 23 | #define TARGET_BYTES_BIG_ENDIAN 0 |
| 24 | #define WORKING_DOT_WORD |
| 25 | #define DOUBLEBAR_PARALLEL |
| 26 | #define DWARF2_LINE_MIN_INSN_LENGTH 2 |
| 27 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
| 28 | #define TC_PREDICATE_START_CHAR '[' |
| 29 | #define TC_PREDICATE_END_CHAR ']' |
| 30 | /* For TI C6X, we keep spaces in what the preprocessor considers |
| 31 | operands as they may separate functional unit specifiers from |
| 32 | operands. */ |
| 33 | #define TC_KEEP_OPERAND_SPACES 1 |
| 34 | |
| 35 | #define TARGET_ARCH bfd_arch_tic6x |
| 36 | #define TARGET_FORMAT (target_big_endian \ |
| 37 | ? "elf32-tic6x-be" \ |
| 38 | : "elf32-tic6x-le") |
| 39 | |
| 40 | typedef struct tic6x_label_list |
| 41 | { |
| 42 | struct tic6x_label_list *next; |
| 43 | symbolS *label; |
| 44 | } tic6x_label_list; |
| 45 | |
| 46 | typedef struct |
| 47 | { |
| 48 | /* Any labels seen since the last instruction or data. If not NULL, |
| 49 | a following instruction may not have parallel bars, but must |
| 50 | start a new execute packet. */ |
| 51 | tic6x_label_list *label_list; |
| 52 | |
| 53 | /* Whether compact instructions are forbidden here. */ |
| 54 | bfd_boolean nocmp; |
| 55 | |
| 56 | /* If there is a current execute packet, the frag being used for |
| 57 | that execute packet. */ |
| 58 | fragS *execute_packet_frag; |
| 59 | |
| 60 | /* If there is a current execute packet, a pointer to the |
| 61 | least-significant byte of the last instruction in it (for setting |
| 62 | the p-bit). */ |
| 63 | char *last_insn_lsb; |
| 64 | |
| 65 | /* If there has been an SPMASK instruction in the current execute |
| 66 | packet, a pointer to the first byte in it (for processing |
| 67 | ||^); otherwise NULL. */ |
| 68 | char *spmask_addr; |
| 69 | |
| 70 | /* If an SPLOOP-family instruction has been seen, and a following |
| 71 | SPKERNEL-family instruction has not yet been seen, the ii value |
| 72 | from the SPLOOP instruction (in the range 1 to 14); otherwise |
| 73 | 0. */ |
| 74 | int sploop_ii; |
| 75 | } tic6x_segment_info_type; |
| 76 | #define TC_SEGMENT_INFO_TYPE tic6x_segment_info_type |
| 77 | |
| 78 | typedef struct |
| 79 | { |
| 80 | /* Whether this machine-dependent frag is used for instructions (as |
| 81 | opposed to code alignment). */ |
| 82 | bfd_boolean is_insns; |
| 83 | |
| 84 | /* For a frag used for instructions, whether it is may cross a fetch |
| 85 | packet boundary (subject to alignment requirements). */ |
| 86 | bfd_boolean can_cross_fp_boundary; |
| 87 | } tic6x_frag_info; |
| 88 | #define TC_FRAG_TYPE tic6x_frag_info |
| 89 | #define TC_FRAG_INIT(fragP) tic6x_frag_init (fragP) |
| 90 | extern void tic6x_frag_init (fragS *fragp); |
| 91 | |
| 92 | typedef struct |
| 93 | { |
| 94 | /* Whether this fix was for an ADDA instruction. If so, a constant |
| 95 | resulting from resolving the fix should be implicitly shifted |
| 96 | left (it represents a value to be encoded literally in the |
| 97 | instruction, whereas a non-constant represents a DP-relative |
| 98 | value counting in the appropriate units). */ |
| 99 | bfd_boolean fix_adda; |
| 100 | } tic6x_fix_info; |
| 101 | #define TC_FIX_TYPE tic6x_fix_info |
| 102 | #define TC_INIT_FIX_DATA(fixP) tic6x_init_fix_data (fixP) |
| 103 | struct fix; |
| 104 | extern void tic6x_init_fix_data (struct fix *fixP); |
| 105 | |
| 106 | #define md_after_parse_args() tic6x_after_parse_args () |
| 107 | extern void tic6x_after_parse_args (void); |
| 108 | |
| 109 | #define md_cleanup() tic6x_cleanup () |
| 110 | extern void tic6x_cleanup (void); |
| 111 | |
| 112 | #define md_cons_align(n) tic6x_cons_align (n) |
| 113 | extern void tic6x_cons_align (int n); |
| 114 | |
| 115 | #define md_do_align(n, fill, len, max, label) \ |
| 116 | do { \ |
| 117 | if (tic6x_do_align (n, fill, len, max)) \ |
| 118 | goto label; \ |
| 119 | } while (0) |
| 120 | extern bfd_boolean tic6x_do_align (int n, char *fill, int len, int max); |
| 121 | |
| 122 | #define md_end() tic6x_end (); |
| 123 | extern void tic6x_end (void); |
| 124 | |
| 125 | #define md_parse_name(name, exprP, mode, nextcharP) \ |
| 126 | tic6x_parse_name (name, exprP, mode, nextcharP) |
| 127 | extern int tic6x_parse_name (const char *name, expressionS *exprP, |
| 128 | enum expr_mode mode, char *nextchar); |
| 129 | |
| 130 | #define MD_PCREL_FROM_SECTION(FIX, SEC) tic6x_pcrel_from_section (FIX, SEC) |
| 131 | extern long tic6x_pcrel_from_section (struct fix *fixp, segT sec); |
| 132 | |
| 133 | #define md_start_line_hook() tic6x_start_line_hook () |
| 134 | extern void tic6x_start_line_hook (void); |
| 135 | |
| 136 | #define TC_CONS_FIX_NEW(frag, where, size, exp) \ |
| 137 | tic6x_cons_fix_new (frag, where, size, exp) |
| 138 | extern void tic6x_cons_fix_new (fragS *frag, int where, int size, |
| 139 | expressionS *exp); |
| 140 | |
| 141 | #define tc_frob_label(sym) tic6x_frob_label (sym) |
| 142 | extern void tic6x_frob_label (symbolS *sym); |
| 143 | |
| 144 | #define tc_init_after_args() tic6x_init_after_args () |
| 145 | extern void tic6x_init_after_args (void); |
| 146 | |
| 147 | #define tc_unrecognized_line(c) tic6x_unrecognized_line (c) |
| 148 | extern int tic6x_unrecognized_line (int c); |