gas/config/tc-tic6x.h

   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   /* The functional units used in the current execute packet, recorded
  71      by setting the same bits as would be set in the 32-bit SPMASK
  72      instruction.  */
  73   unsigned int func_units_used;
  74
  75   /* If an SPLOOP-family instruction has been seen, and a following
  76      SPKERNEL-family instruction has not yet been seen, the ii value
  77      from the SPLOOP instruction (in the range 1 to 14); otherwise
  78      0.  */
  79   int sploop_ii;
  80 } tic6x_segment_info_type;
  81 #define TC_SEGMENT_INFO_TYPE tic6x_segment_info_type
  82
  83 typedef struct
  84 {
  85   /* Whether this machine-dependent frag is used for instructions (as
  86      opposed to code alignment).  */
  87   bfd_boolean is_insns;
  88
  89   /* For a frag used for instructions, whether it is may cross a fetch
  90      packet boundary (subject to alignment requirements).  */
  91   bfd_boolean can_cross_fp_boundary;
  92 } tic6x_frag_info;
  93 #define TC_FRAG_TYPE tic6x_frag_info
  94 #define TC_FRAG_INIT(fragP) tic6x_frag_init (fragP)
  95 extern void tic6x_frag_init (fragS *fragp);
  96
  97 typedef struct
  98 {
  99   /* Whether this fix was for an ADDA instruction.  If so, a constant
 100      resulting from resolving the fix should be implicitly shifted
 101      left (it represents a value to be encoded literally in the
 102      instruction, whereas a non-constant represents a DP-relative
 103      value counting in the appropriate units).  */
 104   bfd_boolean fix_adda;
 105 } tic6x_fix_info;
 106 #define TC_FIX_TYPE tic6x_fix_info
 107 #define TC_INIT_FIX_DATA(fixP) tic6x_init_fix_data (fixP)
 108 struct fix;
 109 extern void tic6x_init_fix_data (struct fix *fixP);
 110
 111 #define md_after_parse_args() tic6x_after_parse_args ()
 112 extern void tic6x_after_parse_args (void);
 113
 114 #define md_cleanup() tic6x_cleanup ()
 115 extern void tic6x_cleanup (void);
 116
 117 #define md_cons_align(n) tic6x_cons_align (n)
 118 extern void tic6x_cons_align (int n);
 119
 120 #define md_do_align(n, fill, len, max, label)   \
 121   do {                                          \
 122     if (tic6x_do_align (n, fill, len, max))     \
 123       goto label;                               \
 124   } while (0)
 125 extern bfd_boolean tic6x_do_align (int n, char *fill, int len, int max);
 126
 127 #define CONVERT_SYMBOLIC_ATTRIBUTE(name)        \
 128   tic6x_convert_symbolic_attribute (name)
 129 extern int tic6x_convert_symbolic_attribute (const char *);
 130
 131 #define md_end() tic6x_end ();
 132 extern void tic6x_end (void);
 133
 134 #define md_parse_name(name, exprP, mode, nextcharP)     \
 135   tic6x_parse_name (name, exprP, mode, nextcharP)
 136 extern int tic6x_parse_name (const char *name, expressionS *exprP,
 137                              enum expr_mode mode, char *nextchar);
 138
 139 #define MD_PCREL_FROM_SECTION(FIX, SEC) tic6x_pcrel_from_section (FIX, SEC)
 140 extern long tic6x_pcrel_from_section (struct fix *fixp, segT sec);
 141
 142 #define md_start_line_hook() tic6x_start_line_hook ()
 143 extern void tic6x_start_line_hook (void);
 144
 145 #define TC_CONS_FIX_NEW(frag, where, size, exp) \
 146   tic6x_cons_fix_new (frag, where, size, exp)
 147 extern void tic6x_cons_fix_new (fragS *frag, int where, int size,
 148                                 expressionS *exp);
 149
 150 #define tc_frob_label(sym) tic6x_frob_label (sym)
 151 extern void tic6x_frob_label (symbolS *sym);
 152
 153 #define tc_init_after_args() tic6x_init_after_args ()
 154 extern void tic6x_init_after_args (void);
 155
 156 #define tc_unrecognized_line(c) tic6x_unrecognized_line (c)
 157 extern int tic6x_unrecognized_line (int c);