gas/itbl-ops.h

   1
   2 /* itbl-ops.h
   3
   4    Copyright (C) 1997  Free Software Foundation, Inc.
   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 the Free
  20    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21    02111-1307, USA.  */
  22
  23 /* External functions, constants and defines for itbl support */
  24
  25 #include "ansidecl.h"
  26 #include "itbl-cpu.h"
  27
  28 /* Defaults for definitions required by generic code */
  29 #ifndef ITBL_NUMBER_OF_PROCESSORS
  30 #define ITBL_NUMBER_OF_PROCESSORS 1
  31 #endif
  32
  33 #ifndef ITBL_MAX_BITPOS
  34 #define ITBL_MAX_BITPOS 31
  35 #endif
  36
  37 #ifndef ITBL_TYPE
  38 #define ITBL_TYPE unsigned long
  39 #endif
  40
  41 #ifndef ITBL_IS_INSN
  42 #define ITBL_IS_INSN(insn) 1
  43 #endif
  44
  45 #ifndef ITBL_DECODE_PNUM
  46 #define ITBL_DECODE_PNUM(insn) 0
  47 #endif
  48
  49 #ifndef ITBL_ENCODE_PNUM
  50 #define ITBL_ENCODE_PNUM(pnum) 0
  51 #endif
  52
  53 typedef ITBL_TYPE t_insn;
  54
  55 /* types of entries */
  56 typedef enum
  57   {
  58     e_insn,
  59     e_dreg,
  60     e_regtype0 = e_dreg,
  61     e_creg,
  62     e_greg,
  63     e_addr,
  64     e_nregtypes = e_greg + 1,
  65     e_immed,
  66     e_ntypes,
  67     e_invtype                   /* invalid type */
  68   } e_type;
  69
  70 typedef enum
  71   {
  72     e_p0,
  73     e_nprocs = NUMBER_OF_PROCESSORS,
  74     e_invproc                   /* invalid processor */
  75   } e_processor;
  76
  77 /* 0 means an instruction table was not specified. */
  78 extern int itbl_have_entries;
  79
  80 /* These routines are visible to the main part of the assembler */
  81
  82 int itbl_parse PARAMS ((char *insntbl));
  83 void itbl_init PARAMS ((void));
  84 char *itbl_get_field PARAMS ((char **s));
  85 unsigned long itbl_assemble PARAMS ((char *name, char *operands));
  86 int itbl_disassemble PARAMS ((char *str, unsigned long insn));
  87 int itbl_parse PARAMS ((char *tbl));    /* parses insn tbl */
  88 unsigned long itbl_get_reg_val PARAMS ((char *name));
  89 unsigned long itbl_get_val PARAMS ((e_processor processor, e_type type,
  90                                     char *name));
  91 char *itbl_get_name PARAMS ((e_processor processor, e_type type,
  92                              unsigned long val));
  93
  94 /* These routines are called by the table parser used to build the
  95    dynamic list of new processor instructions and registers. */
  96
  97 struct itbl_entry *itbl_add_reg PARAMS ((int yyproc, int yytype,
  98                                          char *regname, int regnum));
  99 struct itbl_entry *itbl_add_insn PARAMS ((int yyproc, char *name,
 100              unsigned long value, int sbit, int ebit, unsigned long flags));
 101 struct itbl_field *itbl_add_operand PARAMS ((struct itbl_entry * e, int yytype,
 102                                   int sbit, int ebit, unsigned long flags));