gas/itbl-ops.h

   1 /* itbl-ops.h
   2    Copyright (C) 1997  Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21 /* External functions, constants and defines for itbl support */
  22
  23 #include "ansidecl.h"
  24 #include "targ-cpu.h"
  25 #ifdef HAVE_ITBL_CPU
  26 #include "itbl-cpu.h"
  27 #endif
  28
  29 /* Defaults for definitions required by generic code */
  30 #ifndef ITBL_NUMBER_OF_PROCESSORS
  31 #define ITBL_NUMBER_OF_PROCESSORS 1
  32 #endif
  33
  34 #ifndef ITBL_MAX_BITPOS
  35 #define ITBL_MAX_BITPOS 31
  36 #endif
  37
  38 #ifndef ITBL_TYPE
  39 #define ITBL_TYPE unsigned long
  40 #endif
  41
  42 #ifndef ITBL_IS_INSN
  43 #define ITBL_IS_INSN(insn) 1
  44 #endif
  45
  46 #ifndef ITBL_DECODE_PNUM
  47 #define ITBL_DECODE_PNUM(insn) 0
  48 #endif
  49
  50 #ifndef ITBL_ENCODE_PNUM
  51 #define ITBL_ENCODE_PNUM(pnum) 0
  52 #endif
  53
  54 typedef ITBL_TYPE t_insn;
  55
  56 /* types of entries */
  57 typedef enum
  58   {
  59     e_insn,
  60     e_dreg,
  61     e_regtype0 = e_dreg,
  62     e_creg,
  63     e_greg,
  64     e_addr,
  65     e_nregtypes = e_greg + 1,
  66     e_immed,
  67     e_ntypes,
  68     e_invtype                   /* invalid type */
  69   } e_type;
  70
  71 typedef enum
  72   {
  73     e_p0,
  74     e_nprocs = NUMBER_OF_PROCESSORS,
  75     e_invproc                   /* invalid processor */
  76   } e_processor;
  77
  78 /* 0 means an instruction table was not specified. */
  79 extern int itbl_have_entries;
  80
  81 /* These routines are visible to the main part of the assembler */
  82
  83 int itbl_parse PARAMS ((char *insntbl));
  84 void itbl_init PARAMS ((void));
  85 char *itbl_get_field PARAMS ((char **s));
  86 unsigned long itbl_assemble PARAMS ((char *name, char *operands));
  87 int itbl_disassemble PARAMS ((char *str, unsigned long insn));
  88 int itbl_parse PARAMS ((char *tbl));    /* parses insn tbl */
  89 unsigned long itbl_get_reg_val PARAMS ((char *name));
  90 unsigned long itbl_get_val PARAMS ((e_processor processor, e_type type,
  91                                     char *name));
  92 char *itbl_get_name PARAMS ((e_processor processor, e_type type,
  93                              unsigned long val));
  94
  95 /* These routines are called by the table parser used to build the
  96    dynamic list of new processor instructions and registers. */
  97
  98 struct itbl_entry *itbl_add_reg PARAMS ((int yyproc, int yytype,
  99                                          char *regname, int regnum));
 100 struct itbl_entry *itbl_add_insn PARAMS ((int yyproc, char *name,
 101              unsigned long value, int sbit, int ebit, unsigned long flags));
 102 struct itbl_field *itbl_add_operand PARAMS ((struct itbl_entry * e, int yytype,
 103                                   int sbit, int ebit, unsigned long flags));