gas/itbl-ops.h

   1 /* itbl-ops.h
   2    Copyright (C) 1997-2024 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 /* External functions, constants and defines for itbl support */
  22
  23 #ifdef HAVE_ITBL_CPU
  24 #include "itbl-cpu.h"
  25 #endif
  26
  27 /* Defaults for definitions required by generic code */
  28 #ifndef ITBL_NUMBER_OF_PROCESSORS
  29 #define ITBL_NUMBER_OF_PROCESSORS 1
  30 #endif
  31
  32 #ifndef ITBL_MAX_BITPOS
  33 #define ITBL_MAX_BITPOS 31
  34 #endif
  35
  36 #ifndef ITBL_TYPE
  37 #define ITBL_TYPE unsigned long
  38 #endif
  39
  40 #ifndef ITBL_IS_INSN
  41 #define ITBL_IS_INSN(insn) 1
  42 #endif
  43
  44 #ifndef ITBL_DECODE_PNUM
  45 #define ITBL_DECODE_PNUM(insn) 0
  46 #endif
  47
  48 #ifndef ITBL_ENCODE_PNUM
  49 #define ITBL_ENCODE_PNUM(pnum) 0
  50 #endif
  51
  52 typedef ITBL_TYPE t_insn;
  53
  54 /* types of entries */
  55 typedef enum
  56   {
  57     e_insn,
  58     e_dreg,
  59     e_regtype0 = e_dreg,
  60     e_creg,
  61     e_greg,
  62     e_addr,
  63     e_nregtypes = e_greg + 1,
  64     e_immed,
  65     e_ntypes,
  66     e_invtype                   /* invalid type */
  67   } e_type;
  68
  69 typedef enum
  70   {
  71     e_p0,
  72     e_nprocs = ITBL_NUMBER_OF_PROCESSORS,
  73     e_invproc                   /* invalid processor */
  74   } e_processor;
  75
  76 /* 0 means an instruction table was not specified.  */
  77 extern int itbl_have_entries;
  78
  79 /* These routines are visible to the main part of the assembler */
  80
  81 int itbl_parse (char *insntbl);
  82 void itbl_init (void);
  83 char *itbl_get_field (char **s);
  84 unsigned long itbl_assemble (char *name, char *operands);
  85 int itbl_disassemble (char *str, unsigned long insn);
  86 int itbl_parse (char *tbl);     /* parses insn tbl */
  87 int itbl_get_reg_val (char *name, unsigned long *pval);
  88 int itbl_get_val (e_processor processor, e_type type, char *name,
  89                   unsigned long *pval);
  90 char *itbl_get_name (e_processor processor, e_type type, unsigned long val);
  91
  92 /* These routines are called by the table parser used to build the
  93    dynamic list of new processor instructions and registers.  */
  94
  95 struct itbl_entry *itbl_add_reg (int yyproc, int yytype,
  96                                  char *regname, int regnum);
  97 struct itbl_entry *itbl_add_insn (int yyproc, char *name,
  98              unsigned long value, int sbit, int ebit, unsigned long flags);
  99 struct itbl_field *itbl_add_operand (struct itbl_entry * e, int yytype,
 100                                   int sbit, int ebit, unsigned long flags);