1  /* itbl-ops.h
       2     Copyright (C) 1997-2023 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);