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  1. /* Definitions for decoding the picoJava opcode table.
  2.    Copyright (C) 1999-2015 Free Software Foundation, Inc.
  3.    Contributed by Steve Chamberlain of Transmeta (sac@pobox.com).
  4.  
  5.    This program is free software; you can redistribute it and/or modify
  6.    it under the terms of the GNU General Public License as published by
  7.    the Free Software Foundation; either version 3 of the License, or
  8.    (at your option) any later version.
  9.  
  10.    This program is distributed in the hope that it will be useful,
  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13.    GNU General Public License for more details.
  14.  
  15.    You should have received a copy of the GNU General Public License
  16.    along with this program; if not, write to the Free Software
  17.    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18.    MA 02110-1301, USA.  */
  19.  
  20. /* Names used to describe the type of instruction arguments, used by
  21.    the assembler and disassembler.  Attributes are encoded in various fields. */
  22.  
  23. /*            reloc  size pcrel    uns */
  24. #define O_N    0
  25. #define O_16  (1<<4 | 2 | (0<<6) | (0<<3))
  26. #define O_U16 (1<<4 | 2 | (0<<6) | (1<<3))
  27. #define O_R16 (2<<4 | 2 | (1<<6) | (0<<3))
  28. #define O_8   (3<<4 | 1 | (0<<6) | (0<<3))
  29. #define O_U8  (3<<4 | 1 | (0<<6) | (1<<3))
  30. #define O_R8  (4<<4 | 1 | (0<<6) | (0<<3))
  31. #define O_R32 (5<<4 | 4 | (1<<6) | (0<<3))
  32. #define O_32  (6<<4 | 4 | (0<<6) | (0<<3))
  33.  
  34. #define ASIZE(x)  ((x) & 0x7)
  35. #define PCREL(x)  (!!((x) & (1<<6)))
  36. #define UNS(x)    (!!((x) & (1<<3)))
  37.  
  38.                  
  39. typedef struct pj_opc_info_t
  40. {
  41.   short opcode;
  42.   short opcode_next;
  43.   char len;
  44.   unsigned char arg[2];
  45.   union {
  46.     const char *name;
  47.     void (*func) (struct pj_opc_info_t *, char *);
  48.   } u;
  49. } pj_opc_info_t;
  50.