include/opcode/pj.h

   1 /* Definitions for decoding the picoJava opcode table.
   2    Copyright (C) 1999-2024 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;