| 1 | /* Definitions for decoding the picoJava opcode table. |
| 2 | Copyright 1999, 2002, 2003 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 2 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, MA 02110-1301, USA. */ |
| 18 | |
| 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; |