Stefan Weil | 5826e51 | 2011-10-05 20:03:53 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Tiny Code Interpreter for QEMU - disassembler |
| 3 | * |
| 4 | * Copyright (c) 2011 Stefan Weil |
| 5 | * |
| 6 | * This program 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 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
Peter Maydell | 48d4ab2 | 2016-01-29 17:49:56 +0000 | [diff] [blame] | 20 | #include "qemu/osdep.h" |
Peter Maydell | 16c1321 | 2015-07-09 17:46:24 +0100 | [diff] [blame] | 21 | #include "qemu-common.h" |
Markus Armbruster | 3979fca | 2019-04-17 21:18:04 +0200 | [diff] [blame] | 22 | #include "disas/dis-asm.h" |
Stefan Weil | 5826e51 | 2011-10-05 20:03:53 +0200 | [diff] [blame] | 23 | #include "tcg/tcg.h" |
| 24 | |
| 25 | /* Disassemble TCI bytecode. */ |
| 26 | int print_insn_tci(bfd_vma addr, disassemble_info *info) |
| 27 | { |
| 28 | int length; |
| 29 | uint8_t byte; |
| 30 | int status; |
| 31 | TCGOpcode op; |
| 32 | |
| 33 | status = info->read_memory_func(addr, &byte, 1, info); |
| 34 | if (status != 0) { |
| 35 | info->memory_error_func(status, addr, info); |
| 36 | return -1; |
| 37 | } |
| 38 | op = byte; |
| 39 | |
| 40 | addr++; |
| 41 | status = info->read_memory_func(addr, &byte, 1, info); |
| 42 | if (status != 0) { |
| 43 | info->memory_error_func(status, addr, info); |
| 44 | return -1; |
| 45 | } |
| 46 | length = byte; |
| 47 | |
| 48 | if (op >= tcg_op_defs_max) { |
| 49 | info->fprintf_func(info->stream, "illegal opcode %d", op); |
| 50 | } else { |
| 51 | const TCGOpDef *def = &tcg_op_defs[op]; |
| 52 | int nb_oargs = def->nb_oargs; |
| 53 | int nb_iargs = def->nb_iargs; |
| 54 | int nb_cargs = def->nb_cargs; |
| 55 | /* TODO: Improve disassembler output. */ |
| 56 | info->fprintf_func(info->stream, "%s\to=%d i=%d c=%d", |
| 57 | def->name, nb_oargs, nb_iargs, nb_cargs); |
| 58 | } |
| 59 | |
| 60 | return length; |
| 61 | } |