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| 1 | 5826e519 | Stefan Weil | /*
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| 2 | 5826e519 | Stefan Weil | * Tiny Code Interpreter for QEMU - disassembler
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| 3 | 5826e519 | Stefan Weil | *
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| 4 | 5826e519 | Stefan Weil | * Copyright (c) 2011 Stefan Weil
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| 5 | 5826e519 | Stefan Weil | *
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| 6 | 5826e519 | Stefan Weil | * This program is free software: you can redistribute it and/or modify
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| 7 | 5826e519 | Stefan Weil | * it under the terms of the GNU General Public License as published by
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| 8 | 5826e519 | Stefan Weil | * the Free Software Foundation, either version 2 of the License, or
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| 9 | 5826e519 | Stefan Weil | * (at your option) any later version.
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| 10 | 5826e519 | Stefan Weil | *
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| 11 | 5826e519 | Stefan Weil | * This program is distributed in the hope that it will be useful,
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| 12 | 5826e519 | Stefan Weil | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | 5826e519 | Stefan Weil | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | 5826e519 | Stefan Weil | * GNU General Public License for more details.
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| 15 | 5826e519 | Stefan Weil | *
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| 16 | 5826e519 | Stefan Weil | * You should have received a copy of the GNU General Public License
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| 17 | 5826e519 | Stefan Weil | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 18 | 5826e519 | Stefan Weil | */
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| 19 | 5826e519 | Stefan Weil | |
| 20 | 5826e519 | Stefan Weil | #include "dis-asm.h" |
| 21 | 5826e519 | Stefan Weil | #include "tcg/tcg.h" |
| 22 | 5826e519 | Stefan Weil | |
| 23 | 5826e519 | Stefan Weil | /* Disassemble TCI bytecode. */
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| 24 | 5826e519 | Stefan Weil | int print_insn_tci(bfd_vma addr, disassemble_info *info)
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| 25 | 5826e519 | Stefan Weil | {
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| 26 | 5826e519 | Stefan Weil | int length;
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| 27 | 5826e519 | Stefan Weil | uint8_t byte; |
| 28 | 5826e519 | Stefan Weil | int status;
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| 29 | 5826e519 | Stefan Weil | TCGOpcode op; |
| 30 | 5826e519 | Stefan Weil | |
| 31 | 5826e519 | Stefan Weil | status = info->read_memory_func(addr, &byte, 1, info);
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| 32 | 5826e519 | Stefan Weil | if (status != 0) { |
| 33 | 5826e519 | Stefan Weil | info->memory_error_func(status, addr, info); |
| 34 | 5826e519 | Stefan Weil | return -1; |
| 35 | 5826e519 | Stefan Weil | } |
| 36 | 5826e519 | Stefan Weil | op = byte; |
| 37 | 5826e519 | Stefan Weil | |
| 38 | 5826e519 | Stefan Weil | addr++; |
| 39 | 5826e519 | Stefan Weil | status = info->read_memory_func(addr, &byte, 1, info);
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| 40 | 5826e519 | Stefan Weil | if (status != 0) { |
| 41 | 5826e519 | Stefan Weil | info->memory_error_func(status, addr, info); |
| 42 | 5826e519 | Stefan Weil | return -1; |
| 43 | 5826e519 | Stefan Weil | } |
| 44 | 5826e519 | Stefan Weil | length = byte; |
| 45 | 5826e519 | Stefan Weil | |
| 46 | 5826e519 | Stefan Weil | if (op >= tcg_op_defs_max) {
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| 47 | 5826e519 | Stefan Weil | info->fprintf_func(info->stream, "illegal opcode %d", op);
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| 48 | 5826e519 | Stefan Weil | } else {
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| 49 | 5826e519 | Stefan Weil | const TCGOpDef *def = &tcg_op_defs[op];
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| 50 | 5826e519 | Stefan Weil | int nb_oargs = def->nb_oargs;
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| 51 | 5826e519 | Stefan Weil | int nb_iargs = def->nb_iargs;
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| 52 | 5826e519 | Stefan Weil | int nb_cargs = def->nb_cargs;
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| 53 | 5826e519 | Stefan Weil | /* TODO: Improve disassembler output. */
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| 54 | 5826e519 | Stefan Weil | info->fprintf_func(info->stream, "%s\to=%d i=%d c=%d",
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| 55 | 5826e519 | Stefan Weil | def->name, nb_oargs, nb_iargs, nb_cargs); |
| 56 | 5826e519 | Stefan Weil | } |
| 57 | 5826e519 | Stefan Weil | |
| 58 | 5826e519 | Stefan Weil | return length;
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| 59 | 5826e519 | Stefan Weil | } |