PPC: booke206: Check for min/max TLB entry size
[qemu.git] / tci-dis.c
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
20 #include "dis-asm.h"
21 #include "tcg/tcg.h"
22
23 /* Disassemble TCI bytecode. */
24 int print_insn_tci(bfd_vma addr, disassemble_info *info)
25 {
26 int length;
27 uint8_t byte;
28 int status;
29 TCGOpcode op;
30
31 status = info->read_memory_func(addr, &byte, 1, info);
32 if (status != 0) {
33 info->memory_error_func(status, addr, info);
34 return -1;
35 }
36 op = byte;
37
38 addr++;
39 status = info->read_memory_func(addr, &byte, 1, info);
40 if (status != 0) {
41 info->memory_error_func(status, addr, info);
42 return -1;
43 }
44 length = byte;
45
46 if (op >= tcg_op_defs_max) {
47 info->fprintf_func(info->stream, "illegal opcode %d", op);
48 } else {
49 const TCGOpDef *def = &tcg_op_defs[op];
50 int nb_oargs = def->nb_oargs;
51 int nb_iargs = def->nb_iargs;
52 int nb_cargs = def->nb_cargs;
53 /* TODO: Improve disassembler output. */
54 info->fprintf_func(info->stream, "%s\to=%d i=%d c=%d",
55 def->name, nb_oargs, nb_iargs, nb_cargs);
56 }
57
58 return length;
59 }