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60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*
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* Tiny Code Interpreter for QEMU - disassembler
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*
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* Copyright (c) 2011 Stefan Weil
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "disas/bfd.h"
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#include "tcg/tcg.h"
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/* Disassemble TCI bytecode. */
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int print_insn_tci(bfd_vma addr, disassemble_info *info)
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{
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int length;
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uint8_t byte;
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int status;
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TCGOpcode op;
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status = info->read_memory_func(addr, &byte, 1, info);
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if (status != 0) {
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info->memory_error_func(status, addr, info);
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return -1;
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}
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op = byte;
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addr++;
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status = info->read_memory_func(addr, &byte, 1, info);
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if (status != 0) {
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info->memory_error_func(status, addr, info);
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return -1;
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}
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length = byte;
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if (op >= tcg_op_defs_max) {
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info->fprintf_func(info->stream, "illegal opcode %d", op);
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} else {
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const TCGOpDef *def = &tcg_op_defs[op];
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int nb_oargs = def->nb_oargs;
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int nb_iargs = def->nb_iargs;
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int nb_cargs = def->nb_cargs;
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/* TODO: Improve disassembler output. */
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info->fprintf_func(info->stream, "%s\to=%d i=%d c=%d",
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def->name, nb_oargs, nb_iargs, nb_cargs);
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}
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return length;
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}
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