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