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540 lines
16 KiB
540 lines
16 KiB
/*
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* Copyright (C) 2000, 2001 Martin Norbäck, Håkan Hjort
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* 2002-2004 the dvdnav project
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*
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* This file is part of libdvdnav, a DVD navigation library. It is modified
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* from a file originally part of the Ogle DVD player.
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*
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* libdvdnav 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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* libdvdnav 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* $Id: vmcmd.c,v 1.6 2004/03/16 11:43:38 mroi Exp $
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include "dvdnav_internal.h"
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/* freebsd compatibility */
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#ifndef PRIu8
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#define PRIu8 "d"
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#endif
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/* freebsd compatibility */
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#ifndef PRIu16
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#define PRIu16 "d"
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#endif
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static const char *cmp_op_table[] = {
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NULL, "&", "==", "!=", ">=", ">", "<=", "<"
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};
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static const char *set_op_table[] = {
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NULL, "=", "<->", "+=", "-=", "*=", "/=", "%=", "rnd", "&=", "|=", "^="
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};
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static const char *link_table[] = {
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"LinkNoLink", "LinkTopC", "LinkNextC", "LinkPrevC",
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NULL, "LinkTopPG", "LinkNextPG", "LinkPrevPG",
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NULL, "LinkTopPGC", "LinkNextPGC", "LinkPrevPGC",
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"LinkGoUpPGC", "LinkTailPGC", NULL, NULL,
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"RSM"
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};
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static const char *system_reg_table[] = {
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"Menu Description Language Code",
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"Audio Stream Number",
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"Sub-picture Stream Number",
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"Angle Number",
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"Title Track Number",
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"VTS Title Track Number",
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"VTS PGC Number",
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"PTT Number for One_Sequential_PGC_Title",
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"Highlighted Button Number",
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"Navigation Timer",
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"Title PGC Number for Navigation Timer",
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"Audio Mixing Mode for Karaoke",
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"Country Code for Parental Management",
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"Parental Level",
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"Player Configurations for Video",
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"Player Configurations for Audio",
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"Initial Language Code for Audio",
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"Initial Language Code Extension for Audio",
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"Initial Language Code for Sub-picture",
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"Initial Language Code Extension for Sub-picture",
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"Player Regional Code",
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"Reserved 21",
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"Reserved 22",
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"Reserved 23"
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};
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static const char *system_reg_abbr_table[] = {
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NULL,
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"ASTN",
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"SPSTN",
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"AGLN",
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"TTN",
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"VTS_TTN",
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"TT_PGCN",
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"PTTN",
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"HL_BTNN",
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"NVTMR",
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"NV_PGCN",
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NULL,
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"CC_PLT",
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"PLT",
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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};
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static void print_system_reg(uint16_t reg) {
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if(reg < sizeof(system_reg_abbr_table) / sizeof(char *))
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fprintf(MSG_OUT, "%s (SRPM:%d)", system_reg_table[reg], reg);
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else
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fprintf(MSG_OUT, " WARNING: Unknown system register ( reg=%d ) ", reg);
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}
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static void print_g_reg(uint8_t reg) {
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if(reg < 16)
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fprintf(MSG_OUT, "g[%" PRIu8 "]", reg);
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else
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fprintf(MSG_OUT, " WARNING: Unknown general register ");
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}
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static void print_reg(uint8_t reg) {
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if(reg & 0x80)
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print_system_reg(reg & 0x7f);
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else
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print_g_reg(reg & 0x7f);
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}
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static void print_cmp_op(uint8_t op) {
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if(op < sizeof(cmp_op_table) / sizeof(char *) && cmp_op_table[op] != NULL)
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fprintf(MSG_OUT, " %s ", cmp_op_table[op]);
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else
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fprintf(MSG_OUT, " WARNING: Unknown compare op ");
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}
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static void print_set_op(uint8_t op) {
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if(op < sizeof(set_op_table) / sizeof(char *) && set_op_table[op] != NULL)
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fprintf(MSG_OUT, " %s ", set_op_table[op]);
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else
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fprintf(MSG_OUT, " WARNING: Unknown set op ");
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}
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static void print_reg_or_data(command_t* command, int immediate, int start) {
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if(immediate) {
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uint32_t i = vm_getbits(command, start, 16);
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fprintf(MSG_OUT, "0x%x", i);
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if(isprint(i & 0xff) && isprint((i>>8) & 0xff))
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fprintf(MSG_OUT, " (\"%c%c\")", (char)((i>>8) & 0xff), (char)(i & 0xff));
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} else {
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print_reg(vm_getbits(command, start - 8, 8));
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}
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}
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static void print_reg_or_data_2(command_t* command, int immediate, int start) {
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if(immediate)
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fprintf(MSG_OUT, "0x%x", vm_getbits(command, start - 1, 7));
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else
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fprintf(MSG_OUT, "g[%" PRIu8 "]", vm_getbits(command, start - 4, 4));
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}
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static void print_reg_or_data_3(command_t* command, int immediate, int start) {
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if(immediate) {
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uint32_t i = vm_getbits(command, start, 16);
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fprintf(MSG_OUT, "0x%x", i);
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if(isprint(i & 0xff) && isprint((i>>8) & 0xff))
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fprintf(MSG_OUT, " (\"%c%c\")", (char)((i>>8) & 0xff), (char)(i & 0xff));
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} else {
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print_reg(vm_getbits(command, start, 8));
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}
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}
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static void print_if_version_1(command_t* command) {
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uint8_t op = vm_getbits(command, 54, 3);
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if(op) {
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fprintf(MSG_OUT, "if (");
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print_g_reg(vm_getbits(command,39,8));
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print_cmp_op(op);
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print_reg_or_data(command, vm_getbits(command, 55,1), 31);
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fprintf(MSG_OUT, ") ");
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}
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}
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static void print_if_version_2(command_t* command) {
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uint8_t op = vm_getbits(command, 54, 3);
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if(op) {
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fprintf(MSG_OUT, "if (");
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print_reg(vm_getbits(command, 15, 8));
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print_cmp_op(op);
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print_reg(vm_getbits(command, 7, 8));
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fprintf(MSG_OUT, ") ");
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}
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}
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static void print_if_version_3(command_t* command) {
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uint8_t op = vm_getbits(command, 54, 3);
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if(op) {
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fprintf(MSG_OUT, "if (");
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print_g_reg(vm_getbits(command, 43, 4));
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print_cmp_op(op);
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print_reg_or_data(command, vm_getbits(command, 55, 1), 15);
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fprintf(MSG_OUT, ") ");
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}
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}
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static void print_if_version_4(command_t* command) {
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uint8_t op = vm_getbits(command, 54, 3);
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if(op) {
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fprintf(MSG_OUT, "if (");
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print_g_reg(vm_getbits(command, 51, 4));
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print_cmp_op(op);
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print_reg_or_data(command, vm_getbits(command, 55, 1), 31);
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fprintf(MSG_OUT, ") ");
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}
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}
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static void print_if_version_5(command_t* command) {
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uint8_t op = vm_getbits(command, 54, 3);
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int set_immediate = vm_getbits(command, 60, 1);
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if(op) {
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if (set_immediate) {
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fprintf(MSG_OUT, "if (");
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print_g_reg(vm_getbits(command, 31, 8));
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print_cmp_op(op);
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print_reg(vm_getbits(command, 23, 8));
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fprintf(MSG_OUT, ") ");
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} else {
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fprintf(MSG_OUT, "if (");
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print_g_reg(vm_getbits(command, 39, 8));
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print_cmp_op(op);
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print_reg_or_data(command, vm_getbits(command, 55, 1), 31);
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fprintf(MSG_OUT, ") ");
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}
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}
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}
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static void print_special_instruction(command_t* command) {
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uint8_t op = vm_getbits(command, 51, 4);
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switch(op) {
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case 0: /* NOP */
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fprintf(MSG_OUT, "Nop");
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break;
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case 1: /* Goto line */
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fprintf(MSG_OUT, "Goto %" PRIu8, vm_getbits(command, 7, 8));
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break;
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case 2: /* Break */
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fprintf(MSG_OUT, "Break");
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break;
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case 3: /* Parental level */
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fprintf(MSG_OUT, "SetTmpPML %" PRIu8 ", Goto %" PRIu8,
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vm_getbits(command, 11, 4), vm_getbits(command, 7, 8));
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break;
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default:
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fprintf(MSG_OUT, "WARNING: Unknown special instruction (%i)",
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vm_getbits(command, 51, 4));
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}
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}
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static void print_linksub_instruction(command_t* command) {
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uint32_t linkop = vm_getbits(command, 7, 8);
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uint32_t button = vm_getbits(command, 15, 6);
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if(linkop < sizeof(link_table)/sizeof(char *) && link_table[linkop] != NULL)
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fprintf(MSG_OUT, "%s (button %" PRIu8 ")", link_table[linkop], button);
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else
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fprintf(MSG_OUT, "WARNING: Unknown linksub instruction (%i)", linkop);
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}
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static void print_link_instruction(command_t* command, int optional) {
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uint8_t op = vm_getbits(command, 51, 4);
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if(optional && op)
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fprintf(MSG_OUT, ", ");
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switch(op) {
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case 0:
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if(!optional)
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fprintf(MSG_OUT, "WARNING: NOP (link)!");
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break;
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case 1:
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print_linksub_instruction(command);
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break;
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case 4:
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fprintf(MSG_OUT, "LinkPGCN %" PRIu16, vm_getbits(command, 14, 15));
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break;
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case 5:
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fprintf(MSG_OUT, "LinkPTT %" PRIu16 " (button %" PRIu8 ")",
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vm_getbits(command, 9, 10), vm_getbits(command, 15, 6));
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break;
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case 6:
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fprintf(MSG_OUT, "LinkPGN %" PRIu8 " (button %" PRIu8 ")",
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vm_getbits(command, 6, 7), vm_getbits(command, 15, 6));
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break;
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case 7:
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fprintf(MSG_OUT, "LinkCN %" PRIu8 " (button %" PRIu8 ")",
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vm_getbits(command, 7, 8), vm_getbits(command, 15, 6));
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break;
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default:
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fprintf(MSG_OUT, "WARNING: Unknown link instruction");
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}
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}
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static void print_jump_instruction(command_t* command) {
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switch(vm_getbits(command, 51, 4)) {
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case 1:
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fprintf(MSG_OUT, "Exit");
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break;
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case 2:
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fprintf(MSG_OUT, "JumpTT %" PRIu8, vm_getbits(command, 22, 7));
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break;
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case 3:
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fprintf(MSG_OUT, "JumpVTS_TT %" PRIu8, vm_getbits(command, 22, 7));
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break;
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case 5:
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fprintf(MSG_OUT, "JumpVTS_PTT %" PRIu8 ":%" PRIu16,
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vm_getbits(command, 22, 7), vm_getbits(command, 41, 10));
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break;
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case 6:
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switch(vm_getbits(command, 23, 2)) {
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case 0:
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fprintf(MSG_OUT, "JumpSS FP");
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break;
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case 1:
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fprintf(MSG_OUT, "JumpSS VMGM (menu %" PRIu8 ")", vm_getbits(command, 19, 4));
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break;
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case 2:
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fprintf(MSG_OUT, "JumpSS VTSM (vts %" PRIu8 ", title %" PRIu8
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", menu %" PRIu8 ")", vm_getbits(command, 30, 7), vm_getbits(command, 38, 7), vm_getbits(command, 19, 4));
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break;
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case 3:
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fprintf(MSG_OUT, "JumpSS VMGM (pgc %" PRIu8 ")", vm_getbits(command, 46, 15));
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break;
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}
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break;
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case 8:
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switch(vm_getbits(command, 23, 2)) {
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case 0:
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fprintf(MSG_OUT, "CallSS FP (rsm_cell %" PRIu8 ")",
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vm_getbits(command, 31, 8));
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break;
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case 1:
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fprintf(MSG_OUT, "CallSS VMGM (menu %" PRIu8
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", rsm_cell %" PRIu8 ")", vm_getbits(command, 19, 4), vm_getbits(command, 31, 8));
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break;
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case 2:
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fprintf(MSG_OUT, "CallSS VTSM (menu %" PRIu8
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", rsm_cell %" PRIu8 ")", vm_getbits(command, 19, 4), vm_getbits(command, 31, 8));
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break;
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case 3:
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fprintf(MSG_OUT, "CallSS VMGM (pgc %" PRIu8 ", rsm_cell %" PRIu8 ")",
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vm_getbits(command, 46, 15), vm_getbits(command, 31, 8));
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break;
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}
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break;
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default:
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fprintf(MSG_OUT, "WARNING: Unknown Jump/Call instruction");
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}
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}
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static void print_system_set(command_t* command) {
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int i;
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/* FIXME: What about SPRM11 ? Karaoke */
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/* Surely there must be some system set command for that ? */
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switch(vm_getbits(command, 59, 4)) {
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case 1: /* Set system reg 1 &| 2 &| 3 (Audio, Subp. Angle) */
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for(i = 1; i <= 3; i++) {
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if(vm_getbits(command, 47 - (i*8), 1)) {
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print_system_reg(i);
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fprintf(MSG_OUT, " = ");
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print_reg_or_data_2(command, vm_getbits(command, 60, 1), 47 - (i*8) );
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fprintf(MSG_OUT, " ");
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}
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}
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break;
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case 2: /* Set system reg 9 & 10 (Navigation timer, Title PGC number) */
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print_system_reg(9);
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fprintf(MSG_OUT, " = ");
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print_reg_or_data(command, vm_getbits(command, 60, 1), 47);
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fprintf(MSG_OUT, " ");
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print_system_reg(10);
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fprintf(MSG_OUT, " = %" PRIu16, vm_getbits(command, 30, 15)); /* ?? */
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break;
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case 3: /* Mode: Counter / Register + Set */
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fprintf(MSG_OUT, "SetMode ");
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if(vm_getbits(command, 23, 1))
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fprintf(MSG_OUT, "Counter ");
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else
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fprintf(MSG_OUT, "Register ");
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print_g_reg(vm_getbits(command, 19, 4));
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print_set_op(0x1); /* '=' */
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print_reg_or_data(command, vm_getbits(command, 60, 1), 47);
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break;
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case 6: /* Set system reg 8 (Highlighted button) */
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print_system_reg(8);
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if(vm_getbits(command, 60, 1)) /* immediate */
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fprintf(MSG_OUT, " = 0x%x (button no %d)", vm_getbits(command, 31, 16), vm_getbits(command, 31, 6));
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else
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fprintf(MSG_OUT, " = g[%" PRIu8 "]", vm_getbits(command, 19, 4));
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break;
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default:
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fprintf(MSG_OUT, "WARNING: Unknown system set instruction (%i)",
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vm_getbits(command, 59, 4));
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}
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}
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static void print_set_version_1(command_t* command) {
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uint8_t set_op = vm_getbits(command, 59, 4);
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if(set_op) {
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print_g_reg(vm_getbits(command, 35, 4));
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print_set_op(set_op);
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print_reg_or_data(command, vm_getbits(command, 60, 1), 31);
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} else {
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fprintf(MSG_OUT, "NOP");
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}
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}
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static void print_set_version_2(command_t* command) {
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uint8_t set_op = vm_getbits(command, 59, 4);
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if(set_op) {
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print_g_reg(vm_getbits(command, 51, 4));
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print_set_op(set_op);
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print_reg_or_data(command, vm_getbits(command, 60, 1), 47);
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} else {
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fprintf(MSG_OUT, "NOP");
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}
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}
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static void print_set_version_3(command_t* command) {
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uint8_t set_op = vm_getbits(command, 59, 4);
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if(set_op) {
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print_g_reg(vm_getbits(command, 51, 4));
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print_set_op(set_op);
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print_reg_or_data_3(command, vm_getbits(command, 60, 1), 47);
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} else {
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fprintf(MSG_OUT, "NOP");
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}
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}
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void vm_print_mnemonic(vm_cmd_t *vm_command) {
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command_t command;
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command.instruction =( (uint64_t) vm_command->bytes[0] << 56 ) |
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( (uint64_t) vm_command->bytes[1] << 48 ) |
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( (uint64_t) vm_command->bytes[2] << 40 ) |
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( (uint64_t) vm_command->bytes[3] << 32 ) |
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( (uint64_t) vm_command->bytes[4] << 24 ) |
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( (uint64_t) vm_command->bytes[5] << 16 ) |
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( (uint64_t) vm_command->bytes[6] << 8 ) |
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(uint64_t) vm_command->bytes[7] ;
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command.examined = 0;
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|
|
switch(vm_getbits(&command,63,3)) { /* three first bits */
|
|
case 0: /* Special instructions */
|
|
print_if_version_1(&command);
|
|
print_special_instruction(&command);
|
|
break;
|
|
case 1: /* Jump/Call or Link instructions */
|
|
if(vm_getbits(&command,60,1)) {
|
|
print_if_version_2(&command);
|
|
print_jump_instruction(&command);
|
|
} else {
|
|
print_if_version_1(&command);
|
|
print_link_instruction(&command, 0); /* must be pressent */
|
|
}
|
|
break;
|
|
case 2: /* Set System Parameters instructions */
|
|
print_if_version_2(&command);
|
|
print_system_set(&command);
|
|
print_link_instruction(&command, 1); /* either 'if' or 'link' */
|
|
break;
|
|
case 3: /* Set General Parameters instructions */
|
|
print_if_version_3(&command);
|
|
print_set_version_1(&command);
|
|
print_link_instruction(&command, 1); /* either 'if' or 'link' */
|
|
break;
|
|
case 4: /* Set, Compare -> LinkSub instructions */
|
|
print_set_version_2(&command);
|
|
fprintf(MSG_OUT, ", ");
|
|
print_if_version_4(&command);
|
|
print_linksub_instruction(&command);
|
|
break;
|
|
case 5: /* Compare -> (Set and LinkSub) instructions */
|
|
print_if_version_5(&command);
|
|
fprintf(MSG_OUT, "{ ");
|
|
print_set_version_3(&command);
|
|
fprintf(MSG_OUT, ", ");
|
|
print_linksub_instruction(&command);
|
|
fprintf(MSG_OUT, " }");
|
|
break;
|
|
case 6: /* Compare -> Set, always LinkSub instructions */
|
|
print_if_version_5(&command);
|
|
fprintf(MSG_OUT, "{ ");
|
|
print_set_version_3(&command);
|
|
fprintf(MSG_OUT, " } ");
|
|
print_linksub_instruction(&command);
|
|
break;
|
|
default:
|
|
fprintf(MSG_OUT, "WARNING: Unknown instruction type (%i)", vm_getbits(&command, 63, 3));
|
|
}
|
|
/* Check if there still are bits set that were not examined */
|
|
|
|
if(command.instruction & ~ command.examined) {
|
|
fprintf(MSG_OUT, " libdvdnav: vmcmd.c: [WARNING, unknown bits:");
|
|
fprintf(MSG_OUT, " %08llx", (command.instruction & ~ command.examined) );
|
|
fprintf(MSG_OUT, "]");
|
|
}
|
|
}
|
|
|
|
void vm_print_cmd(int row, vm_cmd_t *vm_command) {
|
|
int i;
|
|
|
|
fprintf(MSG_OUT, "(%03d) ", row + 1);
|
|
for(i = 0; i < 8; i++)
|
|
fprintf(MSG_OUT, "%02x ", vm_command->bytes[i]);
|
|
fprintf(MSG_OUT, "| ");
|
|
|
|
vm_print_mnemonic(vm_command);
|
|
fprintf(MSG_OUT, "\n");
|
|
}
|
|
|