146 lines
4.6 KiB
C++
146 lines
4.6 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-20 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
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 3 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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** @file Factory for creating different machines.
|
|
|
|
Author: Max Poliakovski
|
|
*/
|
|
|
|
#include "machinefactory.h"
|
|
#include "devices/memctrlbase.h"
|
|
#include "memreadwrite.h"
|
|
#include <cinttypes>
|
|
#include <cstring>
|
|
#include <fstream>
|
|
#include <iostream>
|
|
#include <map>
|
|
#include <thirdparty/loguru/loguru.hpp>
|
|
|
|
using namespace std;
|
|
|
|
/**
|
|
Power Macintosh ROM identification string
|
|
|
|
is located in the ConfigInfo structure starting at 0x30D064 (PCI Macs)
|
|
or 0x30C064 (Nubus Macs).
|
|
*/
|
|
static const map<uint32_t, string> rom_identity = {
|
|
{0x416C6368, "Performa 6400"}, // Alchemy
|
|
//{"Come", "PowerBook 2400"}, //Comet
|
|
{0x436F7264, "Power Mac 5200/6200 series"}, // Cordyceps
|
|
{0x47617A65, "Power Mac 6500"}, // Gazelle
|
|
{0x476F7373, "Power Mac G3 Beige"}, // Gossamer
|
|
{0x47525820, "PowerBook G3 Wallstreet"},
|
|
//{"Hoop", "PowerBook 3400"}, //Hooper
|
|
{0x50425820, "PowerBook Pre-G3"},
|
|
{0x50444D20, "Nubus Power Mac or WGS"}, // Piltdown Man (6100/7100/8100)
|
|
{0x50697020, "Bandai Pippin"}, // Pippin
|
|
//{"Powe", "Generic Power Mac"}, //PowerMac?
|
|
//{"Spar", "20th Anniversay Mac"}, //Spartacus
|
|
{0x544E5420, "Power Mac 7xxxx/8xxx series"}, // Trinitrotoluene :-)
|
|
{0x5A616E7A, "Power Mac 4400/7220"}, // Zanzibar
|
|
//{"????", "A clone, perhaps?"} //N/A (Placeholder ID)
|
|
};
|
|
|
|
|
|
int create_machine_for_id(uint32_t id) {
|
|
switch (id) {
|
|
case 0x476F7373:
|
|
create_gossamer();
|
|
break;
|
|
default:
|
|
LOG_F(ERROR, "Unknown machine ID: %X", id);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Read ROM file content and transfer it to the dedicated ROM region */
|
|
void load_rom(ifstream& rom_file, uint32_t file_size) {
|
|
unsigned char* sysrom_mem = new unsigned char[file_size];
|
|
|
|
rom_file.seekg(0, ios::beg);
|
|
rom_file.read((char*)sysrom_mem, file_size);
|
|
|
|
MemCtrlBase* mem_ctrl = dynamic_cast<MemCtrlBase*>(
|
|
gMachineObj->get_comp_by_type(HWCompType::MEM_CTRL));
|
|
|
|
mem_ctrl->set_data(0xFFC00000, sysrom_mem, file_size);
|
|
delete[] sysrom_mem;
|
|
}
|
|
|
|
|
|
int create_machine_for_rom(const char* rom_filepath) {
|
|
ifstream rom_file;
|
|
uint32_t file_size, config_info_offset, rom_id;
|
|
char rom_id_str[17];
|
|
|
|
rom_file.open(rom_filepath, ios::in | ios::binary);
|
|
if (rom_file.fail()) {
|
|
LOG_F(ERROR, "Cound not open the specified ROM file.");
|
|
rom_file.close();
|
|
return -1;
|
|
}
|
|
|
|
rom_file.seekg(0, rom_file.end);
|
|
file_size = rom_file.tellg();
|
|
rom_file.seekg(0, rom_file.beg);
|
|
|
|
if (file_size != 0x400000UL) {
|
|
LOG_F(ERROR, "Unxpected ROM File size. Expected size is 4 megabytes.");
|
|
rom_file.close();
|
|
return -1;
|
|
}
|
|
|
|
/* read config info offset from file */
|
|
config_info_offset = 0;
|
|
rom_file.seekg(0x300080, ios::beg);
|
|
rom_file.read((char*)&config_info_offset, 4);
|
|
config_info_offset = READ_DWORD_BE_A(&config_info_offset);
|
|
|
|
/* rewind to ConfigInfo.BootstrapVersion field */
|
|
rom_file.seekg(0x300064 + config_info_offset, ios::beg);
|
|
|
|
/* read BootstrapVersion as C string */
|
|
rom_file.read(rom_id_str, 16);
|
|
rom_id_str[16] = 0;
|
|
LOG_F(INFO, "ROM BootstrapVersion: %s", rom_id_str);
|
|
|
|
if (strncmp(rom_id_str, "Boot", 4) != 0) {
|
|
LOG_F(ERROR, "Invalid BootstrapVersion string.");
|
|
rom_file.close();
|
|
return -1;
|
|
}
|
|
|
|
/* convert BootstrapVersion string to ROM ID */
|
|
rom_id = (rom_id_str[5] << 24) | (rom_id_str[6] << 16) | (rom_id_str[7] << 8) | rom_id_str[8];
|
|
|
|
LOG_F(INFO, "The machine is identified as... %s\n", rom_identity.at(rom_id).c_str());
|
|
|
|
create_machine_for_id(rom_id);
|
|
|
|
load_rom(rom_file, file_size);
|
|
|
|
rom_file.close();
|
|
return 0;
|
|
}
|