dingusppc/machines/machinepdm.cpp
2022-02-06 01:50:54 +01:00

110 lines
3.5 KiB
C++

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-21 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 Construct a PDM-style PowerMacintosh machine.
Author: Max Poliakovski
*/
#include <cpu/ppc/ppcemu.h>
#include <devices/common/machineid.h>
#include <devices/common/scsi/scsi.h>
#include <devices/floppy/floppyimg.h>
#include <devices/ioctrl/amic.h>
#include <devices/memctrl/hmc.h>
#include <devices/sound/soundserver.h>
#include <loguru.hpp>
#include <machines/machinebase.h>
#include <machines/machineproperties.h>
#include <string>
int create_pdm(std::string& id) {
if (gMachineObj) {
LOG_F(ERROR, "PDM Factory: global machine object not empty!");
return -1;
}
LOG_F(INFO, "Initializing the %s hardware...", id.c_str());
/* initialize the global machine object */
gMachineObj.reset(new MachineBase("PDM"));
/* register HMC memory controller */
gMachineObj->add_component("HMC", new HMC);
/* start the sound server. */
gMachineObj->add_component("SoundServer", new SoundServer());
/* register AMIC I/O controller */
gMachineObj->add_component("AMIC", new AMIC);
/* get raw pointer to HMC object */
HMC* hmc_obj = dynamic_cast<HMC*>(gMachineObj->get_comp_by_name("HMC"));
// allocate machine ID register and tell we're running PowerMac 6100
// TODO: add a possibility to select another machine
// to be used with the same ROM
gMachineObj->add_component("MachineID", new NubusMacID(0x3010));
hmc_obj->add_mmio_region(0x5FFFFFFC, 4,
dynamic_cast<MMIODevice*>(gMachineObj->get_comp_by_name("MachineID")));
/* allocate ROM region */
if (!hmc_obj->add_rom_region(0x40000000, 0x400000)) {
LOG_F(ERROR, "Could not allocate ROM region!\n");
return -1;
}
/* mirror ROM to 0xFFC00000 for a PowerPC CPU to start */
if (!hmc_obj->add_mem_mirror(0xFFC00000, 0x40000000)) {
LOG_F(ERROR, "Could not create ROM mirror!\n");
return -1;
}
/* add 8MB of soldered on-board RAM */
if (!hmc_obj->add_ram_region(0x00000000, 0x800000)) {
LOG_F(ERROR, "Could not allocate built-in RAM region!\n");
return -1;
}
/* add internal SCSI bus */
gMachineObj->add_component("SCSI0", new ScsiBus);
/* Init virtual CPU and request MPC601 */
ppc_cpu_init(hmc_obj, PPC_VER::MPC601);
// post-initialize all devices
if (gMachineObj->postinit_devices()) {
LOG_F(ERROR, "Could not post-initialize devices!\n");
return -1;
}
/* check for a floppy image to be inserted into the virtual superdrive */
std::string fdd_path = GET_STR_PROP("fdd_img");
if (!fdd_path.empty()) {
open_floppy_image(fdd_path.c_str());
}
LOG_F(INFO, "Initialization completed.\n");
return 0;
}