dingusppc/machines/machinetnt.cpp

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 divingkatae and maximum
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(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 Constructs a TNT (Power Macintosh 7500, 8500 etc) machine. */
#include <cpu/ppc/ppcemu.h>
#include <devices/common/machineid.h>
#include <devices/common/pci/pcihost.h>
#include <devices/common/pci/pcidevice.h>
#include <devices/ioctrl/macio.h>
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#include <devices/memctrl/hammerhead.h>
#include <loguru.hpp>
#include <machines/machinebase.h>
#include <machines/machinefactory.h>
#include <machines/machineproperties.h>
#include <string>
int initialize_tnt(std::string& id)
{
LOG_F(INFO, "Building machine TNT...");
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HammerheadCtrl* memctrl_obj;
PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Bandit1"));
// connect GrandCentral I/O controller to the PCI1 bus
pci_host->pci_register_device(
DEV_FUN(0x10,0), dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("GrandCentral")));
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// get video PCI controller object
PCIHost *vci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Chaos"));
// connect built-in video device to the VCI bus
vci_host->pci_register_device(
DEV_FUN(0x0B,0), dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("ControlVideo")));
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// get (raw) pointer to the I/O controller
GrandCentral* gc_obj = dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentral"));
gMachineObj->add_device("BoardReg1", std::unique_ptr<BoardRegister>(
new BoardRegister("Board Register 1",
0x3F | // pull up all PRSNT bits
((GET_BIN_PROP("emmo") ^ 1) << 8) | // factory tests (active low)
((GET_BIN_PROP("has_sixty6") ^ 1) << 13) | // composite video out (active low)
(GET_BIN_PROP("has_mesh") << 14) | // fast SCSI (active high)
0x8000U // pull up unused bits
)));
gc_obj->attach_iodevice(0, dynamic_cast<BoardRegister*>(gMachineObj->get_comp_by_name("BoardReg1")));
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// get (raw) pointer to the memory controller
memctrl_obj = dynamic_cast<HammerheadCtrl*>(gMachineObj->get_comp_by_name("Hammerhead"));
memctrl_obj->set_motherboard_id(Hammerhead::MBID_VCI0_PRESENT);
memctrl_obj->set_bus_speed(Hammerhead::BUS_SPEED_50_MHZ);
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// allocate ROM region
if (!memctrl_obj->add_rom_region(0xFFC00000, 0x400000)) {
LOG_F(ERROR, "Could not allocate ROM region!");
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return -1;
}
// plug 16MB RAM DIMM into slot #0
memctrl_obj->insert_ram_dimm(0, DRAM_CAP_16MB);
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// allocate and map physical RAM
memctrl_obj->map_phys_ram();
// init virtual CPU and request MPC601
ppc_cpu_init(memctrl_obj, PPC_VER::MPC601, 7833600ULL);
return 0;
}
static const PropMap pm7500_settings = {
{"rambank1_size",
new IntProperty(16, vector<uint32_t>({4, 8, 16, 32, 64, 128}))},
{"rambank2_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"rambank3_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"rambank4_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"gfxmem_size",
new IntProperty( 1, vector<uint32_t>({1, 2, 4}))},
{"emmo",
new BinProperty(0)},
{"has_sixty6",
new BinProperty(0)},
{"has_mesh",
new BinProperty(1)},
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};
static vector<string> pm7500_devices = {
"Hammerhead", "Bandit1", "Chaos", "GrandCentral", "ControlVideo"
};
static const MachineDescription pm7500_descriptor = {
.name = "pm7500",
.description = "Power Macintosh 7500",
.devices = pm7500_devices,
.settings = pm7500_settings,
.init_func = &initialize_tnt
};
REGISTER_MACHINE(pm7500, pm7500_descriptor);