mirror of
https://github.com/dingusdev/dingusppc.git
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126 lines
4.5 KiB
C++
126 lines
4.5 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Constructs a TNT (Power Macintosh 7500, 8500 etc) machine. */
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#include <cpu/ppc/ppcemu.h>
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#include <devices/common/machineid.h>
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#include <devices/common/pci/pcihost.h>
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#include <devices/common/pci/pcidevice.h>
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#include <devices/ioctrl/macio.h>
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#include <devices/memctrl/hammerhead.h>
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#include <loguru.hpp>
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#include <machines/machinebase.h>
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#include <machines/machinefactory.h>
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#include <machines/machineproperties.h>
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#include <string>
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int initialize_tnt(std::string& id)
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{
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LOG_F(INFO, "Building machine TNT...");
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HammerheadCtrl* memctrl_obj;
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PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Bandit1"));
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// connect GrandCentral I/O controller to the PCI1 bus
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pci_host->pci_register_device(
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DEV_FUN(0x10,0), dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("GrandCentral")));
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// get video PCI controller object
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PCIHost *vci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Chaos"));
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// connect built-in video device to the VCI bus
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vci_host->pci_register_device(
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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
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GrandCentral* gc_obj = dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentral"));
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gMachineObj->add_device("BoardReg1", std::unique_ptr<BoardRegister>(
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new BoardRegister("Board Register 1",
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0x3F | // pull up all PRSNT bits
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((GET_BIN_PROP("emmo") ^ 1) << 8) | // factory tests (active low)
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((GET_BIN_PROP("has_sixty6") ^ 1) << 13) | // composite video out (active low)
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(GET_BIN_PROP("has_mesh") << 14) | // fast SCSI (active high)
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0x8000U // pull up unused bits
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)));
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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
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memctrl_obj = dynamic_cast<HammerheadCtrl*>(gMachineObj->get_comp_by_name("Hammerhead"));
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memctrl_obj->set_motherboard_id(Hammerhead::MBID_VCI0_PRESENT);
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memctrl_obj->set_bus_speed(Hammerhead::BUS_SPEED_50_MHZ);
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// allocate ROM region
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if (!memctrl_obj->add_rom_region(0xFFC00000, 0x400000)) {
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LOG_F(ERROR, "Could not allocate ROM region!");
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return -1;
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}
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// plug 16MB RAM DIMM into slot #0
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memctrl_obj->insert_ram_dimm(0, DRAM_CAP_16MB);
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// allocate and map physical RAM
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memctrl_obj->map_phys_ram();
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// init virtual CPU and request MPC601
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ppc_cpu_init(memctrl_obj, PPC_VER::MPC601, 7833600ULL);
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return 0;
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}
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static const PropMap pm7500_settings = {
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{"rambank1_size",
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new IntProperty(16, vector<uint32_t>({4, 8, 16, 32, 64, 128}))},
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{"rambank2_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"rambank3_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"rambank4_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"gfxmem_size",
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new IntProperty( 1, vector<uint32_t>({1, 2, 4}))},
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{"emmo",
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new BinProperty(0)},
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{"has_sixty6",
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new BinProperty(0)},
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{"has_mesh",
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new BinProperty(1)},
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};
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static vector<string> pm7500_devices = {
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"Hammerhead", "Bandit1", "Chaos", "GrandCentral", "ControlVideo"
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};
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static const MachineDescription pm7500_descriptor = {
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.name = "pm7500",
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.description = "Power Macintosh 7500",
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.devices = pm7500_devices,
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.settings = pm7500_settings,
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.init_func = &initialize_tnt
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};
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REGISTER_MACHINE(pm7500, pm7500_descriptor);
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