dingusppc/machines/machinecatalyst.cpp

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-24 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 Catalyst (Power Macintosh 7200) machine. */
#include <cpu/ppc/ppcemu.h>
#include <devices/common/machineid.h>
#include <devices/common/pci/pcidevice.h>
#include <devices/common/pci/pcihost.h>
#include <devices/common/scsi/scsicdrom.h>
#include <devices/common/scsi/scsihd.h>
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#include <devices/memctrl/platinum.h>
#include <loguru.hpp>
#include <machines/machinebase.h>
#include <machines/machinefactory.h>
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#include <machines/machineproperties.h>
#include <memctrl/memctrlbase.h>
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#include <string>
int initialize_catalyst(std::string& id)
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{
LOG_F(INFO, "Building machine Catalyst...");
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PlatinumCtrl* platinum_obj;
PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Bandit1"));
// get (raw) pointer to the I/O controller
GrandCentral* gc_obj = dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentral"));
// connect GrandCentral I/O controller to the PCI1 bus
pci_host->pci_register_device(DEV_FUN(0x10,0), gc_obj);
// attach IOBus Device #1 0xF301A000
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)
(0 << 11) | // 2-bit box ID
0xE000U // 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
platinum_obj = dynamic_cast<PlatinumCtrl*>(gMachineObj->get_comp_by_name("Platinum"));
// allocate ROM region
if (!platinum_obj->add_rom_region(0xFFC00000, 0x400000)) {
LOG_F(ERROR, "Could not allocate ROM region!");
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return -1;
}
// plug 8MB RAM DIMM into slot #0
platinum_obj->insert_ram_dimm(0, DRAM_CAP_8MB);
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// allocate and map physical RAM
platinum_obj->map_phys_ram();
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std::string cpu = GET_STR_PROP("cpu");
if (cpu == "601") {
// init virtual CPU and request MPC601
ppc_cpu_init(platinum_obj, PPC_VER::MPC601, true, 7833600ULL);
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}
else if (cpu == "750") {
// configure CPU clocks
uint64_t bus_freq = 50000000ULL;
uint64_t timebase_freq = bus_freq / 4;
// initialize virtual CPU and request MPC750 CPU aka G3
ppc_cpu_init(platinum_obj, PPC_VER::MPC750, false, timebase_freq);
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// set CPU PLL ratio to 3.5
ppc_state.spr[SPR::HID1] = 0xE << 28;
}
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return 0;
}
static const PropMap pm7200_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}))},
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{"emmo",
new BinProperty(0)},
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{"cpu",
new StrProperty("601", vector<std::string>({"601", "750"}))},
};
static vector<string> pm7200_devices = {
"Platinum", "Bandit1", "GrandCentral"
};
static const MachineDescription pm7200_descriptor = {
.name = "pm7200",
.description = "Power Macintosh 7200",
.devices = pm7200_devices,
.settings = pm7200_settings,
.init_func = &initialize_catalyst
};
REGISTER_MACHINE(pm7200, pm7200_descriptor);