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G3 CPU upgrade property.

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This commit is contained in:
joevt 2023-10-30 20:53:36 -07:00 committed by dingusdev
parent 5c2bd0b3bb
commit 74274f164d
3 changed files with 42 additions and 6 deletions
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16
machines/machinecatalyst.cpp
View File

@ -76,8 +76,22 @@ int initialize_catalyst(std::string& id)
// allocate and map physical RAM
platinum_obj->map_phys_ram();
std::string cpu = GET_STR_PROP("cpu");
if (cpu == "601") {
// init virtual CPU and request MPC601
ppc_cpu_init(platinum_obj, PPC_VER::MPC601, 7833600ULL);
}
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, timebase_freq);
// set CPU PLL ratio to 3.5
ppc_state.spr[SPR::HID1] = 0xE << 28;
}
return 0;
}
@ -93,6 +107,8 @@ static const PropMap pm7200_settings = {
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"emmo",
new BinProperty(0)},
{"cpu",
new StrProperty("601", vector<std::string>({"601", "750"}))},
};
static vector<string> pm7200_devices = {

1
machines/machinefactory.cpp
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@ -97,6 +97,7 @@ static const map<string, string> PropHelp = {
{"vci_F", "insert a VCI device 0x0F"},
{"serial_backend", "specifies the backend for the serial port"},
{"emmo", "enables/disables factory HW tests during startup"},
{"cpu", "specifies CPU"},
};
bool MachineFactory::add(const string& machine_id, MachineDescription desc)

27
machines/machinetnt.cpp
View File

@ -99,14 +99,27 @@ int initialize_tnt(std::string& id)
memctrl_obj->map_phys_ram();
// init virtual CPU
if (id == "pm7300")
std::string cpu = GET_STR_PROP("cpu");
if (cpu == "604e")
ppc_cpu_init(memctrl_obj, PPC_VER::MPC604E, 12500000ULL);
else
else if (cpu == "601")
ppc_cpu_init(memctrl_obj, PPC_VER::MPC601, 7833600ULL);
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(memctrl_obj, PPC_VER::MPC750, timebase_freq);
// set CPU PLL ratio to 3.5
ppc_state.spr[SPR::HID1] = 0xE << 28;
}
return 0;
}
template <uint32_t cpu>
static const PropMap pm7500_settings = {
{"rambank1_size",
new IntProperty(16, vector<uint32_t>({4, 8, 16, 32, 64, 128}))},
@ -122,6 +135,12 @@ static const PropMap pm7500_settings = {
new BinProperty(0)},
{"has_mesh",
new BinProperty(1)},
{"cpu",
new StrProperty(
cpu == PPC_VER::MPC601 ? "601" :
cpu == PPC_VER::MPC604 ? "604" :
cpu == PPC_VER::MPC604E ? "604e" :
"604e", vector<std::string>({"601", "604", "604e", "750"}))},
};
static vector<string> pm7500_devices = {
@ -132,7 +151,7 @@ static const MachineDescription pm7300_descriptor = {
.name = "pm7300",
.description = "Power Macintosh 7300",
.devices = pm7500_devices,
.settings = pm7500_settings,
.settings = pm7500_settings<PPC_VER::MPC604E>,
.init_func = &initialize_tnt
};
@ -140,7 +159,7 @@ static const MachineDescription pm7500_descriptor = {
.name = "pm7500",
.description = "Power Macintosh 7500",
.devices = pm7500_devices,
.settings = pm7500_settings,
.settings = pm7500_settings<PPC_VER::MPC601>,
.init_func = &initialize_tnt
};