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Adds just enough to get a 65816 ticking over.

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This commit is contained in:
Thomas Harte 2020-10-21 21:19:18 -04:00
parent 62231708d7
commit 43611792ac
1 changed files with 55 additions and 7 deletions
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62
Machines/Apple/AppleIIgs/AppleIIgs.cpp
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@ -8,24 +8,72 @@
#include "AppleIIgs.hpp"
#include "../../MachineTypes.hpp"
#include "../../../Processors/65816/65816.hpp"
#include "../../../Analyser/Static/AppleIIgs/Target.hpp"
namespace Apple {
namespace IIgs {
class ConcreteMachine:
public Apple::IIgs::Machine,
public MachineTypes::TimedMachine,
public MachineTypes::ScanProducer,
public CPU::MOS6502Esque::BusHandler<uint32_t> {
public:
ConcreteMachine(const Analyser::Static::AppleIIgs::Target &target, const ROMMachine::ROMFetcher &rom_fetcher) :
m65816_(*this) {
set_clock_rate(14318180.0);
using Target = Analyser::Static::AppleIIgs::Target;
std::vector<ROMMachine::ROM> rom_descriptions;
const std::string machine_name = "AppleIIgs";
switch(target.model) {
case Target::Model::ROM00:
/* TODO */
case Target::Model::ROM01:
rom_descriptions.emplace_back(machine_name, "the Apple IIgs ROM01", "apple2gs.rom", 128*1024, 0x42f124b0);
break;
case Target::Model::ROM03:
rom_descriptions.emplace_back(machine_name, "the Apple IIgs ROM03", "apple2gs.rom2", 256*1024, 0xde7ddf29);
break;
}
const auto roms = rom_fetcher(rom_descriptions);
if(!roms[0]) {
throw ROMMachine::Error::MissingROMs;
}
}
void run_for(const Cycles cycles) override {
m65816_.run_for(cycles);
}
void set_scan_target(Outputs::Display::ScanTarget *) override {
}
Outputs::Display::ScanStatus get_scaled_scan_status() const override {
return Outputs::Display::ScanStatus();
}
forceinline Cycles perform_bus_operation(const CPU::WDC65816::BusOperation operation, const uint32_t address, uint8_t *const value) {
return Cycles(5);
}
private:
CPU::WDC65816::Processor<ConcreteMachine, false> m65816_;
};
}
}
using namespace Apple::IIgs;
Machine *Machine::AppleIIgs(const Analyser::Static::Target *target, const ROMMachine::ROMFetcher &rom_fetcher) {
using Target = Analyser::Static::AppleIIgs::Target;
// TODO.
(void)target;
(void)rom_fetcher;
return nullptr;
return new ConcreteMachine(*dynamic_cast<const Analyser::Static::AppleIIgs::Target *>(target), rom_fetcher);
}
Machine::~Machine() {}