mirror of
https://github.com/TomHarte/CLK.git
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Merge pull request #202 from TomHarte/AtariInline
Catches the Atari 2600 up with the no-internals-published trend.
This commit is contained in:
Thomas Harte
GitHub
commit
f1e64169cd
@ -45,7 +45,7 @@ enum Key: uint16_t {
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};
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/*!
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Models an Amstrad CPC, a CRT-outputting machine with a keyboard that can accept configuration targets.
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Models an Amstrad CPC.
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*/
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class Machine:
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public CRTMachine::Machine,
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@ -54,7 +54,7 @@ class Machine:
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public:
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virtual ~Machine();
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/// Creates an returns an Amstrad CPC on the heap.
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/// Creates and returns an Amstrad CPC on the heap.
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static Machine *AmstradCPC();
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/// Sets the contents of rom @c type to @c data. Assumed to be a setup step; has no effect once a machine is running.
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@ -23,135 +23,183 @@
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#include "Cartridges/Tigervision.hpp"
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#include "Cartridges/Unpaged.hpp"
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using namespace Atari2600;
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namespace {
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static const double NTSC_clock_rate = 1194720;
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static const double PAL_clock_rate = 1182298;
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}
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Machine::Machine() :
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frame_record_pointer_(0),
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is_ntsc_(true) {
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set_clock_rate(NTSC_clock_rate);
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}
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namespace Atari2600 {
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void Machine::setup_output(float aspect_ratio) {
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bus_->tia_.reset(new TIA);
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bus_->speaker_.reset(new Speaker);
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bus_->speaker_->set_input_rate((float)(get_clock_rate() / (double)CPUTicksPerAudioTick));
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bus_->tia_->get_crt()->set_delegate(this);
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}
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void Machine::close_output() {
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bus_.reset();
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}
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Machine::~Machine() {
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close_output();
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}
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void Machine::set_digital_input(Atari2600DigitalInput input, bool state) {
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switch (input) {
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case Atari2600DigitalInputJoy1Up: bus_->mos6532_.update_port_input(0, 0x10, state); break;
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case Atari2600DigitalInputJoy1Down: bus_->mos6532_.update_port_input(0, 0x20, state); break;
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case Atari2600DigitalInputJoy1Left: bus_->mos6532_.update_port_input(0, 0x40, state); break;
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case Atari2600DigitalInputJoy1Right: bus_->mos6532_.update_port_input(0, 0x80, state); break;
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case Atari2600DigitalInputJoy2Up: bus_->mos6532_.update_port_input(0, 0x01, state); break;
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case Atari2600DigitalInputJoy2Down: bus_->mos6532_.update_port_input(0, 0x02, state); break;
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case Atari2600DigitalInputJoy2Left: bus_->mos6532_.update_port_input(0, 0x04, state); break;
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case Atari2600DigitalInputJoy2Right: bus_->mos6532_.update_port_input(0, 0x08, state); break;
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// TODO: latching
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case Atari2600DigitalInputJoy1Fire: if(state) bus_->tia_input_value_[0] &= ~0x80; else bus_->tia_input_value_[0] |= 0x80; break;
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case Atari2600DigitalInputJoy2Fire: if(state) bus_->tia_input_value_[1] &= ~0x80; else bus_->tia_input_value_[1] |= 0x80; break;
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default: break;
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}
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}
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void Machine::set_switch_is_enabled(Atari2600Switch input, bool state) {
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switch(input) {
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case Atari2600SwitchReset: bus_->mos6532_.update_port_input(1, 0x01, state); break;
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case Atari2600SwitchSelect: bus_->mos6532_.update_port_input(1, 0x02, state); break;
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case Atari2600SwitchColour: bus_->mos6532_.update_port_input(1, 0x08, state); break;
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case Atari2600SwitchLeftPlayerDifficulty: bus_->mos6532_.update_port_input(1, 0x40, state); break;
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case Atari2600SwitchRightPlayerDifficulty: bus_->mos6532_.update_port_input(1, 0x80, state); break;
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}
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}
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void Machine::configure_as_target(const StaticAnalyser::Target &target) {
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const std::vector<uint8_t> &rom = target.cartridges.front()->get_segments().front().data;
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switch(target.atari.paging_model) {
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case StaticAnalyser::Atari2600PagingModel::ActivisionStack: bus_.reset(new Cartridge::Cartridge<Cartridge::ActivisionStack>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::CBSRamPlus: bus_.reset(new Cartridge::Cartridge<Cartridge::CBSRAMPlus>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::CommaVid: bus_.reset(new Cartridge::Cartridge<Cartridge::CommaVid>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::MegaBoy: bus_.reset(new Cartridge::Cartridge<Cartridge::MegaBoy>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::MNetwork: bus_.reset(new Cartridge::Cartridge<Cartridge::MNetwork>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::None: bus_.reset(new Cartridge::Cartridge<Cartridge::Unpaged>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::ParkerBros: bus_.reset(new Cartridge::Cartridge<Cartridge::ParkerBros>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Pitfall2: bus_.reset(new Cartridge::Cartridge<Cartridge::Pitfall2>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Tigervision: bus_.reset(new Cartridge::Cartridge<Cartridge::Tigervision>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Atari8k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari8kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari8k>(rom));
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}
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break;
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case StaticAnalyser::Atari2600PagingModel::Atari16k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari16kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari16k>(rom));
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}
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break;
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case StaticAnalyser::Atari2600PagingModel::Atari32k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari32kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari32k>(rom));
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}
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break;
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}
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}
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#pragma mark - CRT delegate
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void Machine::crt_did_end_batch_of_frames(Outputs::CRT::CRT *crt, unsigned int number_of_frames, unsigned int number_of_unexpected_vertical_syncs) {
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const size_t number_of_frame_records = sizeof(frame_records_) / sizeof(frame_records_[0]);
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frame_records_[frame_record_pointer_ % number_of_frame_records].number_of_frames = number_of_frames;
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frame_records_[frame_record_pointer_ % number_of_frame_records].number_of_unexpected_vertical_syncs = number_of_unexpected_vertical_syncs;
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frame_record_pointer_ ++;
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if(frame_record_pointer_ >= 6) {
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unsigned int total_number_of_frames = 0;
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unsigned int total_number_of_unexpected_vertical_syncs = 0;
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for(size_t c = 0; c < number_of_frame_records; c++) {
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total_number_of_frames += frame_records_[c].number_of_frames;
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total_number_of_unexpected_vertical_syncs += frame_records_[c].number_of_unexpected_vertical_syncs;
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class ConcreteMachine:
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public Machine,
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public Outputs::CRT::Delegate {
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public:
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ConcreteMachine() :
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frame_record_pointer_(0),
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is_ntsc_(true) {
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set_clock_rate(NTSC_clock_rate);
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}
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if(total_number_of_unexpected_vertical_syncs >= total_number_of_frames >> 1) {
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for(size_t c = 0; c < number_of_frame_records; c++) {
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frame_records_[c].number_of_frames = 0;
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frame_records_[c].number_of_unexpected_vertical_syncs = 0;
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}
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is_ntsc_ ^= true;
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double clock_rate;
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if(is_ntsc_) {
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clock_rate = NTSC_clock_rate;
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bus_->tia_->set_output_mode(TIA::OutputMode::NTSC);
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} else {
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clock_rate = PAL_clock_rate;
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bus_->tia_->set_output_mode(TIA::OutputMode::PAL);
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}
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bus_->speaker_->set_input_rate((float)(clock_rate / (double)CPUTicksPerAudioTick));
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bus_->speaker_->set_high_frequency_cut_off((float)(clock_rate / ((double)CPUTicksPerAudioTick * 2.0)));
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set_clock_rate(clock_rate);
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~ConcreteMachine() {
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close_output();
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}
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}
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void configure_as_target(const StaticAnalyser::Target &target) {
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const std::vector<uint8_t> &rom = target.cartridges.front()->get_segments().front().data;
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switch(target.atari.paging_model) {
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case StaticAnalyser::Atari2600PagingModel::ActivisionStack: bus_.reset(new Cartridge::Cartridge<Cartridge::ActivisionStack>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::CBSRamPlus: bus_.reset(new Cartridge::Cartridge<Cartridge::CBSRAMPlus>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::CommaVid: bus_.reset(new Cartridge::Cartridge<Cartridge::CommaVid>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::MegaBoy: bus_.reset(new Cartridge::Cartridge<Cartridge::MegaBoy>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::MNetwork: bus_.reset(new Cartridge::Cartridge<Cartridge::MNetwork>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::None: bus_.reset(new Cartridge::Cartridge<Cartridge::Unpaged>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::ParkerBros: bus_.reset(new Cartridge::Cartridge<Cartridge::ParkerBros>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Pitfall2: bus_.reset(new Cartridge::Cartridge<Cartridge::Pitfall2>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Tigervision: bus_.reset(new Cartridge::Cartridge<Cartridge::Tigervision>(rom)); break;
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case StaticAnalyser::Atari2600PagingModel::Atari8k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari8kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari8k>(rom));
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}
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break;
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case StaticAnalyser::Atari2600PagingModel::Atari16k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari16kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari16k>(rom));
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}
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break;
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case StaticAnalyser::Atari2600PagingModel::Atari32k:
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if(target.atari.uses_superchip) {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari32kSuperChip>(rom));
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} else {
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bus_.reset(new Cartridge::Cartridge<Cartridge::Atari32k>(rom));
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}
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break;
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}
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}
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void set_digital_input(Atari2600DigitalInput input, bool state) {
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switch (input) {
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case Atari2600DigitalInputJoy1Up: bus_->mos6532_.update_port_input(0, 0x10, state); break;
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case Atari2600DigitalInputJoy1Down: bus_->mos6532_.update_port_input(0, 0x20, state); break;
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case Atari2600DigitalInputJoy1Left: bus_->mos6532_.update_port_input(0, 0x40, state); break;
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case Atari2600DigitalInputJoy1Right: bus_->mos6532_.update_port_input(0, 0x80, state); break;
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case Atari2600DigitalInputJoy2Up: bus_->mos6532_.update_port_input(0, 0x01, state); break;
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case Atari2600DigitalInputJoy2Down: bus_->mos6532_.update_port_input(0, 0x02, state); break;
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case Atari2600DigitalInputJoy2Left: bus_->mos6532_.update_port_input(0, 0x04, state); break;
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case Atari2600DigitalInputJoy2Right: bus_->mos6532_.update_port_input(0, 0x08, state); break;
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// TODO: latching
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case Atari2600DigitalInputJoy1Fire: if(state) bus_->tia_input_value_[0] &= ~0x80; else bus_->tia_input_value_[0] |= 0x80; break;
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case Atari2600DigitalInputJoy2Fire: if(state) bus_->tia_input_value_[1] &= ~0x80; else bus_->tia_input_value_[1] |= 0x80; break;
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default: break;
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}
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}
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void set_switch_is_enabled(Atari2600Switch input, bool state) {
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switch(input) {
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case Atari2600SwitchReset: bus_->mos6532_.update_port_input(1, 0x01, state); break;
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case Atari2600SwitchSelect: bus_->mos6532_.update_port_input(1, 0x02, state); break;
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case Atari2600SwitchColour: bus_->mos6532_.update_port_input(1, 0x08, state); break;
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case Atari2600SwitchLeftPlayerDifficulty: bus_->mos6532_.update_port_input(1, 0x40, state); break;
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case Atari2600SwitchRightPlayerDifficulty: bus_->mos6532_.update_port_input(1, 0x80, state); break;
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}
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}
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void set_reset_switch(bool state) {
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bus_->set_reset_line(state);
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}
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// to satisfy CRTMachine::Machine
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void setup_output(float aspect_ratio) {
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bus_->tia_.reset(new TIA);
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bus_->speaker_.reset(new Speaker);
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bus_->speaker_->set_input_rate((float)(get_clock_rate() / (double)CPUTicksPerAudioTick));
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bus_->tia_->get_crt()->set_delegate(this);
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}
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void close_output() {
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bus_.reset();
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}
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std::shared_ptr<Outputs::CRT::CRT> get_crt() {
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return bus_->tia_->get_crt();
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}
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std::shared_ptr<Outputs::Speaker> get_speaker() {
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return bus_->speaker_;
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}
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void run_for(const Cycles cycles) {
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bus_->run_for(cycles);
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}
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// to satisfy Outputs::CRT::Delegate
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void crt_did_end_batch_of_frames(Outputs::CRT::CRT *crt, unsigned int number_of_frames, unsigned int number_of_unexpected_vertical_syncs) {
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const size_t number_of_frame_records = sizeof(frame_records_) / sizeof(frame_records_[0]);
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frame_records_[frame_record_pointer_ % number_of_frame_records].number_of_frames = number_of_frames;
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frame_records_[frame_record_pointer_ % number_of_frame_records].number_of_unexpected_vertical_syncs = number_of_unexpected_vertical_syncs;
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frame_record_pointer_ ++;
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if(frame_record_pointer_ >= 6) {
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unsigned int total_number_of_frames = 0;
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unsigned int total_number_of_unexpected_vertical_syncs = 0;
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for(size_t c = 0; c < number_of_frame_records; c++) {
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total_number_of_frames += frame_records_[c].number_of_frames;
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total_number_of_unexpected_vertical_syncs += frame_records_[c].number_of_unexpected_vertical_syncs;
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}
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if(total_number_of_unexpected_vertical_syncs >= total_number_of_frames >> 1) {
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for(size_t c = 0; c < number_of_frame_records; c++) {
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frame_records_[c].number_of_frames = 0;
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frame_records_[c].number_of_unexpected_vertical_syncs = 0;
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}
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is_ntsc_ ^= true;
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double clock_rate;
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if(is_ntsc_) {
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clock_rate = NTSC_clock_rate;
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bus_->tia_->set_output_mode(TIA::OutputMode::NTSC);
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} else {
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clock_rate = PAL_clock_rate;
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bus_->tia_->set_output_mode(TIA::OutputMode::PAL);
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}
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bus_->speaker_->set_input_rate((float)(clock_rate / (double)CPUTicksPerAudioTick));
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bus_->speaker_->set_high_frequency_cut_off((float)(clock_rate / ((double)CPUTicksPerAudioTick * 2.0)));
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set_clock_rate(clock_rate);
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}
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}
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}
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private:
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// the bus
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std::unique_ptr<Bus> bus_;
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// output frame rate tracker
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struct FrameRecord {
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unsigned int number_of_frames;
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unsigned int number_of_unexpected_vertical_syncs;
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FrameRecord() : number_of_frames(0), number_of_unexpected_vertical_syncs(0) {}
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} frame_records_[4];
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unsigned int frame_record_pointer_;
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bool is_ntsc_;
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};
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}
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using namespace Atari2600;
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Machine *Machine::Atari2600() {
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return new Atari2600::ConcreteMachine;
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}
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Machine::~Machine() {}
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@ -9,59 +9,33 @@
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#ifndef Atari2600_cpp
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#define Atari2600_cpp
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#include <stdint.h>
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#include "../../Processors/6502/6502.hpp"
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#include "../CRTMachine.hpp"
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#include "Bus.hpp"
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#include "PIA.hpp"
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#include "Speaker.hpp"
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#include "TIA.hpp"
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#include "../ConfigurationTarget.hpp"
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#include "../CRTMachine.hpp"
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#include "Atari2600Inputs.h"
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namespace Atari2600 {
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/*!
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Models an Atari 2600.
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*/
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class Machine:
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public CRTMachine::Machine,
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public ConfigurationTarget::Machine,
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public Outputs::CRT::Delegate {
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public ConfigurationTarget::Machine {
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public:
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Machine();
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~Machine();
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virtual ~Machine();
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void configure_as_target(const StaticAnalyser::Target &target);
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void switch_region();
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/// Creates and returns an Atari 2600 on the heap.
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static Machine *Atari2600();
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void set_digital_input(Atari2600DigitalInput input, bool state);
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void set_switch_is_enabled(Atari2600Switch input, bool state);
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void set_reset_line(bool state) { bus_->set_reset_line(state); }
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/// Sets @c input to @c state.
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virtual void set_digital_input(Atari2600DigitalInput input, bool state) = 0;
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// to satisfy CRTMachine::Machine
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virtual void setup_output(float aspect_ratio);
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virtual void close_output();
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virtual std::shared_ptr<Outputs::CRT::CRT> get_crt() { return bus_->tia_->get_crt(); }
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virtual std::shared_ptr<Outputs::Speaker> get_speaker() { return bus_->speaker_; }
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virtual void run_for(const Cycles cycles) { bus_->run_for(cycles); }
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/// Sets the switch @c input to @c state.
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virtual void set_switch_is_enabled(Atari2600Switch input, bool state) = 0;
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||||
// to satisfy Outputs::CRT::Delegate
|
||||
virtual void crt_did_end_batch_of_frames(Outputs::CRT::CRT *crt, unsigned int number_of_frames, unsigned int number_of_unexpected_vertical_syncs);
|
||||
|
||||
private:
|
||||
// the bus
|
||||
std::unique_ptr<Bus> bus_;
|
||||
|
||||
// output frame rate tracker
|
||||
struct FrameRecord {
|
||||
unsigned int number_of_frames;
|
||||
unsigned int number_of_unexpected_vertical_syncs;
|
||||
|
||||
FrameRecord() : number_of_frames(0), number_of_unexpected_vertical_syncs(0) {}
|
||||
} frame_records_[4];
|
||||
unsigned int frame_record_pointer_;
|
||||
bool is_ntsc_;
|
||||
// Presses or releases the reset button.
|
||||
virtual void set_reset_switch(bool state) = 0;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
@ -12,7 +12,14 @@
|
||||
#import "CSMachine+Subclassing.h"
|
||||
|
||||
@implementation CSAtari2600 {
|
||||
Atari2600::Machine _atari2600;
|
||||
std::unique_ptr<Atari2600::Machine> _atari2600;
|
||||
}
|
||||
|
||||
- (CRTMachine::Machine * const)machine {
|
||||
if(!_atari2600) {
|
||||
_atari2600.reset(Atari2600::Machine::Atari2600());
|
||||
}
|
||||
return _atari2600.get();
|
||||
}
|
||||
|
||||
- (void)setDirection:(CSJoystickDirection)direction onPad:(NSUInteger)pad isPressed:(BOOL)isPressed {
|
||||
@ -25,19 +32,19 @@
|
||||
case CSJoystickDirectionRight: input = pad ? Atari2600DigitalInputJoy2Right : Atari2600DigitalInputJoy1Right; break;
|
||||
}
|
||||
@synchronized(self) {
|
||||
_atari2600.set_digital_input(input, isPressed ? true : false);
|
||||
_atari2600->set_digital_input(input, isPressed ? true : false);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setButtonAtIndex:(NSUInteger)button onPad:(NSUInteger)pad isPressed:(BOOL)isPressed {
|
||||
@synchronized(self) {
|
||||
_atari2600.set_digital_input(pad ? Atari2600DigitalInputJoy2Fire : Atari2600DigitalInputJoy1Fire, isPressed ? true : false);
|
||||
_atari2600->set_digital_input(pad ? Atari2600DigitalInputJoy2Fire : Atari2600DigitalInputJoy1Fire, isPressed ? true : false);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setResetLineEnabled:(BOOL)enabled {
|
||||
@synchronized(self) {
|
||||
_atari2600.set_reset_line(enabled ? true : false);
|
||||
_atari2600->set_reset_switch(enabled ? true : false);
|
||||
}
|
||||
}
|
||||
|
||||
@ -47,40 +54,36 @@
|
||||
}
|
||||
}
|
||||
|
||||
- (CRTMachine::Machine * const)machine {
|
||||
return &_atari2600;
|
||||
}
|
||||
|
||||
#pragma mark - Switches
|
||||
|
||||
- (void)setColourButton:(BOOL)colourButton {
|
||||
_colourButton = colourButton;
|
||||
@synchronized(self) {
|
||||
_atari2600.set_switch_is_enabled(Atari2600SwitchColour, colourButton);
|
||||
_atari2600->set_switch_is_enabled(Atari2600SwitchColour, colourButton);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setLeftPlayerDifficultyButton:(BOOL)leftPlayerDifficultyButton {
|
||||
_leftPlayerDifficultyButton = leftPlayerDifficultyButton;
|
||||
@synchronized(self) {
|
||||
_atari2600.set_switch_is_enabled(Atari2600SwitchLeftPlayerDifficulty, leftPlayerDifficultyButton);
|
||||
_atari2600->set_switch_is_enabled(Atari2600SwitchLeftPlayerDifficulty, leftPlayerDifficultyButton);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)setRightPlayerDifficultyButton:(BOOL)rightPlayerDifficultyButton {
|
||||
_rightPlayerDifficultyButton = rightPlayerDifficultyButton;
|
||||
@synchronized(self) {
|
||||
_atari2600.set_switch_is_enabled(Atari2600SwitchRightPlayerDifficulty, rightPlayerDifficultyButton);
|
||||
_atari2600->set_switch_is_enabled(Atari2600SwitchRightPlayerDifficulty, rightPlayerDifficultyButton);
|
||||
}
|
||||
}
|
||||
|
||||
- (void)toggleSwitch:(Atari2600Switch)toggleSwitch {
|
||||
@synchronized(self) {
|
||||
_atari2600.set_switch_is_enabled(toggleSwitch, true);
|
||||
_atari2600->set_switch_is_enabled(toggleSwitch, true);
|
||||
}
|
||||
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
|
||||
@synchronized(self) {
|
||||
_atari2600.set_switch_is_enabled(toggleSwitch, false);
|
||||
_atari2600->set_switch_is_enabled(toggleSwitch, false);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user