mirror of https://github.com/bsnes-emu/bsnes.git
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
#include <md/md.hpp>
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namespace MegaDrive {
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Cartridge cartridge;
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auto Cartridge::load() -> bool {
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information = Information();
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if(auto pathID = interface->load(ID::MegaDrive, "Mega Drive", "md")) {
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information.pathID = pathID();
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} else return false;
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if(auto fp = interface->open(pathID(), "manifest.bml", File::Read, File::Required)) {
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information.manifest = fp->reads();
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} else return false;
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auto document = BML::unserialize(information.manifest);
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information.title = document["information/title"].text();
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if(auto node = document["board/rom"]) {
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rom.size = node["size"].natural();
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rom.mask = bit::round(rom.size) - 1;
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if(rom.size) {
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rom.data = new uint8[rom.mask + 1];
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if(auto name = node["name"].text()) {
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if(auto fp = interface->open(pathID(), name, File::Read, File::Required)) {
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fp->read(rom.data, rom.size);
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}
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}
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}
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}
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if(auto node = document["board/ram"]) {
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ram.size = node["size"].natural();
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ram.mask = bit::round(ram.size) - 1;
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if(ram.size) {
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ram.data = new uint8[ram.mask + 1];
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if(auto name = node["name"].text()) {
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if(auto fp = interface->open(pathID(), name, File::Read)) {
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fp->read(ram.data, ram.size);
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}
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}
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}
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}
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return true;
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}
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auto Cartridge::save() -> void {
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auto document = BML::unserialize(information.manifest);
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if(auto name = document["board/ram/name"].text()) {
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if(auto fp = interface->open(pathID(), name, File::Write)) {
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fp->write(ram.data, ram.size);
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}
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}
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}
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auto Cartridge::unload() -> void {
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delete[] rom.data;
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delete[] ram.data;
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rom = Memory();
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ram = Memory();
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}
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auto Cartridge::power() -> void {
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}
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auto Cartridge::reset() -> void {
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}
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auto Cartridge::read(bool word, uint24 addr) -> uint16 {
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uint16 data = rom.data[addr & rom.mask];
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if(!word) return data;
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return data << 8 | rom.data[addr + 1 & rom.mask];
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}
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auto Cartridge::write(bool word, uint24 addr, uint16 data) -> void {
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}
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}
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