diff --git a/higan/emulator/emulator.hpp b/higan/emulator/emulator.hpp index 078c76d1..8120ac70 100644 --- a/higan/emulator/emulator.hpp +++ b/higan/emulator/emulator.hpp @@ -12,7 +12,7 @@ using namespace nall; namespace Emulator { static const string Name = "higan"; - static const string Version = "106.04"; + static const string Version = "106.05"; static const string Author = "byuu"; static const string License = "GPLv3"; static const string Website = "https://byuu.org/"; diff --git a/higan/sfc/cartridge/load.cpp b/higan/sfc/cartridge/load.cpp index b928853a..fb4326bc 100644 --- a/higan/sfc/cartridge/load.cpp +++ b/higan/sfc/cartridge/load.cpp @@ -50,7 +50,7 @@ auto Cartridge::loadBoard(Markup::Node node) -> Markup::Node { line.append(" size=", rom.left()["size"].text()); rom.removeLeft(); } - if(line.endsWith("ram")) { + if(line.endsWith("ram") && ram) { line.append(" name=", ram.left()["name"].text()); line.append(" size=", ram.left()["size"].text()); if(ram.left()["type"].text() == "RAM") line.append(" volatile"); @@ -115,14 +115,14 @@ auto Cartridge::loadGameBoy(Markup::Node node) -> void { } auto Cartridge::loadBSMemory(Markup::Node node) -> void { - information.title.bsMemory = node["information/title"].text(); + information.title.bsMemory = node["game/label"].text(); bsmemory.readonly = (node["board/rom/type"].text() == "mrom"); loadMemory(bsmemory.memory, node["board/rom"], File::Required, bsmemory.pathID); } auto Cartridge::loadSufamiTurboA(Markup::Node node) -> void { - information.title.sufamiTurboA = node["information/title"].text(); + information.title.sufamiTurboA = node["game/label"].text(); loadMemory(sufamiturboA.rom, node["board/rom"], File::Required, sufamiturboA.pathID); loadMemory(sufamiturboA.ram, node["board/ram"], File::Optional, sufamiturboA.pathID); @@ -136,7 +136,7 @@ auto Cartridge::loadSufamiTurboA(Markup::Node node) -> void { } auto Cartridge::loadSufamiTurboB(Markup::Node node) -> void { - information.title.sufamiTurboB = node["information/title"].text(); + information.title.sufamiTurboB = node["game/label"].text(); loadMemory(sufamiturboB.rom, node["board/rom"], File::Required, sufamiturboB.pathID); loadMemory(sufamiturboB.ram, node["board/ram"], File::Optional, sufamiturboB.pathID); diff --git a/higan/systems/Super Famicom.sys/boards.bml b/higan/systems/Super Famicom.sys/boards.bml index dc9e99df..f10f46c0 100644 --- a/higan/systems/Super Famicom.sys/boards.bml +++ b/higan/systems/Super Famicom.sys/boards.bml @@ -1,5 +1,5 @@ database - revision: 2018-02-08 + revision: 2018-02-10 //Boards (Production) @@ -414,19 +414,75 @@ board: YJ0N-01 //Boards (Generic) database - revision: 2018-02-08 + revision: 2018-02-10 -board: CX4 +board: BS-HIROM-NVRAM + rom + map address=00-1f,80-9f:8000-ffff + map address=40-5f,c0-df:0000-ffff + ram + map address=20-3f,a0-bf:6000-7fff mask=0xe000 + bsmemory + map address=20-3f,a0-bf:8000-ffff + map address=60-7d,e0-ff:0000-ffff + +board: BS-LOROM-NVRAM + rom + map address=00-1f:8000-ffff base=0x000000 mask=0x8000 + map address=20-3f:8000-ffff base=0x100000 mask=0x8000 + map address=80-9f:8000-ffff base=0x200000 mask=0x8000 + map address=a0-bf:8000-ffff base=0x100000 mask=0x8000 + ram + map address=70-7d,f0-ff:0000-7fff mask=0x8000 + bsmemory + map address=c0-ef:0000-ffff + +board: BS-NVRAM + ram + map address=10-1f:5000-5fff mask=0xf000 + mcc + map address=00-0f:5000 + map=mcu address=00-3f,80-bf:8000-ffff mask=0x408000 + map=mcu address=40-7d,c0-ff:0000-ffff + rom + ram + map address=00-3f,80-bf:6000-7fff mask=0xe000 + bsmemory + +board: BS-SA1-NVRAM + sa1 + map address=00-3f,80-bf:2200-23ff + rom + map address=00-3f,80-bf:8000-ffff mask=0x408000 + map address=c0-ff:0000-ffff + bwram + map address=00-3f,80-bf:6000-7fff size=0x2000 + map address=40-4f:0000-ffff + iram + map address=00-3f,80-bf:3000-37ff size=0x800 + bsmemory + map + +board: CX4-LOROM hitachidsp model=HG51B169 frequency=20000000 map address=00-3f,80-bf:6c00-6fff,7c00-7fff + map=ram address=70-77:0000-7fff mask=0x8000 rom map address=00-3f,80-bf:8000-ffff mask=0x8000 - ram - map address=70-77:0000-7fff mask=0x8000 drom dram map address=00-3f,80-bf:6000-6bff,7000-7bff mask=0xf000 +board: DSP-HIROM + rom + map address=00-3f,80-bf:8000-ffff + map address=40-7d,c0-ff:0000-ffff + necdsp model=uPD7725 frequency=8000000 + map address=00-1f,80-9f:6000-7fff mask=0xfff + prom + drom + dram + board: DSP-HIROM-NVRAM rom map address=00-3f,80-bf:8000-ffff @@ -469,6 +525,12 @@ board: EXHIROM-NVRAM map address=20-3f,a0-bf:6000-7fff mask=0xe000 map address=70-7d:0000-7fff +board: EXLOROM-NVRAM + rom + map address=00-7d,80-ff:8000-ffff mask=0x8000 + ram + map address=70-7d,f0-ff:0000-7fff mask=0x8000 + board: HIROM rom map address=00-3f,80-bf:8000-ffff @@ -483,13 +545,13 @@ board: HIROM-NVRAM board: LOROM rom - map address=00-7d,f0-ff:8000-ffff mask=0x8000 + map address=00-7d,80-ff:8000-ffff mask=0x8000 board: LOROM-NVRAM rom - map address=00-7d,f0-ff:8000-ffff mask=0x8000 + map address=00-6f,80-ef:8000-ffff mask=0x8000 ram - map address=70-7d,f0-ff:0000-7fff mask=0x8000 + map address=70-7d,f0-ff:0000-ffff mask=0x8000 board: OBC1-LOROM-NVRAM rom @@ -541,19 +603,7 @@ board: SDD1-NVRAM map address=00-3f,80-bf:6000-7fff mask=0xe000 map address=70-73:0000-ffff mask=0x8000 -board: SETA-LOROM-NVRAM - rom - map address=00-7d,80-ff:8000-ffff mask=0x8000 - map address=40-6f,c0-ef:0000-7fff mask=0x8000 - ram - map address=70-7d,f0-ff:0000-ffff - armdsp frequency=21477272 - map address=00-3f,80-bf:3800-38ff - prom - drom - ram - -board: SGB +board: SGB-LOROM rom map address=00-7d,80-ff:8000-ffff mask=0x8000 map address=40-7d,c0-ff:0000-7fff mask=0x8000 @@ -561,6 +611,17 @@ board: SGB map address=00-3f,80-bf:6000-67ff,7000-7fff rom +board: SPC7110-NVRAM + spc7110 + map address=00-3f,80-bf:4800-483f + map address=50,58:0000-ffff + map=mcu address=00-3f,80-bf:8000-ffff mask=0x800000 + map=mcu address=c0-ff:0000-ffff mask=0xc00000 + prom + drom + ram + map address=00-3f,80-bf:6000-7fff mask=0xe000 + board: SPC7110-RTC-NVRAM spc7110 map address=00-3f,80-bf:4800-483f @@ -575,7 +636,32 @@ board: SPC7110-RTC-NVRAM map address=00-3f,80-bf:4800-4842 ram -board: ST-LOROM-BATTERY +board: ST-LOROM + rom + map address=00-1f,80-9f:8000-ffff mask=0x8000 + sufamiturbo + rom + map address=20-3f,a0-bf:8000-ffff mask=0x8000 + ram + map address=60-6f,e0-ef:0000-ffff + sufamiturbo + rom + map address=40-5f,c0-df:0000-7fff mask=0x8000 + map address=40-5f,c0-df:8000-ffff mask=0x8000 + ram + map address=70-7d,f0-ff:0000-ffff + +board: ST010-LOROM-BATTERY + rom + map address=00-7d,80-ff:8000-ffff mask=0x8000 + necdsp model=uPD96050 frequency=11000000 + map address=60-67,e0-e7:0000-3fff + prom + drom + dram + map address=68-6f,e8-ef:0000-7fff mask=0x8000 + +board: ST011-LOROM-BATTERY rom map address=00-7d,80-ff:8000-ffff mask=0x8000 necdsp model=uPD96050 frequency=15000000 @@ -585,6 +671,18 @@ board: ST-LOROM-BATTERY dram map address=68-6f,e8-ef:0000-7fff mask=0x8000 +board: ST018-LOROM-NVRAM + rom + map address=00-7d,80-ff:8000-ffff mask=0x8000 + map address=40-6f,c0-ef:0000-7fff mask=0x8000 + ram + map address=70-7d,f0-ff:0000-ffff + armdsp frequency=21477272 + map address=00-3f,80-bf:3800-38ff + prom + drom + ram + board: SUPERFX-(RAM,NVRAM) superfx map address=00-3f,80-bf:3000-34ff diff --git a/icarus/core/bs-memory.cpp b/icarus/core/bs-memory.cpp index 9e54bb24..54a96549 100644 --- a/icarus/core/bs-memory.cpp +++ b/icarus/core/bs-memory.cpp @@ -5,30 +5,20 @@ auto Icarus::bsMemoryManifest(string location) -> string { } auto Icarus::bsMemoryManifest(vector& buffer, string location) -> string { - string markup; - string digest = Hash::SHA256(buffer.data(), buffer.size()).digest(); + string digest = Hash::SHA256(buffer).digest(); - if(settings["icarus/UseDatabase"].boolean() && !markup) { - for(auto node : database.bsMemory) { - if(node["sha256"].text() == digest) { - markup.append(node.text(), "\n sha256: ", digest, "\n"); - break; - } + if(settings["icarus/UseDatabase"].boolean()) { + for(auto game : database.bsMemory.find("game")) { + if(game["sha256"].text() == digest) return BML::serialize(game); } } - if(settings["icarus/UseHeuristics"].boolean() && !markup) { - BSMemoryCartridge cartridge{buffer.data(), buffer.size()}; - if(markup = cartridge.markup) { - markup.append("\n"); - markup.append("information\n"); - markup.append(" title: ", Location::prefix(location), "\n"); - markup.append(" sha256: ", digest, "\n"); - markup.append(" note: ", "heuristically generated by icarus\n"); - } + if(settings["icarus/UseHeuristics"].boolean()) { + Heuristics::BSMemory game{buffer.data(), buffer.size()}; + if(string manifest = game.manifest()) return manifest; } - return markup; + return ""; } auto Icarus::bsMemoryImport(vector& buffer, string location) -> string { diff --git a/icarus/core/sufami-turbo.cpp b/icarus/core/sufami-turbo.cpp index 5b0eea16..60bd41e7 100644 --- a/icarus/core/sufami-turbo.cpp +++ b/icarus/core/sufami-turbo.cpp @@ -5,30 +5,20 @@ auto Icarus::sufamiTurboManifest(string location) -> string { } auto Icarus::sufamiTurboManifest(vector& buffer, string location) -> string { - string markup; - string digest = Hash::SHA256(buffer.data(), buffer.size()).digest(); + string digest = Hash::SHA256(buffer).digest(); - if(settings["icarus/UseDatabase"].boolean() && !markup) { - for(auto node : database.sufamiTurbo) { - if(node["sha256"].text() == digest) { - markup.append(node.text(), "\n sha256: ", digest, "\n"); - break; - } + if(settings["icarus/UseDatabase"].boolean()) { + for(auto game : database.sufamiTurbo.find("game")) { + if(game["sha256"].text() == digest) return BML::serialize(game); } } - if(settings["icarus/UseHeuristics"].boolean() && !markup) { - SufamiTurboCartridge cartridge{buffer.data(), buffer.size()}; - if(markup = cartridge.markup) { - markup.append("\n"); - markup.append("information\n"); - markup.append(" title: ", Location::prefix(location), "\n"); - markup.append(" sha256: ", digest, "\n"); - markup.append(" note: ", "heuristically generated by icarus\n"); - } + if(settings["icarus/UseHeuristics"].boolean()) { + Heuristics::SufamiTurbo game{buffer.data(), buffer.size()}; + if(string manifest = game.manifest()) return manifest; } - return markup; + return ""; } auto Icarus::sufamiTurboImport(vector& buffer, string location) -> string { diff --git a/icarus/core/super-famicom.cpp b/icarus/core/super-famicom.cpp index 251c7b37..50dceb21 100644 --- a/icarus/core/super-famicom.cpp +++ b/icarus/core/super-famicom.cpp @@ -15,24 +15,14 @@ auto Icarus::superFamicomManifest(vector& buffer, string location) -> s if(settings["icarus/UseDatabase"].boolean()) { for(auto game : database.superFamicom.find("game")) { - if(game["sha256"].text() == digest) { - return BML::serialize(game); - } + if(game["sha256"].text() == digest) return BML::serialize(game); } } if(settings["icarus/UseHeuristics"].boolean()) { bool hasMSU1 = exists({location, "msu1.rom"}); Heuristics::SuperFamicom game{buffer.data(), buffer.size(), hasMSU1}; - if(string manifest = game.manifest()) { -// markup.append("\n"); -// markup.append("game\n"); -// markup.append(" sha256: ", digest, "\n"); -// markup.append(" region: ", cartridge.region == SuperFamicomCartridge::Region::NTSC ? "NTSC" : "PAL", "\n"); -// markup.append(" label: ", Location::prefix(location), "\n"); -// markup.append(" note: ", "heuristically generated by icarus\n"); - return manifest; - } + if(string manifest = game.manifest()) return manifest; } return ""; diff --git a/icarus/heuristics/bs-memory.cpp b/icarus/heuristics/bs-memory.cpp index 4f9f7975..86118f84 100644 --- a/icarus/heuristics/bs-memory.cpp +++ b/icarus/heuristics/bs-memory.cpp @@ -1,10 +1,34 @@ -struct BSMemoryCartridge { - BSMemoryCartridge(const uint8_t* data, uint size); +namespace Heuristics { - string markup; +struct BSMemory { + BSMemory(const uint8_t* data, uint size); + explicit operator bool() const; + + auto manifest() const -> string; + +private: + const uint8_t* data = nullptr; + uint size = 0; }; -BSMemoryCartridge::BSMemoryCartridge(const uint8_t* data, uint size) { - markup.append("board\n"); - markup.append(" rom type=flash name=program.rom size=0x", hex(size), "\n"); +BSMemory::BSMemory(const uint8_t* data, uint size) : data(data), size(size) { +} + +BSMemory::operator bool() const { + return size == 0x100000; +} + +auto BSMemory::manifest() const -> string { + if(!operator bool()) return ""; + + string output; + output.append("game\n"); + output.append(" sha256: ", Hash::SHA256(data, size).digest(), "\n"); + output.append(" memory\n"); + output.append(" type: NAND\n"); + output.append(" size: 0x", hex(size), "\n"); + output.append(" name: program.rom\n"); + return output; +} + } diff --git a/icarus/heuristics/sufami-turbo.cpp b/icarus/heuristics/sufami-turbo.cpp index 17e7ff40..6f11ec23 100644 --- a/icarus/heuristics/sufami-turbo.cpp +++ b/icarus/heuristics/sufami-turbo.cpp @@ -1,18 +1,48 @@ -struct SufamiTurboCartridge { - SufamiTurboCartridge(const uint8_t* data, unsigned size); +namespace Heuristics { - string markup; +struct SufamiTurbo { + SufamiTurbo(const uint8_t* data, uint size); + explicit operator bool() const; + + auto manifest() const -> string; + +private: + const uint8_t* data = nullptr; + uint size = 0; }; -SufamiTurboCartridge::SufamiTurboCartridge(const uint8_t* data, unsigned size) { - if(size < 0x20000) return; //too small to be a valid game? - if(memcmp(data, "BANDAI SFC-ADX", 14)) return; //missing required header? - unsigned romsize = data[0x36] * 0x20000; //128KB - unsigned ramsize = data[0x37] * 0x800; //2KB - bool linkable = data[0x35] != 0x00; //TODO: unconfirmed - - markup.append("board", linkable ? " linkable" : "", "\n"); - markup.append(" rom name=program.rom size=0x", hex(romsize), "\n"); - if(ramsize) - markup.append(" ram name=save.ram size=0x", hex(ramsize), "\n"); +SufamiTurbo::SufamiTurbo(const uint8_t* data, uint size) : data(data), size(size) { +} + +SufamiTurbo::operator bool() const { + return size >= 0x20000; +} + +auto SufamiTurbo::manifest() const -> string { + if(!operator bool()) return ""; + + uint romSize = data[0x36] * 0x20000; //128KB + uint ramSize = data[0x37] * 0x800; //2KB + bool linkable = data[0x35]; //TODO: unconfirmed + + string output; + output.append("game\n"); + if(linkable) { + output.append(" linkable\n"); + } + if(romSize) { + output.append(" memory\n"); + output.append(" type: ROM\n"); + output.append(" size: 0x", hex(romSize), "\n"); + output.append(" name: program.rom\n"); + } + if(ramSize) { + output.append(" memory\n"); + output.append(" type: NVRAM\n"); + output.append(" size: 0x", hex(ramSize), "\n"); + output.append(" name: save.ram\n"); + } + return output; +} + } diff --git a/icarus/heuristics/super-famicom.cpp b/icarus/heuristics/super-famicom.cpp index 90d73dd4..6ed9b830 100644 --- a/icarus/heuristics/super-famicom.cpp +++ b/icarus/heuristics/super-famicom.cpp @@ -12,6 +12,7 @@ struct SuperFamicom { auto board() const -> string; auto label() const -> string; auto serial() const -> string; + auto romSize() const -> uint; auto ramSize() const -> uint; auto expansionRamSize() const -> uint; @@ -62,20 +63,20 @@ auto SuperFamicom::manifest() const -> string { output.append(memory("ROM", size - 0x2000, "program.rom")); output.append(memory("ROM", 0x1800, "dsp.program.rom")); output.append(memory("ROM", 0x800, "dsp.data.rom")); - } else if(board.left() == "SETA") { - output.append(memory("ROM", size - 0x28000, "program.rom")); - output.append(memory("ROM", 0x20000, "seta.program.rom")); - output.append(memory("ROM", 0x8000, "seta.data.rom")); } else if(board.left() == "SGB") { output.append(memory("ROM", size - 0x100, "program.rom")); output.append(memory("ROM", 0x100, "sgb.boot.rom")); } else if(board.left() == "SPC7110") { output.append(memory("ROM", 0x100000, "program.rom")); output.append(memory("ROM", size - 0x100000, "data.rom")); - } else if(board.left() == "ST") { + } else if(board.left() == "ST010" || board.left() == "ST011") { output.append(memory("ROM", size - 0xd000, "program.rom")); output.append(memory("ROM", 0xc000, "st.program.rom")); output.append(memory("ROM", 0x1000, "st.data.rom")); + } else if(board.left() == "ST018") { + output.append(memory("ROM", size - 0x28000, "program.rom")); + output.append(memory("ROM", 0x20000, "seta.program.rom")); + output.append(memory("ROM", 0x8000, "seta.data.rom")); } else { output.append(memory("ROM", size, "program.rom")); } @@ -90,10 +91,9 @@ auto SuperFamicom::manifest() const -> string { output.append(memory(type, size, "expansion.ram")); } - if(board.left() == "BSX") { + if(board.left() == "BS" && board(1) == "NVRAM") { output.append(memory("NVRAM", 0x80000, "download.ram")); } else if(board.left() == "CX4") { - output.append(memory("RAM", 0, "save.ram")); output.append(memory("RAM", 0xc00, "cx4.data.ram")); } else if(board.left() == "DSP") { output.append(memory("RAM", 0x200, "dsp.data.ram")); @@ -101,12 +101,12 @@ auto SuperFamicom::manifest() const -> string { output.append(memory("NVRAM", 0x10, "rtc.ram")); } else if(board.left() == "SA1") { output.append(memory("RAM", 0x800, "internal.ram")); - } else if(board.left() == "SETA") { - output.append(memory("NVRAM", 0x4000, "seta.save.ram")); } else if(board.left() == "SPC7110" && board(1) == "RTC") { output.append(memory("NVRAM", 0x10, "rtc.ram")); - } else if(board.left() == "ST") { + } else if(board.left() == "ST010" || board.left() == "ST011") { output.append(memory("NVRAM", 0x1000, "st.save.ram")); + } else if(board.left() == "ST018") { + output.append(memory("NVRAM", 0x4000, "seta.save.ram")); } if(hasMSU1) { @@ -250,8 +250,12 @@ auto SuperFamicom::board() const -> string { if(headerAddress == 0x40ffb0) mode = "EXHIROM-"; } - if(serial() == "A9PJ") { - board.append("ST-"); + if(serial() == "A9PJ") { + //Sufami Turbo (JPN) + board.append("ST-", mode); + } else if(serial() == "ZSBJ") { + //BS-X: Sore wa Namae o Nusumareta Machi no Monogatari (JPN) + board.append("BS-"); } else if(serial().match("Z\?\?J")) { board.append("BS-", mode); } else if(cartridgeTypeLo >= 0x3) { @@ -262,15 +266,16 @@ auto SuperFamicom::board() const -> string { if(cartridgeTypeHi == 0x4) board.append("SDD1-"); if(cartridgeTypeHi == 0x5) board.append("RTC-", mode); if(cartridgeTypeHi == 0xe && cartridgeTypeLo == 0x3) board.append("SGB-"); - if(cartridgeTypeHi == 0xe && cartridgeTypeLo == 0x5) board.append("BSX-"); if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x00 && cartridgeTypeLo == 0x5) board.append("SPC7110-"); if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x00 && cartridgeTypeLo == 0x9) board.append("SPC7110-RTC-"); - if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x01) board.append("ST-"); - if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x02) board.append("SETA-"); - if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x10) board.append("CX4-"); - } else { - board.append(mode); + if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x01) board.append(romSize() == 0x100000 ? "ST010-" : "ST011-"); + if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x02) board.append("ST018-", mode); + if(cartridgeTypeHi == 0xf && cartridgeSubType == 0x10) board.append("CX4-", mode); } + if(!board) board.append(mode); + + //grow ROM region and restrict RAM region for large LOROM boards ("EXLOROM") + if(board.beginsWith("LOROM-") && romSize() > 0x380000 && ramSize()) board.prepend("EX"); if(cartridgeTypeLo == 0x1 || cartridgeTypeLo == 0x4) board.append("RAM-"); if(cartridgeTypeLo == 0x2 || cartridgeTypeLo == 0x5) board.append("NVRAM-"); @@ -304,6 +309,19 @@ auto SuperFamicom::serial() const -> string { return ""; } +auto SuperFamicom::romSize() const -> uint { + //subtract appended firmware size, if firmware is present + if((size & 0x7fff) == 0x100) return size - 0x100; + if((size & 0x7fff) == 0xc00) return size - 0xc00; + if((size & 0x7fff) == 0x2000) return size - 0x2000; + if((size & 0xffff) == 0xd000) return size - 0xd000; + if((size & 0x3ffff) == 0x28000) return size - 0x28000; + return size; + +//auto romSize = data[headerAddress + 0x27] & 15; +//return 1024 << romSize; +} + auto SuperFamicom::ramSize() const -> uint { auto ramSize = data[headerAddress + 0x28] & 7; if(ramSize) return 1024 << ramSize; diff --git a/icarus/heuristics/super-famicom.old.cpp b/icarus/heuristics/super-famicom.old.cpp deleted file mode 100644 index 2366e8c0..00000000 --- a/icarus/heuristics/super-famicom.old.cpp +++ /dev/null @@ -1,856 +0,0 @@ -struct SuperFamicomCartridge { - SuperFamicomCartridge(const uint8_t* data, uint size, bool has_msu1 = false); - - string markup; - -//private: - auto readHeader(const uint8_t* data, uint size) -> void; - auto findHeader(const uint8_t* data, uint size) -> uint; - auto scoreHeader(const uint8_t* data, uint size, uint addr) -> uint; - - enum HeaderField : uint { - CartName = 0x00, - Mapper = 0x15, - RomType = 0x16, - RomSize = 0x17, - RamSize = 0x18, - CartRegion = 0x19, - Company = 0x1a, - Version = 0x1b, - Complement = 0x1c, //inverse checksum - Checksum = 0x1e, - ResetVector = 0x3c, - }; - - enum class Type : uint { - SatellaviewBIOS, - SufamiTurboBIOS, - SuperGameBoy1BIOS, - SuperGameBoy2BIOS, - LoROM, - HiROM, - ExLoROM, - ExHiROM, - SuperFX, - SA1, - LoROMSatellaview, - HiROMSatellaview, - CampusChallenge92, - Powerfest94, - - //invalid types - Unknown, - GameBoy, - Satellaview, - SufamiTurbo, - }; - - enum class Region : uint { - NTSC, - PAL, - }; - - enum class DSP1Type : uint { - None, - LoROM1MB, - LoROM2MB, - HiROM, - }; - - bool loaded = false; //is a base cartridge inserted? - uint crc32 = 0; //crc32 of all cartridges (base+slot(s)) - uint rom_size = 0; - uint ram_size = 0; - uint firmware_size = 0; - string firmware_missing; - - Type type = Type::Unknown; - Region region = Region::NTSC; - DSP1Type dsp1_type = DSP1Type::None; - - bool has_bsx_slot = false; - bool has_superfx = false; - bool has_sa1 = false; - bool has_sharprtc = false; - bool has_epsonrtc = false; - bool has_sdd1 = false; - bool has_spc7110 = false; - bool has_cx4 = false; - bool has_dsp1 = false; - bool has_dsp2 = false; - bool has_dsp3 = false; - bool has_dsp4 = false; - bool has_obc1 = false; - bool has_st010 = false; - bool has_st011 = false; - bool has_st018 = false; -}; - -SuperFamicomCartridge::SuperFamicomCartridge(const uint8_t* data, uint size, bool has_msu1) { - //skip copier header - if((size & 0x7fff) == 512) data += 512, size -= 512; - - //ignore images too small to be valid - if(size < 0x8000) return; - - readHeader(data, size); - - if(type == Type::Unknown) return; - if(type == Type::GameBoy) return; - if(type == Type::Satellaview) return; - if(type == Type::SufamiTurbo) return; - - const char* range = (rom_size > 0x200000) || (ram_size > 32 * 1024) ? "0000-7fff" : "0000-ffff"; - markup.append("board region=", region == Region::NTSC ? "ntsc" : "pal", "\n"); - - //detect firmware - - if(has_dsp1) { - if((size & 0x7fff) == 0x2000) { - firmware_size = 0x2000; - } else { - firmware_missing = "DSP1"; - } - } - - if(has_dsp2) { - if((size & 0x7fff) == 0x2000) { - firmware_size = 0x2000; - } else { - firmware_missing = "DSP2"; - } - } - - if(has_dsp3) { - if((size & 0x7fff) == 0x2000) { - firmware_size = 0x2000; - } else { - firmware_missing = "DSP3"; - } - } - - if(has_dsp4) { - if((size & 0x7fff) == 0x2000) { - firmware_size = 0x2000; - } else { - firmware_missing = "DSP4"; - } - } - - if(has_st010) { - if((size & 0xffff) == 0xd000) { - firmware_size = 0xd000; - } else { - firmware_missing = "ST010"; - } - } - - if(has_st011) { - if((size & 0xffff) == 0xd000) { - firmware_size = 0xd000; - } else { - firmware_missing = "ST011"; - } - } - - if(has_st018) { - if((size & 0x3ffff) == 0x28000) { - firmware_size = 0x28000; - } else { - firmware_missing = "ST018"; - } - } - - if(has_cx4) { - if((rom_size & 0x7fff) == 0xc00) { - firmware_size = 0xc00; - } else { - firmware_missing = "CX4"; - } - } - - if(type == Type::SuperGameBoy1BIOS) { - if((rom_size & 0x7fff) == 0x100) { - firmware_size = 0x100; - } else { - firmware_missing = "SGB1"; - } - } - - if(type == Type::SuperGameBoy2BIOS) { - if((rom_size & 0x7fff) == 0x100) { - firmware_size = 0x100; - } else { - firmware_missing = "SGB2"; - } - } - - rom_size -= firmware_size; - - //end firmware detection - - if(type == Type::SatellaviewBIOS) { - markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=10-1f:5000-5fff mask=0xf000\n" - " mcc\n" - " map address=00-0f:5000\n" - " map=mcu address=00-3f,80-bf:8000-ffff mask=0x408000\n" - " map=mcu address=40-7d,c0-ff:0000-ffff\n" - " rom name=program.rom size=0x", hex(rom_size), "\n" - " ram name=download.ram size=0x80000\n" - " map address=00-3f,80-bf:6000-7fff mask=0xe000\n" - " bsmemory\n" - ); - } - - else if(type == Type::SufamiTurboBIOS) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-1f,80-9f:8000-ffff mask=0x8000\n" - " sufamiturbo\n" - " rom\n" - " map address=20-3f,a0-bf:8000-ffff mask=0x8000\n" - " ram\n" - " map address=60-6f,e0-ef:0000-ffff\n" - " sufamiturbo\n" - " rom\n" - " map address=40-5f,c0-df:0000-7fff mask=0x8000\n" - " map address=40-5f,c0-df:8000-ffff mask=0x8000\n" - " ram\n" - " map address=70-7d,f0-ff:0000-ffff\n" - ); - } - - else if(type == Type::SuperGameBoy1BIOS) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-7d,80-ff:8000-ffff mask=0x8000\n" - " map address=40-7d,c0-ff:0000-7fff mask=0x8000\n" - " icd2 revision=1\n" - " map address=00-3f,80-bf:6000-67ff,7000-7fff\n" - " rom name=sgb1.boot.rom size=0x100\n" - ); - } - - else if(type == Type::SuperGameBoy2BIOS) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-7d,80-ff:8000-ffff mask=0x8000\n" - " map address=40-7d,c0-ff:0000-7fff mask=0x8000\n" - " icd2 revision=2\n" - " map address=00-3f,80-bf:6000-67ff,7000-7fff\n" - " rom name=sgb2.boot.rom size=0x100\n" - ); - } - - else if(has_cx4) { - markup.append( - " hitachidsp model=HG51B169 frequency=20000000\n" - " map address=00-3f,80-bf:6c00-6fff,7c00-7fff\n" - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff mask=0x8000\n" - " ram name=save.ram size=0\n" - " map address=70-77:0000-7fff mask=0x8000\n" - " drom name=cx4.data.rom size=0xc00\n" - " dram name=cx4.data.ram size=0xc00 volatile\n" - " map address=00-3f,80-bf:6000-6bff,7000-7bff mask=0xf000\n" - ); - } - - else if(has_spc7110) { - markup.append( - " spc7110\n" - " map address=00-3f,80-bf:4800-483f\n" - " map address=50,58:0000-ffff\n" - " map=mcu address=00-3f,80-bf:8000-ffff mask=0x800000\n" - " map=mcu address=c0-ff:0000-ffff mask=0xc00000\n" - " prom name=program.rom size=0x100000\n" - " drom name=data.rom size=0x", hex(rom_size - 0x100000), "\n" - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=00-3f,80-bf:6000-7fff mask=0xe000\n" - ); - } - - else if(has_sdd1) { - markup.append( - " sdd1\n" - " map address=00-3f,80-bf:4800-480f\n" - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff\n" - " map address=c0-ff:0000-ffff\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=00-3f,80-bf:6000-7fff mask=0xe000\n" - " map address=70-73:0000-ffff mask=0x8000\n" - ); - } - - else if(type == Type::LoROM) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-7d,80-ff:8000-ffff mask=0x8000\n" - " map address=40-6f,c0-ef:0000-7fff mask=0x8000\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=70-7d,f0-ff:", range, "\n" - ); - } - - else if(type == Type::HiROM) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff\n" - " map address=40-7f,c0-ff:0000-ffff\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=10-3f,90-bf:6000-7fff mask=0xe000\n" - ); - } - - else if(type == Type::ExLoROM) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff mask=0x8000\n" - " map address=40-7d:0000-ffff\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=20-3f,a0-bf:6000-7fff mask=0xe000\n" - " map address=70-7d:0000-7fff mask=0x8000\n" - ); - } - - else if(type == Type::ExHiROM) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f:8000-ffff base=0x400000\n" - " map address=40-7d:0000-ffff base=0x400000\n" - " map address=80-bf:8000-ffff mask=0xc00000\n" - " map address=c0-ff:0000-ffff mask=0xc00000\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=20-3f,a0-bf:6000-7fff mask=0xe000\n" - " map address=70-7d:", range, "\n" - ); - } - - else if(type == Type::SuperFX) { - markup.append( - " superfx\n" - " map address=00-3f,80-bf:3000-34ff\n" - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff mask=0x8000\n" - " map address=40-5f,c0-df:0000-ffff\n" - ); - if(ram_size > 0) markup.append( - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=00-3f,80-bf:6000-7fff size=0x2000\n" - " map address=70-71,f0-f1:0000-ffff\n" - ); - } - - else if(type == Type::SA1) { - markup.append( - " sa1\n" - " map address=00-3f,80-bf:2200-23ff\n" - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-3f,80-bf:8000-ffff mask=0x408000\n" - " map address=c0-ff:0000-ffff\n" - ); - if(ram_size > 0) markup.append( - " bwram name=save.ram size=0x", hex(ram_size), "\n" - " map address=00-3f,80-bf:6000-7fff size=0x2000\n" - " map address=40-4f:0000-ffff\n" - ); - markup.append( - " iram id=internal size=0x800 volatile\n" - " map address=00-3f,80-bf:3000-37ff size=0x800\n" - ); - } - - else if(type == Type::LoROMSatellaview) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-1f:8000-ffff base=0x000000 mask=0x8000\n" - " map address=20-3f:8000-ffff base=0x100000 mask=0x8000\n" - " map address=80-9f:8000-ffff base=0x200000 mask=0x8000\n" - " map address=a0-bf:8000-ffff base=0x100000 mask=0x8000\n" - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=70-7d,f0-ff:0000-7fff mask=0x8000\n" - " bsmemory\n" - " map address=c0-ef:0000-ffff\n" - ); - } - - else if(type == Type::HiROMSatellaview) { - markup.append( - " rom name=program.rom size=0x", hex(rom_size), "\n" - " map address=00-1f,80-9f:8000-ffff\n" - " map address=40-5f,c0-df:0000-ffff\n" - " ram name=save.ram size=0x", hex(ram_size), "\n" - " map address=20-3f,a0-bf:6000-7fff\n" - " bsmemory\n" - " map address=20-3f,a0-bf:8000-ffff\n" - " map address=60-7f,e0-ff:0000-ffff\n" - ); - } - - else if(type == Type::CampusChallenge92) { - markup.append( - " event=CC92 timer=360\n" - " map address=c0,e0:0000\n" - " map=mcu address=00-1f,80-9f:8000-ffff\n" - " rom name=program.rom size=0x40000\n" - " rom name=slot-1.rom size=0x80000\n" - " rom name=slot-2.rom size=0x80000\n" - " rom name=slot-3.rom size=0x80000\n" - " ram name=save.ram size=0x2000 volatile\n" - " map address=70-7d,f0-ff:0000-7fff mask=0x8000\n" - " necdsp model=uPD7725 frequency=8000000\n" - " map address=20-3f,a0-bf:8000-ffff mask=0x7fff\n" - " prom name=dsp1.program.rom size=0x1800\n" - " drom name=dsp1.data.rom size=0x800\n" - " dram name=dsp1.data.ram size=0x200 volatile\n" - ); - return; - } - - else if(type == Type::Powerfest94) { - markup.append( - " event=PF94 timer=360\n" - " map address=10,20:6000\n" - " map=mcu address=00-3f,80-bf:8000-ffff\n" - " map=mcu address=c0-ff:0000-ffff\n" - " rom name=program.rom size=0x40000\n" - " rom name=slot-1.rom size=0x80000\n" - " rom name=slot-2.rom size=0x80000\n" - " rom name=slot-3.rom size=0x100000\n" - " ram name=save.ram size=0x2000 volatile\n" - " map address=30-3f,b0-bf:6000-7fff mask=0xe000\n" - " necdsp model=uPD7725 frequency=8000000\n" - " map address=00-0f,80-8f:6000-7fff mask=0xfff\n" - " prom name=dsp1.program.rom size=0x1800\n" - " drom name=dsp1.data.rom size=0x800\n" - " dram name=dsp1.data.ram size=0x200 volatile\n" - ); - return; - } - - if(has_sharprtc) { - markup.append( - " sharprtc\n" - " map address=00-3f,80-bf:2800-2801\n" - " ram name=rtc.ram size=0x10\n" - ); - } - - if(has_epsonrtc) { - markup.append( - " epsonrtc\n" - " map address=00-3f,80-bf:4840-4842\n" - " ram name=rtc.ram size=0x10\n" - ); - } - - if(has_obc1) { - markup.append( - " obc1\n" - " map address=00-3f,80-bf:6000-7fff mask=0xe000\n" - " ram name=save.ram size=0x2000\n" - ); - } - - if(has_dsp1) { - markup.append( - " necdsp model=uPD7725 frequency=8000000\n" - ); - if(dsp1_type == DSP1Type::LoROM1MB) markup.append( - " map address=20-3f,a0-bf:8000-ffff mask=0x3fff\n" - ); - if(dsp1_type == DSP1Type::LoROM2MB) markup.append( - " map address=60-6f,e0-ef:0000-7fff mask=0x3fff\n" - ); - if(dsp1_type == DSP1Type::HiROM) markup.append( - " map address=00-1f,80-9f:6000-7fff mask=0xfff\n" - ); - markup.append( - " prom name=dsp1b.program.rom size=0x1800\n" - " drom name=dsp1b.data.rom size=0x800\n" - " dram name=dsp1b.data.ram size=0x200 volatile\n" - ); - } - - if(has_dsp2) { - markup.append( - " necdsp model=uPD7725 frequency=8000000\n" - " map address=20-3f,a0-bf:8000-ffff mask=0x3fff\n" - " prom name=dsp2.program.rom size=0x1800\n" - " drom name=dsp2.data.rom size=0x800\n" - " dram name=dsp2.data.ram size=0x200 volatile\n" - ); - } - - if(has_dsp3) { - markup.append( - " necdsp model=uPD7725 frequency=8000000\n" - " map address=20-3f,a0-bf:8000-ffff mask=0x3fff\n" - " prom name=dsp3.program.rom size=0x1800\n" - " drom name=dsp3.data.rom size=0x800\n" - " dram name=dsp3.data.ram size=0x200 volatile\n" - ); - } - - if(has_dsp4) { - markup.append( - " necdsp model=uPD7725 frequency=8000000\n" - " map address=30-3f,b0-bf:8000-ffff mask=0x3fff\n" - " prom name=dsp4.program.rom size=0x1800\n" - " drom name=dsp4.data.rom size=0x800\n" - " dram name=dsp4.data.ram size=0x200 volatile\n" - ); - } - - if(has_st010) { - markup.append( - " necdsp model=uPD96050 frequency=11000000\n" - " map address=60-67,e0-e7:0000-3fff\n" - " prom name=st010.program.rom size=0xc000\n" - " drom name=st010.data.rom size=0x1000\n" - " dram name=save.ram size=0x1000\n" - " map address=68-6f,e8-ef:0000-7fff mask=0x8000\n" - ); - } - - if(has_st011) { - markup.append( - " necdsp model=uPD96050 frequency=15000000\n" - " map address=60-67,e0-e7:0000-3fff\n" - " prom name=st011.program.rom size=0xc000\n" - " drom name=st011.data.rom size=0x1000\n" - " dram name=save.ram size=0x1000\n" - " map address=68-6f,e8-ef:0000-7fff mask=0x8000\n" - ); - } - - if(has_st018) { - markup.append( - " armdsp frequency=21477272\n" - " map address=00-3f,80-bf:3800-38ff\n" - " prom name=st018.program.rom size=0x20000\n" - " drom name=st018.data.rom size=0x8000\n" - " ram name=save.ram size=0x4000\n" - ); - } - - if(has_msu1) { - markup.append( - " msu1\n" - " map address=00-3f,80-bf:2000-2007\n" - " rom name=msu1.rom\n" - ); - } -} - -auto SuperFamicomCartridge::readHeader(const uint8_t* data, uint size) -> void { - //detect Game Boy carts - if(size >= 0x0140) { - if(data[0x0104] == 0xce && data[0x0105] == 0xed && data[0x0106] == 0x66 && data[0x0107] == 0x66 - && data[0x0108] == 0xcc && data[0x0109] == 0x0d && data[0x010a] == 0x00 && data[0x010b] == 0x0b) { - type = Type::GameBoy; - return; - } - } - - const uint index = findHeader(data, size); - const uint8_t mapperid = data[index + Mapper]; - const uint8_t rom_type = data[index + RomType]; - const uint8_t rom_size = data[index + RomSize]; - const uint8_t company = data[index + Company]; - const uint8_t regionid = data[index + CartRegion] & 0x7f; - - const uint16_t complement = data[index + Complement] | data[index + Complement + 1] << 8; - const uint16_t checksum = data[index + Checksum] | data[index + Checksum + 1] << 8; - - this->rom_size = size; - ram_size = 1024 << (data[index + RamSize] & 7); - if(ram_size == 1024) ram_size = 0; //no RAM present - if(rom_size == 0 && ram_size) ram_size = 0; //fix for Bazooka Blitzkrieg's malformed header (swapped ROM and RAM sizes) - - //0, 1, 13 = NTSC; 2 - 12 = PAL - region = (regionid <= 1 || regionid >= 13) ? Region::NTSC : Region::PAL; - - //detect BS-X flash carts - if(data[index + 0x13] == 0x00 || data[index + 0x13] == 0xff) { - if(data[index + 0x14] == 0x00) { - const uint8_t n15 = data[index + 0x15]; - if(n15 == 0x00 || n15 == 0x80 || n15 == 0x84 || n15 == 0x9c || n15 == 0xbc || n15 == 0xfc) { - if(data[index + 0x1a] == 0x33 || data[index + 0x1a] == 0xff) { - type = Type::Satellaview; - region = Region::NTSC; //BS-X only released in Japan - return; - } - } - } - } - - //detect Sufami Turbo carts - if(!memcmp(data, "BANDAI SFC-ADX", 14)) { - if(!memcmp(data + 16, "SFC-ADX BACKUP", 14)) { - type = Type::SufamiTurboBIOS; - } else { - type = Type::SufamiTurbo; - } - region = Region::NTSC; //Sufami Turbo only released in Japan - return; //RAM size handled outside this routine - } - - //detect Super Game Boy BIOS - if(!memcmp(data + index, "Super GAMEBOY2", 14)) { - type = Type::SuperGameBoy2BIOS; - return; - } - - if(!memcmp(data + index, "Super GAMEBOY", 13)) { - type = Type::SuperGameBoy1BIOS; - return; - } - - //detect competition carts - if(!memcmp(data + index, "\x00\x08\x22\x02\x1c\x00\x10\x00\x08\x65\x80\x84\x20\x00\x22\x25\x00\x83\x0c\x80\x10", 21) - && complement == 0x0100 && checksum == 0x2d02 && (size == 0x1c0000 || size == 0x1c2000)) { - type = Type::CampusChallenge92; //dark title screen version - return; - } - - if(!memcmp(data + index, "\xc9\x80\x80\x44\x15\x00\x62\x09\x29\xa0\x52\x70\x50\x12\x05\x35\x31\x63\xc0\x22\x01", 21) - && complement == 0x2011 && checksum == 0xf8c0 && (size == 0x240000 || size == 0x242000)) { - type = Type::Powerfest94; //10,000 points version - return; - } - - if(!memcmp(data + index, "PREHISTORIK MAN ", 21) - && complement == 0xffff && checksum == 0x0000 && (size == 0x240000 || size == 0x242000)) { - type = Type::Powerfest94; //1,000,000 points version - return; - } - - //detect presence of BS-X flash cartridge connector (reads extended header information) - if(data[index - 14] == 'Z') { - if(data[index - 11] == 'J') { - uint8_t n13 = data[index - 13]; - if((n13 >= 'A' && n13 <= 'Z') || (n13 >= '0' && n13 <= '9')) { - if(company == 0x33 || (data[index - 10] == 0x00 && data[index - 4] == 0x00)) { - has_bsx_slot = true; - } - } - } - } - - if(has_bsx_slot) { - if(!memcmp(data + index, "Satellaview BS-X ", 21)) { - //BS-X base cart - type = Type::SatellaviewBIOS; - region = Region::NTSC; //BS-X only released in Japan - return; //RAM size handled internally by load_cart_bsx() -> BSXCart class - } else { - type = (index == 0x7fc0 ? Type::LoROMSatellaview : Type::HiROMSatellaview); - region = Region::NTSC; //BS-X slotted cartridges only released in Japan - } - } else { - //standard cart - if(index == 0x7fc0 && size >= 0x401000) { - type = Type::ExLoROM; - } else if(index == 0x7fc0 && mapperid == 0x32) { - type = Type::ExLoROM; - } else if(index == 0x7fc0) { - type = Type::LoROM; - } else if(index == 0xffc0) { - type = Type::HiROM; - } else if(index == 0x40ffc0) { - type = Type::ExHiROM; - } else { - type = Type::Unknown; - return; - } - } - - if(mapperid == 0x20 && (rom_type == 0x13 || rom_type == 0x14 || rom_type == 0x15 || rom_type == 0x1a)) { - has_superfx = true; - type = Type::SuperFX; - ram_size = 1024 << (data[index - 3] & 7); - if(ram_size == 1024) ram_size = 0; - } - - if(mapperid == 0x23 && (rom_type == 0x32 || rom_type == 0x34 || rom_type == 0x35)) { - has_sa1 = true; - type = Type::SA1; - } - - if(mapperid == 0x35 && rom_type == 0x55) { - has_sharprtc = true; - } - - if(mapperid == 0x32 && (rom_type == 0x43 || rom_type == 0x45)) { - has_sdd1 = true; - } - - if(mapperid == 0x3a && (rom_type == 0xf5 || rom_type == 0xf9)) { - has_spc7110 = true; - has_epsonrtc = (rom_type == 0xf9); - } - - if(mapperid == 0x20 && rom_type == 0xf3) { - has_cx4 = true; - } - - if((mapperid == 0x20 || mapperid == 0x21) && rom_type == 0x03) { - has_dsp1 = true; - } - - if(mapperid == 0x30 && rom_type == 0x05 && company != 0xb2) { - has_dsp1 = true; - } - - if(mapperid == 0x31 && (rom_type == 0x03 || rom_type == 0x05)) { - has_dsp1 = true; - } - - if(has_dsp1 == true) { - if((mapperid & 0x2f) == 0x20 && size <= 0x100000) { - dsp1_type = DSP1Type::LoROM1MB; - } else if((mapperid & 0x2f) == 0x20) { - dsp1_type = DSP1Type::LoROM2MB; - } else if((mapperid & 0x2f) == 0x21) { - dsp1_type = DSP1Type::HiROM; - } - } - - if(mapperid == 0x20 && rom_type == 0x05) { - has_dsp2 = true; - } - - if(mapperid == 0x30 && rom_type == 0x05 && company == 0xb2) { - has_dsp3 = true; - } - - if(mapperid == 0x30 && rom_type == 0x03) { - has_dsp4 = true; - } - - if(mapperid == 0x30 && rom_type == 0x25) { - has_obc1 = true; - } - - if(mapperid == 0x30 && rom_type == 0xf6 && rom_size >= 10) { - has_st010 = true; - } - - if(mapperid == 0x30 && rom_type == 0xf6 && rom_size < 10) { - has_st011 = true; - } - - if(mapperid == 0x30 && rom_type == 0xf5) { - has_st018 = true; - } -} - -auto SuperFamicomCartridge::findHeader(const uint8_t* data, uint size) -> uint { - uint score_lo = scoreHeader(data, size, 0x007fc0); - uint score_hi = scoreHeader(data, size, 0x00ffc0); - uint score_ex = scoreHeader(data, size, 0x40ffc0); - if(score_ex) score_ex += 4; //favor ExHiROM on images > 32mbits - - if(score_lo >= score_hi && score_lo >= score_ex) { - return 0x007fc0; - } else if(score_hi >= score_ex) { - return 0x00ffc0; - } else { - return 0x40ffc0; - } -} - -auto SuperFamicomCartridge::scoreHeader(const uint8_t* data, uint size, uint addr) -> uint { - if(size < addr + 64) return 0; //image too small to contain header at this location? - int score = 0; - - uint16_t resetvector = data[addr + ResetVector] | (data[addr + ResetVector + 1] << 8); - uint16_t checksum = data[addr + Checksum ] | (data[addr + Checksum + 1] << 8); - uint16_t complement = data[addr + Complement ] | (data[addr + Complement + 1] << 8); - - uint8_t resetop = data[(addr & ~0x7fff) | (resetvector & 0x7fff)]; //first opcode executed upon reset - uint8_t mapper = data[addr + Mapper] & ~0x10; //mask off irrelevent FastROM-capable bit - - //$00:[000-7fff] contains uninitialized RAM and MMIO. - //reset vector must point to ROM at $00:[8000-ffff] to be considered valid. - if(resetvector < 0x8000) return 0; - - //some images duplicate the header in multiple locations, and others have completely - //invalid header information that cannot be relied upon. - //below code will analyze the first opcode executed at the specified reset vector to - //determine the probability that this is the correct header. - - //most likely opcodes - if(resetop == 0x78 //sei - || resetop == 0x18 //clc (clc; xce) - || resetop == 0x38 //sec (sec; xce) - || resetop == 0x9c //stz $nnnn (stz $4200) - || resetop == 0x4c //jmp $nnnn - || resetop == 0x5c //jml $nnnnnn - ) score += 8; - - //plausible opcodes - if(resetop == 0xc2 //rep #$nn - || resetop == 0xe2 //sep #$nn - || resetop == 0xad //lda $nnnn - || resetop == 0xae //ldx $nnnn - || resetop == 0xac //ldy $nnnn - || resetop == 0xaf //lda $nnnnnn - || resetop == 0xa9 //lda #$nn - || resetop == 0xa2 //ldx #$nn - || resetop == 0xa0 //ldy #$nn - || resetop == 0x20 //jsr $nnnn - || resetop == 0x22 //jsl $nnnnnn - ) score += 4; - - //implausible opcodes - if(resetop == 0x40 //rti - || resetop == 0x60 //rts - || resetop == 0x6b //rtl - || resetop == 0xcd //cmp $nnnn - || resetop == 0xec //cpx $nnnn - || resetop == 0xcc //cpy $nnnn - ) score -= 4; - - //least likely opcodes - if(resetop == 0x00 //brk #$nn - || resetop == 0x02 //cop #$nn - || resetop == 0xdb //stp - || resetop == 0x42 //wdm - || resetop == 0xff //sbc $nnnnnn,x - ) score -= 8; - - //at times, both the header and reset vector's first opcode will match ... - //fallback and rely on info validity in these cases to determine more likely header. - - //a valid checksum is the biggest indicator of a valid header. - if((checksum + complement) == 0xffff && (checksum != 0) && (complement != 0)) score += 4; - - if(addr == 0x007fc0 && mapper == 0x20) score += 2; //0x20 is usually LoROM - if(addr == 0x00ffc0 && mapper == 0x21) score += 2; //0x21 is usually HiROM - if(addr == 0x007fc0 && mapper == 0x22) score += 2; //0x22 is usually ExLoROM - if(addr == 0x40ffc0 && mapper == 0x25) score += 2; //0x25 is usually ExHiROM - - if(data[addr + Company] == 0x33) score += 2; //0x33 indicates extended header - if(data[addr + RomType] < 0x08) score++; - if(data[addr + RomSize] < 0x10) score++; - if(data[addr + RamSize] < 0x08) score++; - if(data[addr + CartRegion] < 14) score++; - - if(score < 0) score = 0; - return score; -}