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[Kernel] Make File::GetSize panic

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wheremyfoodat 2023-01-14 02:40:24 +02:00
parent deaf7d518c
commit c16bf5c8aa
3 changed files with 22 additions and 1 deletions
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1
include/kernel/kernel.hpp
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@ -120,6 +120,7 @@ private:
void handleFileOperation(u32 messagePointer, Handle file);
void closeFile(u32 messagePointer, Handle file);
void readFile(u32 messagePointer, Handle file);
void getFileSize(u32 messagePointer, Handle file);
public:
Kernel(CPU& cpu, Memory& mem, GPU& gpu);

20
src/core/kernel/file_operations.cpp
View file

@ -3,6 +3,7 @@
namespace FileOps {
enum : u32 {
Read = 0x080200C2,
GetSize = 0x08040000,
Close = 0x08080000
};
}
@ -18,6 +19,7 @@ void Kernel::handleFileOperation(u32 messagePointer, Handle file) {
const u32 cmd = mem.read32(messagePointer);
switch (cmd) {
case FileOps::Close: closeFile(messagePointer, file); break;
case FileOps::GetSize: getFileSize(messagePointer, file); break;
case FileOps::Read: readFile(messagePointer, file); break;
default: Helpers::panic("Unknown file operation: %08X", cmd);
}
@ -62,4 +64,22 @@ void Kernel::readFile(u32 messagePointer, Handle fileHandle) {
mem.write32(messagePointer + 4, Result::Success);
mem.write32(messagePointer + 8, bytesRead.value());
}
}
void Kernel::getFileSize(u32 messagePointer, Handle fileHandle) {
logFileIO("Getting size of file %X\n", fileHandle);
const auto p = getObject(fileHandle, KernelObjectType::File);
if (p == nullptr) [[unlikely]] {
Helpers::panic("Called GetFileSize on non-existent file");
}
FileSession* file = p->getData<FileSession>();
if (!file->isOpen) {
Helpers::panic("Tried to get size of closed file");
}
mem.write32(messagePointer + 4, Result::Success);
mem.write64(messagePointer + 8, 0); // Size here
Helpers::panic("TODO: Implement FileOp::GetSize");
}

2
src/main.cpp
View file

@ -9,7 +9,7 @@ int main (int argc, char *argv[]) {
emu.initGraphicsContext();
auto romPath = std::filesystem::current_path() / (argc > 1 ? argv[1] : "OoT.3ds");
auto romPath = std::filesystem::current_path() / (argc > 1 ? argv[1] : "Pokemon Mystery Dungeon - Gates to Infinity (USA).3ds");
if (!emu.loadROM(romPath)) {
// For some reason just .c_str() doesn't show the proper path
Helpers::panic("Failed to load ROM file: %s", romPath.string().c_str());