Shader_Dumper.cpp

bool IsSchedInstruction(u32 offset, u32 main_offset) {
    // sched instructions appear once every 4 instructions.
    static constexpr size_t SchedPeriod = 4;
    u32 absolute_offset = offset - main_offset;

    return (absolute_offset % SchedPeriod) == 0;
}

void ShaderDumper::dump() {
    FileUtil::IOFile sFile;
    std::string name = prefix + hashName();
    sFile.Open(name, "w");
    u32 start_offset = 10;
    u32 offset = start_offset;
    u64 size = 0;
    while (true) { // dump until hitting not finding a valid instruction
        if (IsSchedInstruction(offset, start_offset)) {
            offset += 1;
        }
        u64 inst = program[offset];
        const Tegra::Shader::Instruction instr = {inst};
        const auto opcode = Tegra::Shader::OpCode::Decode(instr);
        if (!opcode) {
            break;
        }
        sFile.WriteArray<u64>(&inst, 1);
        size += 8;
        offset += 1;
    }
    u32 fill = 0;
    // Align to 32 bytes for nvdisasm
    while ((size % 0x20) != 0) {
        sFile.WriteArray<u32>(&fill, 1);
        size += 4;
    }
    sFile.Close();
}