x86_64 assembler
See documentation
```rust use x64_asm;
fn main() -> Result<(), Box>{ // you can pass a file(or string). let elfbuilder = x64asm::assemblefile("asm.s", "obj.o", x64asm::Syntax::ATANDT)?;
elf_builder.generate_elf_file(0o644); Ok(())
} ```
cargo test