read(fd int, buffer *byte, length int) -> int { return syscall(63, fd, buffer, length) } write(fd int, buffer *byte, length int) -> int { return syscall(64, fd, buffer, length) } mmap(address int, length uint, protection int, flags int) -> *any { return syscall(222, address, length, protection, flags) } munmap(address *any, length uint) -> int { return syscall(215, address, length) }