wcx64 is a simplistic wc clone in x64 assembly. Usage:
$ wcx64 /tmp/1 /tmp/2 /usr/share/dict/words
0 1 2 /tmp/1
2 5 23 /tmp/2
99171 99171 938848 /usr/share/dict/words
99173 99177 938873 total
When not given any command-line arguments, reads from stdin:
$ wcx64 < /tmp/2
2 5 23
Always prints the all three counters: line, word, byte.