Rémi Bernon (@rbernon) commented about dlls/ntdll/unix/signal_x86_64.c:
"1:\txsave64 0xc0(%rcx)\n\t" "jmp 3f\n" "2:\tfxsave64 0xc0(%rcx)\n"
// remember state when $rcx is pointing to "frame"
We still don't use C++-style comments :), please use `/* ... */`. Ditto below.