error 0
 ==19284== Memcheck, a memory error detector
 ==19284== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
 ==19284== Using Valgrind-3.15.0.GIT and LibVEX; rerun with -h for copyright info
 ==19284== Command: ./try
 ==19284==
 ==19284==
 ==19284== Process terminating with default action of signal 11 (SIGSEGV)
 ==19284==  General Protection Fault
 ==19284==    at 0x401FD4: ??? (chacha.s:98)
 ==19284==
 ==19284== HEAP SUMMARY:
 ==19284==     in use at exit: 43,520 bytes in 10 blocks
 ==19284==   total heap usage: 15 allocs, 5 frees, 53,368 bytes allocated
 ==19284==
 ==19284== LEAK SUMMARY:
 ==19284==    definitely lost: 0 bytes in 0 blocks
 ==19284==    indirectly lost: 0 bytes in 0 blocks
 ==19284==      possibly lost: 43,520 bytes in 10 blocks
 ==19284==    still reachable: 0 bytes in 0 blocks
 ==19284==         suppressed: 0 bytes in 0 blocks
 ==19284== Rerun with --leak-check=full to see details of leaked memory
 ==19284==
 ==19284== For lists of detected and suppressed errors, rerun with: -s
 ==19284== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)