#include <stdio.h>
 
int main(int argc, char** argv)
{
        printf ("Hello, world.\n");
        return 0;
}

/*
ERRORS when I do: gcc hello.c

/tmp/djd8Dd9s.s: Assembler messages:
/tmp/djd8Dd9s.s:11: Error: bad register name `%rbp'
/tmp/djd8Dd9s.s:13: Error: bad register name `%rsp'
/tmp/djd8Dd9s.s:16: Error: bad register name `%rsp'
/tmp/djd8Dd9s.s:17: Error: bad register name `%rbp)'
/tmp/djd8Dd9s.s:18: Error: bad register name `%rsi'
*/

Hello, world.