Conditional jump or move depends on uninitialised value(s)
   at 0x........: main (xor-undef-x86.c:17)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: main (xor-undef-x86.c:38)

Conditional jump or move depends on uninitialised value(s)
   at 0x........: main (xor-undef-x86.c:67)