error: interpolation.asm(18):
    Interpolated symbol "undef" does not exist
error: interpolation.asm(22):
    Interpolated symbol "label" does not exist
error: interpolation.asm(29):
    Interpolated symbol "foo" is not a numeric or string symbol
error: interpolation.asm(32):
    Interpolated symbol "xor" is a reserved keyword; add a '#' prefix to use it as a raw symbol
Assembly aborted with 4 errors!