error: Macro argument '\1' not defined
    at skip-expansions.asm::mac2(21) <- skip-expansions.asm(31)
error: syntax error, unexpected (
    at skip-expansions.asm::mac2(21) <- skip-expansions.asm(31)
error: Macro argument '\2' not defined
    at skip-expansions.asm::mac2(21) <- skip-expansions.asm(31)
Assembly aborted with 3 errors!