ref: 03bb5105883c997471a3d6b37600eb2ad4ae1a6f
dir: /test/asm/reference-undefined-equs.err/
ERROR: reference-undefined-equs.asm(4):
's1' already referenced at reference-undefined-equs.asm(2)
ERROR: reference-undefined-equs.asm(5):
's2' already referenced at reference-undefined-equs.asm(2)
error: Assembly aborted (2 errors)!