A method for storing memory test information includes the steps of storing
a portion of information related to locations and numbers of failed
memory cells detected while testing memory, and updating the stored
information as failed memory cells are detected to indicate a first type
of memory spare is to be assigned to repair a failed memory cell, a
second complementary type of memory spare is to be assigned to repair the
failed memory cell, or the memory is not repairable. The first type of
memory spare corresponds to one of a row and a column portion of memory
and the second complementary type of memory spare corresponds to the
other of the row and column portions of memory.