Test Vectors of 2's Complement Adder and Substractor /Accumulator/MACs

Hi There,

Does any one know any good place(Books ref websites) to find test
vectors that would cover all corner cases for addition substraction
Mutiplication of 2's complement numbers(I am looking for 32 bits)But
just specification of corner cases in any other bit range is also
good.

Thanks
Kamlesh

Kamlesh