SystemC Simulation
A = 0x000000000000000000000000000000000
Y = 0x000000000000000000000000000000000

A = 0x0ffffffffffffffffffffffffffffffff
B = 00000
Y = 0x0ffffffffffffffffffffffffffffffff

A = 0x000000000000000000000000000000000
B = 00000
Y = 0x000000000000000000000000000000000

A = 0x000000000000000000000000000000000
B = 00000
Y = 0x000000000000000000000000000000000