US Patent 7302377 Accelerated event queue for logic simulation

An event queue for use with a software-enabled logic simulation tool can include a heap array and a hash table data structure. The heap array can include time slots organized such that each time slot conforms to heap properties which specify, at least in part, that a root node of the array indicates a time slot having a minimum simulation time value. The hash table data structure can include a plurality of entries, wherein selected ones of the entries specify references to at least one of the time slots.