1. In a system which generates a target device for replacing a programmable logic device (PLD), a method for generating circuitry for incorporation on said target device, said circuitry for initializing a memory in said target device, said method comprising: identifying memory initialization bits in a set of bits used to program said PLD; generating memory initialization control logic in accordance with said memory initialization bits and a selectable control circuitry option; and generating memory data initialization logic in accordance with said memory initialization bits.