We proposed 8 kinds of full adder and all of them are realized in 4 bit ripplecarry adder.
在本文中，我们提出8种不同的全加器电路，分别皆使用4位元链波进位加法器将其实现。
2
The prefix tree adder is useful in compound adder implementation. It is preferred over the ripplecarry adder and the carry lookahead adder.
该加法器适用于复合型加法运算，优于脉动进位加法器和超前进位加法器。
3
The BIST of the principle of achieving is introduced first in this paper, then take the 8-bit ripplecarry adder as an example, describes the design process of BIST.