  IEEE 754r is the ongoing revision to the IEEE 754 floating point standard and
a major enhancement to the standard is the addition of decimal format. Firstly,
this paper proposes novel two transistor AND and OR gates. The proposed AND
gate has no power supply, thus it can be referred as the Powerless AND gate.
Similarly, the proposed two transistor OR gate has no ground and can be
referred as Groundless OR. Secondly for IEEE 754r format, two novel BCD adders
called carry skip and carry look-ahead BCD adders are also proposed in this
paper. In order to design the carry look-ahead BCD adder, a novel 4 bit carry
look-ahead adder called NCLA is proposed which forms the basic building block
of the proposed carry look-ahead BCD adder. Finally, the proposed two
transistors AND and OR gates are used to provide the optimized small area low
power high throughput circuitries of the proposed BCD adders.
