1*8 demultiplexer

gogic gates

half subtracter

8 to 3 line encoder

1x4 De-multiplexers

3 bit binary to gray

logic gates

logic gate

logic unit

4 bit binary to gray

1 bit half adder

1*4 multiplexer

3t8 decoder

logic gates

full adder

SR FLIP FLOP

D FLIP FLOP

full subtractor

logic gate

8X1 MULTIPLEXER

Arithmetic Unit

4 to 2 line encoder

logic gate

4 bit gray to binary

2*2 binary multiplier

3-bit parallel Binary Adder/Subtractor.

logic gate

logic gate

2to4 decoder

3 bits carry look ahead adder