1. 2. Draw the schematic for a 1-bit full adder (FA). Label inputs and outputs clearly. Draw a black-box diagram for the 1-bit full adder. Label all inputs and outputs inside the block. Call the block FA 3. Draw the schematic of a 4-bit RCA using the FA blocks (block diagram only, internal schematic not required) . Label inputs and outputs clearly. Also show which inputs of the RCA connect to which inputs of the FA. Show which outputs of the FA form the main outputs of the RCA. 4. Draw a black-box diagram for the 4-bit RCA. Show labels for inputs and outputs inside the block. Clearly specify the size of the input/output busses. Call this the RCA 5. Draw the gate-level schematic to compute the group -generate signal and the group-propagate signal of a 4-bit block using 2-input gates and one 4-input gate. The inputs to this circuit should be the 4-bit operands and the output should be the group-generate and group-propagate signals. Lets call this generate-propagate circuit. 6. Draw the black-box model for the generate-propagate circuit. Label inputs and outputs inside the 7. Draw the look-ahead logic circuit to compute the output carry of a 4-bit block from the group- 8. Draw the black-box diagram for the look-ahead logic with the inputs and the outputs appropriately block diagram and specify bus sizes for all inputs and outputs. Call this GP. generate, group-propagate and input carry labeled. Call this block LA 9. Use the RCA, GP, and the LA block to create one level of the CLA. 10. Draw the black-box model of the circuit designed in step 9. Clearly label inputs and outputs inside the box. Call this CLA Level. 11. Put together 8 CLA Level blocks to produce a 32-bit CLA For the pre-lab, turn in the all gate level circuits and block diagrams starting from the full adder, up to the 32-bit adder