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Cadenti
logic family
medium scale integration
metal oxide semiconductor
ac register
accumulator logic
adder circuit
basic computer design
branch unconditionally
flowchart
input and output communication
input output instruction
input register
interrupt cycle
logic adder circuits
logic gates
output register
register and memory
binary code
binary number
clock pulse
data types
decimal numbers
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Design of Accumulator Logic
The adder and logic circuit has three sets of inputs. One set of 16 inputs comes from the outputs of AC. Another set of 16 inputs comes from the data register DR. A third set of eight inputs comes from the input register INPR. The outputs of the adder and logic circuit provide the data inputs for the register. In addition, it is necessary to include logic gates for controlling the LD, INR, and CLR in the register and for controlling the operation of the adder and logic circuit.