An adder for Gray-coded-decimal digits (see Table 1-2) is
Chapter 9, Problem 9.7(choose chapter or problem)
An adder for Gray-coded-decimal digits (see Table 1-2) is to be designed using a ROM. The adder should add two Gray-coded digits and give the Gray-coded sum and a carry. For example, 1011 + 1010 = 0010 with a carry of 1(7 + 6 = 13). Draw a block diagram showing the required ROM inputs and outputs. What size ROM is required? Indicate how the truth table for the ROM would be specified by giving some typical rows.
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