Note: These examples put the carry *underneath* the two addends. 0 1 0 1 0 1 1 0 1 0 0 0 1 1 0 1 first number + 0 0 1 1 0 0 0 1 1 1 0 0 1 1 1 0 second number (+carry) 0 1 1 1 0 1 1 1 1 0 0 0 1 1 0 0 <== carry _______________________________________ 1 0 0 0 1 0 0 0 0 1 0 1 1 0 1 1 ANSWER Zero:off Carry:off Sign:on Overflow:on (addition of 2 positives should not give a negative) ------ 1 0 0 0 1 1 1 1 0 0 1 1 1 0 0 1 first number + 0 1 1 1 0 0 0 0 1 1 0 0 0 1 1 1 second number (+carry) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 <== carry ________________________________________ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ANSWER Zero:on Carry:on Sign:off Overflow:off (positive plus a negative always give correct 2's Complement results) Hit the "Back" button.