Author Question: What does the instruction DA A do? A) It adjusts the value in the accumulator, resulting from ... (Read 90 times)

washai · **on:** Jul 28, 2018

What does the instruction DA A do?

A) It adjusts the value in the accumulator, resulting from additions into two BCD digits.
B) It adjusts the value in the register, resulting from multiplications into two binary digits.
C) It adjusts the value in the memory, resulting from a subtraction into two HEX numbers.
D) none of the above

Question 2

Which specialized TTL circuit allows several devices to be connected to its output simultaneously?

A) a shift register B) a three-state device
C) a Schottky device D) a Schmitt trigger circuit