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Author Question: What does the instruction SUBB A, data do? A) It subtracts the value of data and borrows from the ... (Read 70 times)

2125004343

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on: Jul 28, 2018
What does the instruction SUBB A, data do?
 
  A) It subtracts the value of data and borrows from the accumulator and places the result in the accumulator.
  B) It subtracts the value of data and borrows from the memory and places the result in the register.
  C) It subtracts the value of data and borrows from the memory and places the result in the accumulator.
  D) It subtracts the value of data and borrows from the register and places the result in the memory.

Question 2

A 555 timer in astable operation uses two timing resistors, RA and RB. Which one is used to calculate time LOW (tLO)?
 
  A) RA B) RB C) both RA and RB D) neither RA nor RB


maaaaaaaaaa

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


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