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Author Question: What is the purpose of the hexadecimal number following the 8085 IN or OUT instruction mnemonic? ... (Read 69 times)

joesmith1212

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on: Jul 28, 2018
What is the purpose of the hexadecimal number following the 8085 IN or OUT instruction mnemonic?
 
  A) It is the number of bytes being sent or received across the Data Bus.
  B) It is the name or identifier of the specific device the program is communicating with.
  C) It is the data being sent or received across the Data Bus.
  D) It is the number of binary bits being sent or received across the Data Bus.

Question 2

What register in the 8085 is used as the first operand of an arithmetic operation?
 
  A) the program counter B) the accumulator
  C) the temporary register D) the instruction register


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whitcassie

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

B

Answer to Question 2

B


joesmith1212

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

smrtceo

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Reply 3 on: Yesterday
Gracias!

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