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Consider the following registers: A and B registers B and C registers D and E registers H and L registersWhich of these 8-bit registers of…

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Consider the following registers:

  1. A and B registers

  2. B and C registers

  3. D and E registers

  4. H and L registers


Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?
  • Aa, c, d
  • Ba, b, c
  • Cb, c, d
  • Db, d, a
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Discussion 1

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- The 8085/8080A has six general-purpose registers to store 8-bit data


- These are identified as B, C, D, E, H, and L


- They can be combined as register pairs - BC, DE, and HL - to perform some 16-bit operations


Answer is: 3). b, c, d