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Microprocessors & Microcontrollers8086 Registers

Which 8086 registers are commonly used as source and destination index registers for string operations?

  • ASI and DI
  • BAX and BX
  • CCS and DS
  • DSP and IP
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Correct Answer: A. SI and DI
Explanation: SI is the Source Index and DI is the Destination Index, widely used by string instructions.
Reference: Standard microprocessors and microcontrollers: 8086 registers
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