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Microprocessor

Microprocessor
A combinational PLD with a programmable AND array and a programmable OR array is called a

 PAL
 PLA
 PROM
 PLD

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Microprocessor
Which of the following is a valid integer constant?

127
125 + 3
127
127

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Microprocessor
HLT opcode means

  end of program.
  load data to accumulator.
  store result in memory.
  load accumulator with contents of register.

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Decoder
Mux
Gate
Register

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Microprocessor
The register which holds the information about the nature of results of arithmetic and logic operations is called as

 Accumulator
 Flag register
 Process status register
 Condition code register

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Microprocessor
Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor?

 2, 3, 5
 1, 3, 4
 1, 2, 5
 1, 3, 5

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