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Microprocessor

Microprocessor
Of the following circuits, the one which involves storage is

Mux
Nand
RS Latch
Decoder

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Microprocessor
While STC instruction executes,

 no flags will be affected.
 only carry flag will be affected.
 only carry and zero flags will be affected.
 all flags will be affected.

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Microprocessor
HLT opcode means

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

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 H-L.
 Stack Pointer.
 D-E.
 Program Counter.

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Microprocessor
The five flags in 8085 are designated as

Z, CY, S, D, AC
Z, CY, S, P and AC
D, Z, S, P, AC
Z, C, S, P, AC

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 RIM
 EI
 SIM
 DI

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