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Microprocessor

Microprocessor
The character set of Fortran 77 includes lower case alphabets a to z.

False
True

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

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

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Microprocessor
S0 and S1 pins are used for

 acknowledging the interrupt
 serial communication
 indicating the processor’s status
None of these

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 remain unaffected
None of these
 increment by two
 decrement by two

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Microprocessor
HLT opcode means

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

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Microprocessor
PSW stands for

 accumulator and flag register contents
 flag byte
 none
 accumulator contents

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