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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 6
 8
 12
 4

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

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

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 1000 H and 1001 H
 0FFF H and 0FFE H
 0FFE H and 0FFF H

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 244
 245
 246
 247

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Microprocessor
How many segments are there in 8086?

 6.
 2.
 4.
 3.

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Microprocessor
S0 and S1 pins are used for

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

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