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Microprocessor

Microprocessor
The five flags in 8085 are designated as

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

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
4 and 5 respectively
5 and 4 respectively
4 and 3 respectively

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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
The maximum number of seven segment displays that can be connected to 8279 is

 8
 18
 12
 16

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Microprocessor
It is possible to copy a file in the same directory.

True
False

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 irrelevant
 same as the content of A7-A0
 all bits set (i.e. FFH)
 all bits reset (i.e. 00H)

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