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Microprocessor

Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 13
 7
 10

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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?

 1, 3, 4
 1, 3, 5
 1, 2, 5
 2, 3, 5

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 4.
 6.
 3.
 2.

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

Logic IF, block IF, arithmetic IF and negate IF
Logical IF, block IF and arithmetic IF
Logical IF and arithmetic IF
Logical IF and Block IF

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ORI 0FH
 XRI 0FH
 ANI 0FH

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Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 Stack Pointer
 B-C
 D-E
 PSW

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