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Microprocessor

Microprocessor
Which of the following is type declaration statement in C?

prin = prin * prin
int bar
king = horse + 1
s = s + 1

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 has 5 interrupts lines, whereas 6800 has only two
 None
 8085 has multiplexed bus, whereas 6800 does not have
 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O

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Microprocessor
During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

 Both ‘c’ and ‘d’
 None of these
 Bus Interface Unit (BIU)
 Execution Unit (EU)

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

Either A or B depending on the actual number
A smaller floating point number
A larger floating point number
A negative floating point number

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Microprocessor
When the write enable input is not asserted, the gated D latch _________ its output.

Can not change
Clears
Complements
Sets

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 Stack Pointer
 D-E
 B-C
 PSW

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