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Microprocessor

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

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

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Microprocessor
‘Burst refresh’ in DRAM is also called

Concentrated refresh
Distributed refresh
None of these
Hidden refresh

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Microprocessor
The control flags in 8086 are:

 the interrupt flag(IF).
 the direction flag(DF).
 the Trap flag(TF).
All of these

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 11000100
 010001000
 01000000
 00000100

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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

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

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, OV, AC, P, CY
 S, Z, AC, P, OV
 S, Z, AC, P, CY
 S, Z, OV, P, CY

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