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Microprocessor

Microprocessor
Which instruction is required to rotate the content of accumulator one bit right along with carry?

 RRC
 RLC
 RAR
 RAL

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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.

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

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 8
 16
 20
 12

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

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

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the user
None of these
 direct memory access for microprocessor
 direct memory access for the I/O device

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Microprocessor
How many bytes in a zero memory page should be reserved for vectors used by RST instructions?

 64.
 32.
 16.
 128.

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