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Microprocessor

Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 XRI FOH
 XRI 0FH
 ANI F0H
 ANI OFH

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Microprocessor
What are the sets of commands in a program which are not translated into machine instructions during assembly process, called?

 Directives
 Identifiers
 Operands
 Mnemonics

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Microprocessor
PSW stands for

 flag byte
 accumulator and flag register contents
 none
 accumulator contents

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Microprocessor
Pick out the matching pair

 READY; RIM
 SID; SIM
 HOLD; DMA
 S0;S1;wait status

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Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

log2 (m)
m
2^m
2*m

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