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Microprocessor

Microprocessor
During OPCODE fetch the state of S0 and S1 is

 10
 11
 00
 01

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

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

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are output
 mode 2
 unchanged condition
 mode 0; all ports are input

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Microprocessor
EPROMs are preferred for storing programs while developing new microprocessor based system. Because of their

 random access characteristic
 erasable and programmable characteristic
 non-volatile characteristic
 all the above characteristic

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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
 00000100
 010001000
 01000000

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