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Microprocessor

Microprocessor
Which of the following instruction will never affect the zero flag?

 DCR R
 ORA R
 DCX Rp
 XRA R

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0060H.
 0030H.
 0048H.

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Microprocessor
The addressing mode in instruction PUSH B is

 immediate
 register
 direct
 register indirect

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 7
 13
 16
 10

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Microprocessor
A mask programmed ROM is

 programmed by the user
 erasable and programmable
 erasable electrically
 programmed at the time of fabrication

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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