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Microprocessor

Microprocessor
Which of the following instruction is not possible in 8085?

 POP 30 H
 POP PSW
 POP D
 POP B

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Microprocessor
In microprocessor based system DMA refers to

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

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Microprocessor
After RESET 8255 will be in

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

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Microprocessor
It is possible to copy a file in the same directory.

False
True

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 8085 has multiplexed bus, whereas 6800 does not have
 None
 8085 has 5 interrupts lines, whereas 6800 has only two

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Microprocessor
Temporary registers in 8085 are

 W and Z.
 B and C.
 H and L.
 D and E.

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