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Microprocessor

Microprocessor
DMA is used between

 microprocessor and I/O
 none
 memory and I/O
 microprocessor and memory

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH SP
 PUSH A
 PUSH PSW
 POP PSW

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

 32.
 64.
 16.
 128.

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Decoder
Register
Gate
Mux

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Microprocessor
The five flags in 8085 are designated as

Z, C, S, P, AC
Z, CY, S, D, AC
D, Z, S, P, AC
Z, CY, S, P and AC

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Buffers
 Registers
 Decoders
 Accumulators

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