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Microprocessor

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

45 H
6 AFH
234
64 H

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Microprocessor
S0 and S1 pins are used for

 indicating the processor’s status
None of these
 serial communication
 acknowledging the interrupt

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Microprocessor
An I/O processor controls the flow of information between

Two I/O devices
Main memory and I/O devices
Cache memory and I/O devices
Cache and main memory

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Microprocessor
Temporary registers in 8085 are

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

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Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 16
 5
 8

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 EI
 DI
 RIM
 SIM

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