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Microprocessor

Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 12
 16
 8
 18

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Microprocessor
A 37 bit mantissa has an accuracy of

11 decimal places
8 decimal places
6 decimal places
10 decimal places

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Microprocessor
The first machine cycle of an instruction is always

 A memory read cycle
 An I/O read cycle
 A fetch cycle
 A memory write cycle

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

 POP 30 H
 POP D
 POP PSW
 POP B

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 RIM
 SIM
 EI
 DI

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Microprocessor
The operations executed by two or more control units are referred as

 Micro-operations
 Macro-operations
 Bi control-operations
 Multi-operations

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