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Microprocessor

Microprocessor
Which of the following interrupt is both level and edge sensitive?

 TRAP
 RST 7.5
 INTR
 RST 5.5

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

one million
100000
10000
1000

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 2 and 4
 1, 2 and 3
 2, 3 and 4
 1, 3 and 4

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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 PSW
 POP PSW
 PUSH A

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

False
True

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

 POP PSW
 POP D
 POP B
 POP 30 H

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