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Microprocessor

Microprocessor
DMA is used between

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

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 hardware interrupts
 logical interrupts
 software interrupts
 conditional interrupts

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Microprocessor
Temporary registers in 8085 are

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

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Relational, assignment, arithmetic
Arithmetic, relational, assignment
Arithmetic, assignment, relational
Assignment, relational, arithmetic

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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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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

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

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