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Microprocessor

Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 3
 5
 6
 4

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Microprocessor
The execution of RST n instruction causes the stack pointer to

None of these
 decrement by two
 remain unaffected
 increment by two

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 00
 01
 11
 10

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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

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

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Microprocessor
CALL instruction is a ______ instruction.

 3 bytes
 1 bytes
 2 bytes
 4 bytes

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 0FFE H and 0FFF H
 1000 H and 0FFF H
 0FFF H and 0FFE H
 1000 H and 1001 H

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