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MICROPROCESSOR

Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to memory address register .
 incremented by one.
 transferred to memory data register.
 transferred to address bus.

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 EC = IC + FC
 IC = FC + EC
 IC = FC - EC
 IC = FC + 2EC

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Microprocessor
Each instruction in an assembly language program has the following fields 1. Label field 2. Mnemonic field 3. Operand field 4. Comment field What are the correct sequence of these fields?

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

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 246
 244
 245

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Microprocessor
An 8-bit microprocessor signifies that

 8-interrupt lines
 8-bit controller
 8-bit data bus
 8-bit address bus

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