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Microprocessor

Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ORI 0FH
 ANI 0FH
 XRI 0FH

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

Less than
Greater than
The same as
Cannot be determined

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

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Microprocessor
Which one of the following statement is false?

 A microprocessor has an ALU
 A microprocessor has bi-directional data bus
 A microprocessor has bi-directional address bus
 A microprocessor has unidirectional address bus

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Microprocessor
Output of the assembler in machine codes is referred to as

 Source program
 Macroinstruction
 Symbolic addressing
 Object program

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 READY line
 RESTART
 A or B or HOLD line
 any of the five interrupt lines

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