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Microprocessor

Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 ANI OFH
 XRI 0FH
 XRI FOH
 ANI F0H

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Microprocessor
CALL instruction is a ______ instruction.

 2 bytes
 4 bytes
 3 bytes
 1 bytes

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Microprocessor
A field programmable ROM is called

 MROM
 FPROM
 PROM
 FROM

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

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Microprocessor
Pick out the matching pair

 S0;S1;wait status
 SID; SIM
 READY; RIM
 HOLD; DMA

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 none of these.
 stack pointer.
 program counter.
 both A and B.

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