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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 8
 12
 4
 6

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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

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

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 244
 247
 245
 246

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Microprocessor
What is mean by ALU

 Arithmetic logic upgrade
 Arithmetic local unsigned
 Arithmetic logic unsigned
 Arithmetic logic unit

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XCHG & DAD H
 XCHG & DAD B
 XTHL & DAD H
 PCHL & DAD D

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Microprocessor
The stack pointer

 may be in RAM or ROM
 resides in ROM
 resides in RAM
 resides in microprocessor

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